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WO2007119747A1 - Procédé et appareil de fabrication continue d'une ficelle de fines fibres de carbone, et ficelle de fines fibres de carbone - Google Patents

Procédé et appareil de fabrication continue d'une ficelle de fines fibres de carbone, et ficelle de fines fibres de carbone Download PDF

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Publication number
WO2007119747A1
WO2007119747A1 PCT/JP2007/057974 JP2007057974W WO2007119747A1 WO 2007119747 A1 WO2007119747 A1 WO 2007119747A1 JP 2007057974 W JP2007057974 W JP 2007057974W WO 2007119747 A1 WO2007119747 A1 WO 2007119747A1
Authority
WO
WIPO (PCT)
Prior art keywords
fine carbon
substrate
carbon fiber
bobbin
twisted yarn
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/JP2007/057974
Other languages
English (en)
Japanese (ja)
Inventor
Nobuyuki Taniguchi
Manabu Naito
Yasuo Ohta
Yukihiro Abe
Hisato Kobayashi
Kouji Kita
Masaki Nishimura
Tomoyuki Akai
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Osaka Municipal Government
Toyobo Co Ltd
Original Assignee
Osaka Municipal Government
Toyobo Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Osaka Municipal Government, Toyobo Co Ltd filed Critical Osaka Municipal Government
Priority to JP2008510965A priority Critical patent/JP4900619B2/ja
Publication of WO2007119747A1 publication Critical patent/WO2007119747A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F9/00—Artificial filaments or the like of other substances; Manufacture thereof; Apparatus specially adapted for the manufacture of carbon filaments
    • D01F9/08—Artificial filaments or the like of other substances; Manufacture thereof; Apparatus specially adapted for the manufacture of carbon filaments of inorganic material
    • D01F9/12—Carbon filaments; Apparatus specially adapted for the manufacture thereof
    • D01F9/127—Carbon filaments; Apparatus specially adapted for the manufacture thereof by thermal decomposition of hydrocarbon gases or vapours or other carbon-containing compounds in the form of gas or vapour, e.g. carbon monoxide, alcohols
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B82—NANOTECHNOLOGY
    • B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
    • B82Y30/00—Nanotechnology for materials or surface science, e.g. nanocomposites
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F9/00—Artificial filaments or the like of other substances; Manufacture thereof; Apparatus specially adapted for the manufacture of carbon filaments
    • D01F9/08—Artificial filaments or the like of other substances; Manufacture thereof; Apparatus specially adapted for the manufacture of carbon filaments of inorganic material
    • D01F9/12—Carbon filaments; Apparatus specially adapted for the manufacture thereof
    • D01F9/127—Carbon filaments; Apparatus specially adapted for the manufacture thereof by thermal decomposition of hydrocarbon gases or vapours or other carbon-containing compounds in the form of gas or vapour, e.g. carbon monoxide, alcohols
    • D01F9/133—Apparatus therefor
    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
    • D02G3/02—Yarns or threads characterised by the material or by the materials from which they are made
    • D02G3/16—Yarns or threads made from mineral substances
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2101/00—Inorganic fibres
    • D10B2101/10—Inorganic fibres based on non-oxides other than metals
    • D10B2101/12—Carbon; Pitch
    • D10B2101/122—Nanocarbons

Definitions

  • the present invention relates to a method and an apparatus for continuously producing a twisted yarn from fine carbon fibers obtained by chemical vapor deposition, and a fine carbon fiber twisted yarn produced by the method.
  • Fine carbon fibers are excellent in electrical characteristics, mechanical characteristics, and the like, and are expected to be used and applied in various industries including field emission displays and conductive fillers.
  • Patent Document 1 fine carbon fibers made of carbon nanotubes and carbon nanotube sheets using the same have been proposed (Patent Document 1 and Non-Patent Documents 1, 2,) 0
  • Non-Patent Document 1 discloses a method of forming fine carbon fiber twisted yarns from a collection of fine carbon fibers grown in a high density and high orientation on a substrate by chemical vapor deposition.
  • Patent Document 1 and Non-Patent Document 2 the collective strength of fine carbon fibers grown at high density and high orientation on a substrate by chemical vapor deposition is used for fine carbon fiber sheets and fine carbon fiber groups. It is disclosed that it can be formed.
  • Non-Patent Document 1 the spindle made of toothpick is attached to the tip of the rotating shaft of the motor, and a plurality of fine carbon fibers are connected to the tip of the spindle while rotating the spindle.
  • the tip of the spindle is separated from the aggregate substrate force of fine carbon fibers, Manufactures carbon fiber twisted yarn.
  • the length of the fine carbon fiber twisted yarn that can be produced is equal to the movable distance of the motor, and therefore the length of the fine carbon fiber twisted yarn that can be produced at one time is fundamentally limited.
  • examples of methods used for spinning ordinary natural fibers include a ring spinning method and a flyer spinning method. Although these methods can continuously produce twisted yarns, the fine carbon fibers handled in the present invention are very fine, and it has been difficult to use the conventional method of receiving friction in a process that is weak against friction. Therefore, as long as this method was used, it was difficult to apply to industry. (See Non-Patent Document 3)
  • Patent Document 1 International Publication WO2005Z102924 Pamphlet
  • Non-Patent Document 1 Chang et al., “Multifunctional Carbon Nanotube Fiber by Miniaturizing Ancient Technology”, Science Magazine, USA, American Science Promotion Association, November 19, 2004, No. 3 06, 1358-1361 (Zhang et al, Science, AAAS, "Multilunctional Carbon Nano tube Yarns by Downsizing an Ancient Technology, VOL 306, 1358—1361, 19 Nove mber 2004)
  • Non-Patent Document 2 Chang et al., “Tough and Transparent Multifunctional Carbon Nanotube Sheet”, Science, USA, American Society for the Promotion of Science, August 19, 2005, No. 309, 1215-12 19 (Zhang et al., Science, AAAS, Strong, Trasnsparent, Multifunctional, Carbon Nanotube sheets ", 309, 1215-1219, 19 August 2005)
  • Non-Patent Document 3 Author: Hideo Saito et al., Basic Textile Engineering [ ⁇ ], Japan Textile Machinery Society, issued on December 20, 1945, p. 249
  • the present invention has been made in view of the above circumstances, and an object thereof is to provide a method, an apparatus, and a fine carbon fiber twisted yarn suitable for continuously producing a fine carbon fiber twisted yarn. .
  • the method for producing a fine carbon fiber twisted yarn according to the present invention includes a growth step of chemical vapor deposition of an aggregate of fine carbon fibers on a substrate, and an aggregate force on the substrate is also fine.
  • a bow I is continuously removed from the aggregate of fine carbon fibers on the substrate. Twisting the fine carbon fiber that is taken out and wound around the bobbin to form a fine carbon fiber twisted yarn, and performing the twisting step and the winding step at the same time.
  • the method of twisting the fine carbon fibers in the twisting step is because the substrate is rotated, and the twisting step includes a plurality of substrates having the aggregate of fine carbon fibers. Prepare and rotate each substrate around the axis of rotation through each substrate to twist the fine carbon fibers drawn from the assembly cover to form a fine carbon fiber twisted yarn, while rotating the plurality of substrates in common.
  • the fine carbon fiber twisted yarns may be further twisted by further rotating around the axis.
  • the method further comprises a recovery process for recovering the breakage of the fine carbon fiber twisted yarn, and the recovery process includes the ultrafine shaft of the drawing tool having an ultrafine shaft portion on the side surface of the aggregate of the fine carbon fibers.
  • the fine carbon fiber is adhered to the ultra-thin shaft-shaped portion after the stabbed portion has been pierced, and the fine carbon fiber is pulled out without twisting, or the substrate or the drawing tool is rotated to form a fine carbon fiber twisted yarn.
  • the ends of the drawn and drawn twisted yarn are overlapped with one end of the fine carbon fiber twisted yarn already wound on the bobbin, and then the twisted portion is twisted to connect both twisted yarns. It is also possible to connect two twisted yarns by separating the fine carbon fiber twisted yarns connected to the shaft-like portion from the drawing tool.
  • the method further includes a connecting step of connecting the fine carbon fiber twisted yarns wound around the pair of bobbins, the connecting step including the first twisted yarn having one end wound around the first bobbin. Pull out the end, superimpose the other end of the first twisted yarn on the other end of the second twisted yarn, one end of which is tied to the second bobbin, and twist the overlapped portion to connect the two twisted yarns It is possible to connect two fine carbon fiber twisted yarns! [0015] An overlap portion of two twisted yarns to be connected is covered with a wide sheet-like fine carbon fiber drawn out from a substrate on which chemical vapor growth is performed, and then the layer is overlapped. The mating portions may be twisted and connected.
  • fine carbon fibers are grown so that the average length (L) is 0.02 mm or more, and the twisting step has a diameter (D) of D (L / ⁇
  • the ultrafine shaft-shaped portion is formed on the side surface of the aggregate of fine carbon fibers grown on the substrate while rotating the extractor having the ultrafine shaft-shaped portion set to) or without rotating the extractor.
  • the method for producing a fine carbon fiber twisted yarn according to the present invention includes a growth step of chemical vapor deposition of an aggregate of fine carbon fibers on a substrate, and an aggregate force of the fine carbon fibers on the substrate.
  • a pulling and twisting step of forming a fine carbon fiber twisted yarn by twisting the fine carbon fiber by rotating a bobbin while continuously drawing out the fiber, and a fine carbon fiber drawn and twisted A winding step of winding the twisted yarn around a bobbin, and in the drawing and twisting step, a first arrangement in which a cutting rotation axis extends in a direction in which the fine carbon fibers are drawn, and the fine carbon fibers are drawn.
  • the bobbin that can be repositioned between the direction and the second arrangement where the rotation axis intersects is used, and the bobbin is placed in a state where the fine carbon fiber is connected to one end of the bobbin in the first arrangement.
  • the aggregate force of the fine carbon fibers on the substrate is twisted while pulling out the fine carbon fibers, and
  • the bobbin is rearranged to the second arrangement, and then the bobbin is rotated around the take-up rotation axis, and the bobbin is rotated in synchronization with the bobbin rotation.
  • the second step is performed.
  • the fine carbon fiber twisted yarn that has been drawn and twisted is wound around the bobbin, and the pulling and twisting step and the winding step are alternately performed.
  • the present invention also relates to a fine carbon fiber twisted yarn having a diameter 1 to LOONm produced by any of the above-mentioned methods, and having a surface twist angle of 10 to 50 °, and is drawn.
  • a fine carbon fiber twisted yarn having a tensile strength of 200 MPa or more is provided.
  • the present invention is an apparatus for continuously producing twisted yarns of fine carbon fibers obtained by chemical vapor deposition on a substrate.
  • a substrate holding unit that holds the fine carbon fiber, a bobbin that drives the fine carbon fiber twisted yarn, and a fine carbon fiber that is pulled out of the assembly cover on the substrate held by the substrate holding unit and wound on the bobbin.
  • a twisting mechanism for rotating at least one of the substrate holding part and the bobbin in conjunction with bobbin scooping driving so as to twist the bobbin is provided.
  • the substrate holding portion has a rotation axis of the holding portion directed toward a peripheral portion of the bobbin so as to avoid interference between the fine carbon fibers drawn from the aggregate on the substrate and the substrate.
  • the substrate is preferably configured to be held non-parallel to the rotation axis of the holding portion.
  • the fine carbon fiber twisted yarn manufacturing apparatus is drawn from each of the support body that supports the plurality of substrate holding portions and the aggregate on the substrate held by each substrate holding portion.
  • a plurality of first drive units that rotate and drive each of the plurality of substrate holding units in order to twist the fine carbon fibers to be output, and the support is rotated to further twist the fine carbon fiber twisted yarns.
  • the fine carbon fiber twisted yarn manufacturing apparatus preferably includes a windshield in the vicinity of the drawing position of the fine carbon fiber from the substrate.
  • the fine carbon fiber twisted yarn manufacturing apparatus further includes a monitoring device for monitoring a cut state of the fine carbon fiber on the substrate or a pulling state of the fine carbon fiber having the substrate strength.
  • the apparatus for producing fine carbon fiber twisted yarn according to the present invention has an ultrafine shaft-like portion for piercing the side surface of the aggregate of fine carbon fibers grown on the substrate and drawing out the fine carbon fibers.
  • An extraction tool, and a rotation drive device that rotates the extraction tool about an axis, and the diameter (D) of the ultrafine shaft portion of the extraction tool is an average of the fine carbon fibers grown on the substrate. It is preferable to set D (LZ ⁇ ) for length (L)!
  • the drawing tool has at least one of a circumferential groove, a spiral groove, and a protrusion on an outer peripheral surface of the ultrafine shaft-like portion.
  • the present invention is an apparatus for continuously producing a twisted yarn of fine carbon fibers from an aggregate of fine carbon fibers grown on a substrate by chemical vapor deposition, and a substrate holding portion for holding the substrate And a bobbin for scooping and driving the fine carbon fiber twisted yarn, and the bobbin has a tapered end portion for connecting the fine carbon fiber formed at one end in the scooping rotation axis direction.
  • a first arrangement in which the tapered end axis faces the substrate holding part and the fine carbon fiber is drawn out in a direction in which the fine carbon fiber is drawn out, and the direction in which the fine carbon fiber is drawn out and the take-up rotary axis is It is possible to change the arrangement between the intersecting second arrangements, and at least one of the bobbin and the substrate holding part is provided so as to freely reciprocate so as to approach or separate from each other! Providing equipment.
  • At least one of the substrate on which the aggregate of fine carbon fibers is formed and the bobbin are rotated to twist the fine carbon fibers drawn out of the aggregate force and scrape the bobbins.
  • a fine carbon fiber twisted yarn can be continuously produced.
  • FIG. 1 is an SEM photograph showing a 500-fold magnification of a silicon substrate on which carbon nanotubes are grown in a high density and high orientation.
  • FIG. 2 is a side view showing a first embodiment of an apparatus for producing fine carbon fiber twisted yarn according to the present invention.
  • FIG. 3 is a front view of the apparatus shown in FIG. 4 is a cross-sectional view showing a part of FIG. 2 in an enlarged manner.
  • FIG. 5 is an SEM photograph showing a carbon nanotube twisted yarn produced by the apparatus of FIG. 2 at 1000 times magnification.
  • FIG. 6 is a plan view showing a simplified apparatus of FIG. 1 and a drawing tool for recovering thread breakage.
  • FIG. 7 is an enlarged side view of a part of FIG.
  • FIG. 8 is an explanatory diagram for explaining a method for recovering a broken piece of fine carbon fiber twisted yarn.
  • FIG. 9 is an explanatory diagram for explaining a method of connecting fine carbon fiber twisted yarns on two bobbins.
  • FIG. 10 is an enlarged plan view showing a drawn state of the sheet-like fine carbon fiber.
  • FIG. 11 is a perspective view conceptually showing a second embodiment of the apparatus for producing fine carbon fiber twisted yarn according to the present invention.
  • FIG. 12 is a perspective view showing an aspect in which the substrate on which the aggregate of fine carbon fibers is grown is vertically arranged in the apparatus shown in FIG. 11.
  • FIG. 13 is an SEM photograph showing a 5,000 times magnification of a twisted yarn produced by pulling out four substrate strength fine carbon fibers using the apparatus shown in FIG.
  • FIG. 14 is a side view showing a third embodiment of the apparatus for producing fine carbon fiber twisted yarn according to the present invention.
  • FIG. 16 is a sectional view taken along line XVI—XVI in FIG.
  • FIG. 17 is a plan view showing a fourth embodiment of the apparatus for producing fine carbon fiber twisted yarn according to the present invention.
  • FIG. 18 is a side view of the apparatus shown in FIG.
  • FIG. 19 is a plan view showing another operating state of the apparatus of FIG. 17.
  • FIG. 20 is a side view of the apparatus shown in FIG.
  • the present invention relates to a method and an apparatus for continuously producing a fine carbon fiber twisted yarn from an aggregate of fine carbon fibers grown on a substrate by chemical vapor deposition.
  • a known or commercially available substrate can be used.
  • a plastic substrate; a glass substrate; a silicon substrate; a metal substrate containing a metal such as iron or copper or an alloy thereof can be used.
  • a diacid-based silicon film may be laminated on the surface of these substrates.
  • Fine carbon fibers to be chemically vapor-grown on a substrate are vapor-grown carbon fibers such as single-walled carbon nanotubes, double-walled carbon nanotubes, multi-walled carbon nanotubes, and carbon fibers.
  • the form of these fine carbon fibers is not particularly limited, but is preferably formed with high density and high orientation on the substrate for the reason that it is easy to form fine carbon fiber twisted yarns. Desirable to be a collective.
  • High orientation means that fine carbon fibers are adjacent to each other and stand perpendicular to the substrate plane.
  • the order parameter (OP) represented by the following formula (1) is in the range of 0.70 to L 0 (preferably 0.90 to 0.99).
  • Such an assembly of fine carbon fibers that are vertically aligned at a high density by chemical vapor deposition is called a carbon nanotube forest, or a vertically aligned structure of carbon nanotubes.
  • the average length of fine carbon fibers formed by chemical vapor deposition is preferably 0.02 mm or more, more preferably 0.03 mm or more, and more preferably 0.05 mm or more.
  • the average diameter of fine carbon fiber material is not limited In general, 0.5 to: L00 nm, preferably about 1 nm to 100 nm, more preferably about 5 to 50 nm.
  • the temperature at the time of vapor phase growth may be a temperature at a deviation! However, it is particularly preferable to carry out at a high temperature, for example, 600 to: about LOOO ° C.
  • the pressure at the time of vapor phase growth is not limited, but usually it may be performed at atmospheric pressure.
  • the gas used for vapor phase growth only needs to contain carbon, but usually a hydrocarbon such as acetylene may be used.
  • a rare gas such as helium may be used as the carrier gas.
  • the reaction time can be appropriately set depending on the production conditions, but may be, for example, about 3 minutes to 2 hours.
  • FIG. 1 shows a photograph of an aggregate of carbon nanotubes, which are fine carbon fibers formed on the substrate as described above.
  • Figure 1 is an SEM photograph at a magnification of 500 times, showing that fine carbon fibers are vertically aligned at high density on the substrate.
  • a part of the aggregate of carbon nanotubes grown at high density and high orientation on the substrate that is, the aggregate of carbon nanotubes by holding a plurality of fine carbon fibers with tweezers or connecting them to the tip of a thin needle-like object.
  • the carbon nanotubes are pulled out from the substrate as a continuous string of fibers.
  • the mechanism by which such a phenomenon occurs is not necessarily clear, but by properly twisting the filamentary carbon nanotubes drawn out in this way, it becomes possible to pull them out continuously without breaking the yarns.
  • the fine carbon fiber twisted yarn manufacturing apparatus 1A includes a substrate holding unit 6 that holds the substrate 5 and a bobbin 3 that drives the fine carbon fiber twisted yarn as shown in FIGS. .
  • the substrate holding device 2 including the substrate holding unit 6 includes a first drive unit 7 that rotates the substrate holding unit 6.
  • the first drive unit 7 is interlocked with the bobbin 3 take-up drive. In this way, by rotating the first drive unit 7 in conjunction with the bobbin 3 winding operation, the fine carbon fiber drawn from the assembly C on the substrate 5 and wound on the bobbin 3 is twisted. A twisting mechanism is applied.
  • the substrate holding unit 6 can be configured such that a pair of holding pieces 6 a and 6 b are connected by bolts 8.
  • the holding pieces 6a and 6b hold the substrate 5 non-parallel to the rotation axis X.
  • the holding surface is formed to have a predetermined inclination angle ⁇ (FIG. 4).
  • the aggregate C force of the fine carbon fibers on the substrate 5 prevents the fine carbon fiber twisted yarn drawn out and the substrate 5 from interfering with each other.
  • a fiber twist yarn can be produced stably.
  • the substrate holding unit 6 rotates the substrate holding unit 6 as shown in FIG.
  • the axis X is preferably directed toward the peripheral edge of the bobbin 3. If the holding pieces 6a and 6b are prepared with a plurality of holding surface inclination angles, the mounting angle of the substrate 5 can be changed by replacing the holding pieces 6a and 6b as necessary.
  • a drive motor 10 that rotationally drives the bobbin 3 is supported by the slider 11.
  • the slider 11 is slidably supported on a rail 12 extending in a direction perpendicular to the rotation axis X of the substrate holding portion 6, and is connected to the linear actuator 13 and the connecting plate 14.
  • the linear actuator 13 includes a drive motor 15, a transmission belt 16, a screw shaft 17 supported by bearings 17a and 17b, and a nut body (not shown) screwed into the screw shaft 17.
  • the nut body is connected to the connecting plate 14. Then, by rotating the drive motor 15 forward and backward, the slider 11 reciprocates on the rail 12 as the screw shaft 17 rotates forward and backward. In this way, the bobbin 3 can be traversed.
  • the collective force of the fine carbon fibers on the substrate 5 The yarn is pulled out while rotating the fine carbon fibers that are continuously drawn, so that the twisted fine carbon fiber twisted yarn is bobbed. Pull out with 3 and take up. As a result, the drawn fine carbon fiber twisted yarn can be stably and continuously wound around the bobbin 3 without being subjected to friction.
  • the apparatus 1A for producing fine carbon fiber twisted yarn has a distance force from the drawing position of the fine carbon fiber on the substrate 5 to the entry position to the bobbin 3 lOmn! It is preferable to be within the range of ⁇ 1000mm. If this distance is too short, the rotating feeding part and the winding part interfere with each other, so that the winding cannot be performed. On the other hand, if this distance is too long, the process stability will be poor due to the oscillation of the fine carbon fiber twisted yarn that exists between the sending part and the winding part. This is not preferable.
  • the substrate 5 on which the aggregate of fine carbon fibers is formed is rotated at a high speed. It is important that the fine carbon fibers at the corners of the substrate 5 are slightly scraped so that the substrate 5 does not come off, the substrate is exposed, and the exposed portion of the substrate is held and fixed securely.
  • the first driving unit 7 preferably has a high frequency motor capable of rotating at a high speed of 1 to 60000 rpm. If the rotational speed is too small, the number of twists that can be applied to the fine carbon fiber twisted yarn is too small, and the yarn strength of the fine carbon fiber twisted yarn is insufficient. On the other hand, if the rotational speed is too large, the drawing stability of the fine carbon fiber twisted yarn from the aggregate of fine carbon fibers decreases, which is not preferable.
  • the fine carbon fiber twisted yarn manufacturing apparatus 1A is preferably provided with a windshield 18 in the vicinity of the fine carbon fiber delivery port.
  • the substrate on which the fine carbon fibers are formed on the delivery side rotates at a high speed, so that damage to the fine carbon fibers due to air resistance is large. Therefore, by providing a windshield, when the fine carbon fiber rotates at a high speed, air is carried around in the windshield 18 so that damage to the fine carbon fiber can be suppressed.
  • the windshield 18 is preferably made of a transparent component in order to monitor the breakage of the fine carbon fiber twisted yarn or the pulled state of the fine carbon fiber twisted yarn with a stroboscope or the like.
  • the winding device 4 preferably has a winding speed of the bobbin 3 of 0.005 to 30 mZ.
  • the fine carbon fiber twisted yarn manufacturing apparatus 1A is provided with a twisted yarn guide 19 fixed to the substrate holding device 2, and can traverse the bobbin 3.
  • a traverse guide provided on the side of the winding device reciprocates left and right (traverse), so that the thread is wound evenly around the bobbin.
  • this method since the friction between the guide and the yarn is large, a method with less friction is desired in the case of an ultrafine fine carbon fiber twisted yarn as obtained in the present invention.
  • the friction between the fine carbon fiber twist yarn and the twist guide 19 can be reduced.
  • the twisted yarn guide 19 is preferably a satin specification in order to reduce friction as much as possible.
  • a pulley is used as the twisting yarn guide, the friction between the yarn and the twisting guide can be further reduced.
  • the surface of the bobbin 3 is subjected to a surface force to prevent slipping during winding. Thereby, further process stability can be realized.
  • the surface care method for the bobbin is not particularly limited, and examples thereof include mirror finishing and rubber lining.
  • FIG. 5 shows an SEM photograph (1,000 times) of the fine carbon fiber twisted yarn produced by the above apparatus.
  • the twist angle of the twisted yarn is determined by the number of twists per unit length.
  • the twist angle of the twisted yarn is adjusted by the substrate holding device 2 that holds the substrate 5 in the twisted yarn manufacturing device 1A on the fine carbon back and the rotational speed of the bobbin 3.
  • the present inventors have found that there is a relationship between twist angle and twist strength.
  • a twist angle in this range is preferred since good strength is exhibited when the twist angle is 10 to 50 °. Therefore, the rotation driving of the substrate holding device 2 and the bobbin scraping driving are interlocked so that the twist angle becomes 10 to 50 °.
  • the fine carbon fiber twisted yarn manufacturing apparatus 1A can be equipped with a yarn breakage detector.
  • a yarn breakage detector For example, an ultra-fine carbon material twisted yarn that has been pulled out while being twisted between a substrate 5 on which fine carbon fibers are grown and a bobbin 3 is photographed with an imaging device such as a CCD, and the captured image data Is magnified and projected on the display screen, and the image data of the projected video is scanned into the computer, and the number of pixels is counted.
  • the difference in color (darkness) between the background and the twisted yarn can be used to detect yarn breakage when the number of pixels constituting the twisted yarn decreases.
  • the twisted yarn is enlarged and displayed on the display screen, and the image is captured into the computer every 15 seconds.
  • the fine carbon fiber twisted yarn appears dark brown and the background appears light brown.
  • Grayscale For example, when converting with 256 gradations, the number of pixels on the screen is scanned and counted as a portion with fine carbon fiber twisted yarn with 100 or less as black and a background portion without fine carbon fiber twist with 101 or more. Judgment is based on such binary values. Occupy in image It is desirable to expand so that the percentage of the twisted yarn area is 5% or more. If thread breakage occurs, the twisted yarn area in the screen will be smaller than usual. If the area of the twisted yarn area is reduced continuously for two screens, it is possible to detect a yarn break without making a mistake with the uneven thickness of the twisted yarn. Needless to say, thread breakage can be detected by looking at the screen in real time.
  • the apparatus for producing a fine carbon fiber twisted yarn has a side force of the aggregate C of fine carbon fibers on the substrate 5 and a pull having an ultrathin shaft portion 21a for drawing out the fine carbon fibers.
  • a motor 22 that rotates the extraction tool 21 and the extraction tool 21 around its axis 21X can be provided as an accessory.
  • the material of the drawing tool 21 having the ultrathin shaft portion 21a is iron, aluminum, stainless steel, an alloy such as tanda-sten-carbide, plastic, wood, glass or the like, and is not particularly limited.
  • the drawing tool 21 only needs to have an appropriate frictional resistance against the fine carbon fiber.
  • a circumferential groove, a spiral groove, an embossing cutter is formed on the outer peripheral surface of the ultrathin shaft portion 21a. It is desirable to have fine protrusions due to ⁇ .
  • the diameter of the ultrathin shaft portion 21a is determined depending on the average length of the fine carbon fibers grown on the substrate. As described above, the average length (L) of the fine carbon fibers of the fine carbon fiber aggregate C formed on the substrate 5 used in the present invention is 0.02 mm or more.
  • (D) is preferably D ⁇ (LZ TU). If the diameter is D ⁇ (LZ TU), it is calculated that the draw tool is tightly wound around the ultra-thin shaft portion 21a more than once when the drawing tool rotates once in the fine carbon fiber aggregate on the substrate. To pull out the fine carbon fiber with high probability, it is important to stay tight for more than one lap.
  • Micro drills with a blade diameter of 0.05 mm or more are commercially available and can be used as a drawer.
  • the ultrathin shaft portion 21a of the extraction tool 21 is pierced from the side surface of the aggregate C of fine carbon fibers growing on the substrate 5 to enter.
  • the depth of penetration should be greater than 0. Olmm.
  • the height position for piercing the drawing tool 21 is the average of the fine carbon fibers growing on the substrate 5 A length of 1Z2 or less is preferred.
  • the drawer 21 may be rotating or may stop rotating. The entry is stopped when the ultra-thin shaft 21a of the extraction tool 21 enters more than 0. Olmm. With the drawing tool 21 placed at this location, the ultrathin shaft portion 21a of the drawing tool 21 is rotated about its axis.
  • the extraction tool 21 is rotated at LOOO rpm for 1 second to 5 minutes, the extraction tool 21 is separated from the substrate 5 while being rotated at 1-: LOOO rpm, and the fine carbon fibers are pulled out from the assembly C. Then, after the drawing tool 21 is moved onto the bobbin 3, the movement and rotation of the drawing tool 21 are stopped and stopped.
  • the bobbin 3 After contacting the bobbin 3 with the fine carbon fiber twisted yarn drawn from the assembly on the substrate 5 as described above, the bobbin 3 is started to rotate, and the substrate is rotated to twist and spin the yarn. You can start.
  • the tension when the fine carbon material fiber is pulled out from the substrate is usually 0.05 to 0.5 mN. When this value is exceeded, thread breakage easily occurs. Therefore, if thread breakage occurs during prevention, it is extremely difficult to connect the ends of two fine carbon material twisted yarns that have been broken by hand in the same way as when handling cotton fibers, for example. is there. Therefore, a method for connecting twisted yarns when a yarn breakage occurs during spinning of fine carbon fiber twisted yarn will be described with reference to FIG.
  • the ultrathin shaft portion 21a of the drawing tool 21 is allowed to enter into the aggregate C of fine carbon fibers grown on the substrate 5, and the above-mentioned Pull out the fine carbon fiber T1 again without twisting in the manner described above, or rotate the drawer 21 to bring the twisted yarn of the fine carbon fiber T1 up to the top of the bobbin 3. It is also possible to pull out the fine carbon fiber twisted yarn by stopping the rotation of the drawing tool 21 and rotating the substrate 5. In this way, the fine carbon fiber twisted yarn drawn from the aggregate of fine carbon fibers on the substrate 5 by the drawing tool 21 is drawn to the upper position of the bobbin 3 and stretched tightly.
  • the other end of the twisted yarn Ta is pulled out, a paper-made lightweight weight 11a is connected to the pulled-out tip, and the bottle is passed through the guide 10a. Tighten.
  • the other end of the twisted yarn Tb one end of which is wound around another bobbin 3b, is similarly pulled out, and a lightweight paper weight l ib is connected to the pulled-out tip and tensioned tightly through the guide 10b.
  • Twist yarn Ta and twisted yarn Tb are overlapped between guides 10a and 10b, bobbin 3b is rotated with the twisted yarn as the center of rotation, and the overlapping portion of twisted yarn Ta and Tb is twisted to form one long fine carbon Fiber twist yarns can be manufactured.
  • the rotation speed of the bobbin 3b at this time is preferably about l to 1000 rpm, and it is desirable to rotate slowly at the beginning. After twisting the overlapping part of the twisted yarn Ta and Tb, the unwinding rotation of the bobbin 3a and the winding rotation of the bobbin 3b are synchronized, and the fine carbon fiber twisted yarn is sent from the bobbin 3a to the bobbin 3b and wound by the bobbin 3b. take.
  • the fine carbon fiber sheet size is preferably width lmm x length lmm or more!
  • a liquid to the overlapping portion of the two fine carbon fiber twisted yarns Ta and Tb is very effective in improving the connection strength of the overlapping portion.
  • the superposition of twisted yarn Ta and Tb When a liquid is applied to the part, the separated fine carbon fiber yarns aggregate and tighten to increase the binding force. Thereafter, as described above, the overlapping portion of the fine carbon fibers is twisted and wound.
  • the liquid to be used it is preferable to use a liquid having a dielectric constant force or more that preferably has polarity.
  • Examples thereof include alcohols having 1 to 5 carbon atoms, acetone, tetrahydrofuran, dimethylformamide, dimethylacetamide, water, ethyl acetate, and acetonitrile.
  • alcohols having 1 to 5 carbon atoms include alcohols having 1 to 5 carbon atoms, acetone, tetrahydrofuran, dimethylformamide, dimethylacetamide, water, ethyl acetate, and acetonitrile.
  • methanol, ethanol, isopropanol, acetone, tetrahydrofuran, ethyl acetate, and acetonitrile are preferable.
  • the substrate holding device 2 includes a support 20 that supports a plurality of substrate holding portions 6, and a plurality of fine carbon fiber twisted yarn manufacturing apparatuses 1 B according to the second embodiment.
  • two or more substrates 5 arranged on the same surface of the support 20 are simultaneously rotated around the first drive shaft 6c. Then, the support 20 is rotated about the axis G in a common rotation for each substrate 5 by rotating. As a result, two or more fine carbon fibers are efficiently wound and the damage to the yarn is kept to a minimum compared to the case where a yarn is wound around a bobbin and then a plurality of them are prepared and then twisted together. A yarn in which twisted yarns are twisted together can be produced.
  • the fine carbon fiber twisted yarn is pulled down downward until the fine carbon fiber twisted yarns are twisted together, thereby reducing the slack of the fine carbon fiber twisted yarn. Reduce the amount of fine carbon fiber between the delivery part and the take-up part Since the tension applied to the yarn is always kept constant, further process stability can be realized.
  • the fine carbon fiber twisted yarn may be pulled out from above.
  • the substrate 5 can also be arranged vertically with respect to the support 20 as shown in FIG.
  • FIG. 13 shows an SEM photograph (5000 times) of the fine carbon fiber twisted yarn produced by the fine carbon fiber twisted yarn production apparatus 1B of the second embodiment.
  • the fine carbon fiber twisted yarn manufacturing apparatus 1C of the third embodiment includes, as shown in FIGS. 14 to 16, a substrate holding device 2 having a substrate holding portion 6 and a scraping device 4C having a bobbin 3.
  • a substrate holding device 2 having a substrate holding portion 6
  • a scraping device 4C having a bobbin 3.
  • the scraping device 4C supports the bobbin 3 so as to be rotatable around the scraping rotation axis, meshes with the ring gear 23 having teeth on the outer peripheral surface, and the outer peripheral teeth of the ring gear 23, and the ring gear 23
  • a drive gear 24 that rotates the shaft, a pinion gear 25 fixed to the rotating shaft 3a of the bobbin 3, and a face gear 26 that meshes with the pinion gear 25 and gives the bobbin 3 a take-off rotation.
  • the ring gear 23 is rotatably supported by a main body portion 41 of the scraping device 4C via a bearing or the like.
  • the ring gear 23 rotates clockwise in FIG. 15, and the rotation of the ring gear 23 causes the bobbin 3 to move to the ring gear 23.
  • rotation of the bobbin 3 around the rotation axis 3a of the bobbin 3 is imparted to the bobbin 3 by the meshing of the pinion gear 25 and the face gear 26.
  • the Bobbin 3 is given a rotation of rotation by rotation in the direction of arrow Y, and at the same time it is rotated by twisting by rotation in the direction of arrow X.
  • a twisting mechanism is constructed in which the bobbin 3 is rotationally driven in the direction of the arrow X to twist the bobbin 3 in conjunction with the winding drive in the direction of the arrow Y of the bobbin 3.
  • the bobbin 3 is driven in the direction of the arrow Y in the direction of the arrow Y, and the bobbin 3 is rotated in the direction of the arrow X so that the twist angle is 10 to 50 °.
  • Link with drive is constructed in which the bobbin 3 is rotationally driven in the direction of the arrow X to twist the bobbin 3 in conjunction with the winding drive in the direction of the arrow Y of the bobbin 3.
  • the fine carbon fiber manufacturing apparatus 1D of the fourth embodiment includes a substrate holding device 30 including a substrate holding portion 30a and a scraping device 33 including a bobbin 32.
  • the scraping device 33 has a first drive unit 34 for winding and rotating the bobbin 32. Further, the scraping device 33 includes a tapered end portion 31 for connecting a fine carbon fiber to the tip of the bobbin 32 in the scraping rotation axis A direction. Further, the bobbin 32 is rotatably arranged around an axis B (FIG. 18) that is substantially perpendicular to the rotation axis A, and the tapered end portion 31 faces the substrate holding portion 30a and the fine carbon fiber is drawn out.
  • the substrate holding device 30 supports the substrate holding portion 30a in a reciprocating manner by a linear actuator or the like so that the substrate holding portion 30a approaches the scraping device 33 or the scraping device 3 It has come away from 3.
  • the scraping device 33 may be reciprocally movable so as to approach or separate from the substrate holding portion 30a.
  • the fine carbon fiber twisted yarn manufacturing apparatus 1D uses the bobbin 32 in a state where the fine carbon fiber is connected to one end of the bobbin 32 in the first arrangement shown in FIGS. By rotating the substrate 5 in the direction away from the bobbin 32 while rotating around the axis A, the aggregate force of the fine carbon fibers on the substrate 5 is twisted while pulling out the fine carbon fibers T.
  • the bobbin 32 is rearranged to the second arrangement shown in FIGS. 19 and 20, and then the bobbin 32 is rotated again about the take-off rotation axis A.
  • the substrate 5 is moved so that the distance between the substrate 5 and the bobbin 32 is reduced in synchronization with the rotation of the bobbin 32, whereby the fine carbon fiber twisted yarn drawn out and twisted is wound around the bobbin 32. .
  • the long fine carbon fiber twisted yarn can be wound on the bobbin 32 by alternately performing the step of drawing and twisting and the step of winding.
  • an apparatus 1D for producing fine carbon fibers pulling a collection of fine carbon fibers on a substrate 5
  • the distance from the lead position to the tip 31 is lmn! It is preferable that the reciprocating distance of the substrate holding part 3a is set so as to be within a range of ⁇ 1000 mm. If this distance is too short, productivity is actually poor. On the other hand, if this distance is too long, the process stability becomes poor due to the oscillation of the fine carbon fiber twisted yarn existing between the tapered end portion 31 and the fine carbon fiber on the substrate 5, which is not preferable.
  • the winding speed of the take-up device 33 in which the rotational speed of the first drive unit 34 is preferably 1 to 60000 rpm, is It is preferable to be from 0.005 to 30mZ minutes.
  • the fine carbon fiber twisted yarn is such that the first drive unit 34 is on the lower side, the substrate holding device 30 is on the upper side, and the direction in which the fine carbon fiber is drawn out is the vertical direction.
  • the manufacturing apparatus 1D can be arranged. As a result, the tension applied to the fine carbon fiber twisted yarn between the sending part and the take-up part can be kept constant without causing any slack of the fine carbon fiber twisted yarn, so that further process stability can be realized.
  • the fine carbon fiber twisted yarn obtained in the present invention may be used as it is or may contain a binder.
  • a binder or the like the fine carbon fiber twisted yarn can be made even stronger.
  • the binder is not limited as long as it binds the fine carbon material twisted yarn, and examples thereof include polybulu alcohol.
  • the fine carbon fiber twisted yarn of the present invention or those containing a binder may be tied into a loop, or may be processed into a woven fabric or a knitted fabric. By applying this binder, even if the fine carbon material twisted yarn wound on the bobbin is wound up in multiple stages, the upper and lower twisted yarns can be entangled and wound back without breaking. That's it.
  • the present invention is not limited to the above embodiment, and various modifications are possible.
  • an apparatus that twists the fine carbon fiber by rotating either the substrate holding part or the bobbin is exemplified, but the first embodiment and the third embodiment are combined. Then, it is possible to twist the fine carbon fiber twisted yarn by rotating both the substrate holding portion and the bobbin.
  • the end of the bobbin 32 is tapered. Instead of the end 31, an extra-thin shaft portion 21 a can be used.
  • This substrate was placed in a thermal CVD apparatus, and an aggregate of carbon nanotubes was formed on the substrate by performing a thermal CVD method.
  • the gas supplied into the thermal CVD was a mixed gas of acetylene gas and helium gas (acetylene gas 5.77 vol%).
  • the thermal CVD conditions were as follows: temperature: 700 ° C., pressure: atmospheric pressure, acetylene gas concentration increase rate in the initial stage: 0.10 vol% Z seconds, reaction time: 10 minutes.
  • acetylene gas and helium gas were supplied into a thermal CVD apparatus, and the carbon nanotubes of Example 1 were grown on the substrate by chemical vapor deposition.
  • the grown carbon nanotubes have an average length of 190 m and a thickness of about 15.3 nm.
  • the aggregate of carbon nanotubes on the substrate is formed with a high density and high orientation with a bulk density of 40 mgZcm 2 and an order parameter of 0.94. It was in the state of an aggregated carbon nanotube.
  • the substrate attached as described above is wound at a take-up speed of 0.1 mZ while rotating at 8000 rpm, and a continuous twisted yarn with a twist of 80000 TZm per lm over 25 m. Was able to be produced.
  • the winding bobbin was slowly traversed in the range of 15 cm with a length of 15 cm and a diameter of 6 cm so that the wound yarns did not overlap.
  • the twist angle of the string was measured.
  • the average twist angle was 48 ° and the tensile strength was 203 MPa. Spinning production was repeated twice more using this substrate, and the tensile strength was 235 and 310 MPa.
  • a twisted yarn was prepared using carbon nanotubes grown on a substrate manufactured in the same manner as in Example 1.
  • the substrate holding device 2 of the fine carbon fiber twisted yarn manufacturing apparatus (FIGS. 2 and 3) of the first embodiment holds the substrate, and the angle ( ⁇ ) formed between the silicon substrate and the rotation axis of the substrate holding portion is 15 °. .
  • the pull-out position force was also set to 50 mm from the take-up bobbin entry position.
  • the substrate was wound at a winding speed of 0.2 mZ while rotating at 8000 rpm, and a twisted body of continuous twisted yarns with a number of twists per lm of OOOOTZm was able to be produced over 18.2 m. .
  • the twist angle of the string was measured.
  • the average twist angle was 25 ° and the tensile strength was 305 MPa. When the spinning production was repeated three more times using this substrate, the tensile strengths were 560, 410, and 265 MPa.
  • a twisted yarn was prepared using carbon nanotubes grown on a substrate manufactured in the same manner as in Example 1.
  • the substrate holding device 2 of the fine carbon fiber twisted yarn manufacturing apparatus (FIGS. 2 and 3) of the first embodiment holds the substrate, and the angle ( ⁇ ) formed between the silicon substrate and the rotation axis of the substrate holding portion is 15 °. .
  • the pull-out position force was also set to 50 mm from the take-up bobbin entry position.
  • the substrate was wound at a winding speed of 0.lmZ while rotating at 2000rpm, and a continuous twisted filament with a twist of 20000TZm per lm could be produced over 20.5m. .
  • the average twist angle was 15 ° and the tensile strength was 320 MPa. Spinning production was repeated once more using this substrate, and the tensile strength was 295 MPa.
  • a twisted yarn was prepared using carbon nanotubes grown on a substrate manufactured in the same manner as in Example 1.
  • the substrate holding device 2 of the fine carbon fiber twisted yarn manufacturing apparatus (FIGS. 2 and 3) of the first embodiment holds the substrate, and the angle ( ⁇ ) formed between the silicon substrate and the rotation axis of the substrate holding portion is 15 °. .
  • the pull-out position force was also set to 50 mm from the take-up bobbin entry position. While the substrate is rotated at lOOOOrpm, the substrate is wound at a winding speed of lmZ, 16 It was possible to produce a continuous twisted filament with a number of twists per lm of lOOOOTZm over 6m.
  • the average twist angle was 8 °, and the tensile strength was 135 MPa. Spinning production was repeated two more times using this substrate, and the tensile strength was 60 MPa.
  • a twisted yarn was prepared using carbon nanotubes grown on a substrate manufactured in the same manner as in Example 1.
  • the substrate holding device 2 of the fine carbon fiber twisted yarn manufacturing apparatus (FIGS. 2 and 3) of the first embodiment holds the substrate, and the angle ( ⁇ ) formed between the silicon substrate and the rotation axis of the substrate holding portion is 15 °. .
  • the pull-out position force was also set to 50 mm from the take-up bobbin entry position. While the substrate was rotated at lOOOOrpm, the substrate was wound at a winding speed of 0.1 lmZ and 15.3 m of continuous twisted filaments with a number of twists per lm of lOOOOOTZm could be produced.
  • the average twist angle was 70 °, and the tensile strength was 90 MPa. Spinning production was repeated four more times using this substrate, and the tensile strength was 40, 50, 100, and 130 MPa.
  • a twisted yarn was prepared using carbon nanotubes grown on a substrate manufactured in the same manner as in Example 1.
  • the grown carbon nanotubes have an average length of about 180 m and a thickness of about 16.6 nm, and the aggregate of carbon nanotubes on the substrate has a bulk density of 20 mg / cm 2 and a high density and high orientation of the order parameter of 0.88. It was in the state of the carbon nanotube aggregate formed by.
  • the substrate was held by the substrate holding device 2 of the fine carbon fiber twisted yarn manufacturing apparatus (FIGS. 2 and 3) of the first embodiment, and the angle (ex) between the silicon substrate and the rotation axis of the substrate holding portion was 15 °.
  • the pull-out position force was also set to 5 Omm from the entry position to the take-up bobbin.
  • the substrate was wound at a winding speed of 0.5 mZ while rotating at 20000 rpm, and a continuous twisted yarn body having a twisting number of 0000 TZm per lm over 18.8 m could be produced.
  • the average twist angle is 24 °, and the tensile strength is 360 MPa.
  • a carbon nanotube grown on a substrate manufactured in the same manner as in Example 1 was used.
  • a twisted yarn was produced.
  • the average length 160 m of grown carbon nanotubes, the thickness 19. Is about onm, aggregate of carbon nanotubes on the substrate bulk density 60 mg / cm 2, a high density and high orientation of ⁇ ordinal parameter 0.96 It was in the state of the carbon nanotube aggregate formed by.
  • the substrate was held by the substrate holding device 2 of the fine carbon fiber twisted yarn manufacturing apparatus (FIGS. 2 and 3) of the first embodiment, and the angle (ex) between the silicon substrate and the rotation axis of the substrate holding portion was 15 °.
  • the pull-out position force was also set to 5 Omm from the entry position to the take-up bobbin.
  • the substrate was wound at a winding speed of lmZ while rotating at 40000 rpm, and a twisted body of continuous twisted yarns with the number of twists per lm of OOOOTZm could be produced over 28.lm.
  • the average twist angle was 23 ° and the tensile strength was 325 MPa.
  • a twisted yarn was prepared using carbon nanotubes grown on a substrate manufactured in the same manner as in Example 1.
  • the average length 175 m of grown carbon nanotubes, the thickness 10. Is about onm, aggregate of carbon nanotubes on the substrate is high density and high orientation of bulk density 50 mg / cm 2, ⁇ ordinal parameter 0.95 It was in the state of the carbon nanotube aggregate formed by.
  • the substrate is held by the substrate holding device 2 of the fine carbon fiber twisted yarn manufacturing apparatus (FIGS. 2 and 3) according to the first embodiment, and the angle formed between the silicon substrate and the rotation axis of the substrate holding portion 6 is 15 °. .
  • the pulling position force was set to 50 mm to the entry position to the take-up bobbin.
  • the substrate While rotating the substrate at 4000 rpm, the substrate was scraped at a winding speed of 0.1 lmZ, and a twisted body of continuous twisted yarns of OOOOTZm per lm was produced over 18.5 m.
  • the average twist angle was 26 ° and the tensile strength was 405 MPa.
  • a twisted yarn was prepared using carbon nanotubes grown on a substrate manufactured in the same manner as in Example 1.
  • the grown carbon nanotubes have an average length of about 185 m and a thickness of about 50 .Onm.
  • the aggregate of carbon nanotubes on the substrate has a bulk density of 25 mg / cm 2 and a high density and high orientation of the order parameter of 0.95. It was in the state of the carbon nanotube aggregate formed by.
  • Substrate of fine carbon fiber twisted yarn manufacturing device (Figs. 2 and 3) of the first embodiment The substrate was held by the holding device 2, and the angle formed between the silicon substrate and the rotation axis of the substrate holding part was 15 °.
  • the pull-out position force was also set to 50 mm from the take-up bobbin entry position.
  • the substrate was rotated at 400 rpm, it was wound at a take-up speed of 0. OlmZ, and a continuous twisted yarn with a number of twists per lm of OOOOTZm could be produced over 19.8 m. .
  • the average twist angle was 24 ° and the tensile strength was 345 MPa.
  • the carbon nanotubes produced in the same manner as in Example 1 have an average length of 190 m and a thickness of about 6.3 nm.
  • the aggregate of carbon nanotubes on the substrate has a bulk density of 40 mg / cm 2 and an order parameter of 0.94.
  • the substrate was held by the substrate holding device 30 of the fine carbon fiber manufacturing apparatus 1D (FIGS. 17 to 20) of the fourth embodiment.
  • a part of the carbon nanotube was attached to the rotating tip 31 and then the following unit operations 1 and 2 were alternately repeated twice to produce a twisted yarn having a twist number of 40000 TZm per lm.
  • Unit operation 1 As shown in FIGS. 17 and 18, while rotating the axis A of the rotation tip 31 in the moving direction of the carbon nanotube substrate, the motor as the first drive unit 34 is rotated at 4000 rpm. The substrate was moved 50 cm at a speed of 0.1 lmZ in a direction away from the rotational tip force. After the rotation of the motor and the movement of the substrate were stopped, the rotation tip was rotated 90 ° around the rotation axis B for each motor, resulting in the arrangement shown in FIGS.
  • Unit operation 2 While rotating the bobbin 32 slowly, the bobbin 32 was moved 50 cm in the direction approaching the carbon nanotube substrate, and the carbon nanotube twisted yarn pulled out by the unit operation 1 was wound around the winding bobbin 32. After winding, the rotation of the motor and the movement of the substrate were stopped, and the rotation core 31 was rotated 90 ° together with the motor 34, and again placed in the state shown in FIGS.
  • Example 9 In the fine carbon fiber twisted yarn production apparatus (Figs. 2 and 3) of the first embodiment, the substrate holding device 2 force is continuously applied to the carbon nanotube twisted yarn pulled out from the substrate at a distance of 5 mm by 0.0001 wt% of the poval.
  • a twisted yarn was prepared in the same manner as in Example 1 except that the aqueous solution was applied at a ratio of lmlZmin.
  • the average length of the carbon nanotubes grown on the substrate is 185 / ⁇ ⁇ , the thickness is about 60.7 nm, and the aggregate of carbon nanotubes on the substrate has a bulk density of 25 mg / cm 2 and an order parameter of 0.95. It was in the state of carbon nanotube aggregates formed with high density and high orientation.
  • the substrate was held by the substrate holding device 2, and the angle (diameter) between the silicon substrate and the rotation axis of the substrate holding part was 15 °.
  • the distance from the drawer Lf position to the entry position to the take-up bobbin was 50 mm.
  • the substrate was wound at a winding speed of 0.2 mZ while rotating at 8000 rpm, and a continuous twisted thread body having a twist number of 40000 TZm per lm over 25.3 m could be produced.
  • the average twist angle was 24 °.
  • the winding bobbin had a diameter of 3 cm and was wound while traversing, but the yarn was wound up in a maximum of three stages. When I loosened this thread, it unraveled without problems.
  • a twisted yarn was produced in the same manner as in Example 9 except that no poval aqueous solution was applied.
  • the yarn was scattered at the place where the yarn overlapped on the surface of the winding bobbin, and there was a place where the winding could not be loosened well.
  • Example 8 the fine carbon fiber manufacturing apparatus 1D (FIGS. 17 to 20) of the fourth embodiment is assembled in a vertical arrangement so that the base plate holding part is on the upper side and the rotation tip is moved to the lower side. found.
  • a twisted yarn was produced in the same manner as in Example 8 except that the twisted yarn was drawn downward by about lm and then moved upward to wind up the twisted yarn. The wound yarn was 16m long.
  • the produced thread body was observed by SEM and the twist angle was measured (however, including the twisted yarn where the unit operations 1 and 2 were switched). The average twist angle was 28 ° and the tensile strength was 253 MPa.
  • Example 2 In the same manner as in Example 1, a part of the carbon nanotubes was attached to the tapered end portion 31 of the fine carbon fiber production apparatus of the fourth embodiment from the substrate on which the aggregate of carbon nanotubes was formed. While rotating the rotation axis A of the substrate 5 in the moving direction of the substrate 5, the substrate was moved by hand in the direction away from the tapered end while rotating the motor as the first drive unit 34 at lOOOOrpm. Although the lm twisted yarn could be pulled out, the twisted yarn was broken by the swinging of the pulled twisted yarn, and it was impossible to produce a twisted yarn of lm or more.
  • the carbon nanotube substrate 5 manufactured in the same manner as in the first example was held and fixed on the substrate holding unit 6 of the fine carbon fiber twisted yarn manufacturing apparatus (FIGS. 6 and 7).
  • the ultrathin shaft portion 21a can be Pierced the side of the tube assembly C, entered 1mm and stopped.
  • the extraction tool was rotated at 20 rpm for 10 seconds, and then the extraction tool 21 was retracted by 0.1 mm Z seconds and separated from the substrate.
  • the drawing tool is 1 mm away from the substrate, the substrate 5 is rotated at lOOOO rpm to stop the rotation of the drawing tool 21, and this is moved onto the take-up bobbin 3 by 0. 1 lmZ.
  • the carbon nanotube twisted yarn was wound and fixed on the bobbin 3, the carbon nanotube twisted yarn was released from the puller force.
  • the reel was wound at a winding speed of 0.1 lmZ, and a continuous twisted filament with a number of twists per lm of lOOOOOTZm could be produced over lm.
  • a micro drill having a drill blade having a length (blade length) of 5 mm and a diameter (blade diameter) of 0.03 mm is used as an extraction tool, and the ultra-thin shaft portion 21a of the extraction tool 21 is used as a carbon nanotube on the substrate 5.
  • Carbon nanotubes were drawn from the carbon nanotube aggregate C on the substrate 5 in the same manner as in Example 13 except that the depth of entry into the aggregate C was 2 mm. After 10 attempts, the carbon nanotubes were pulled out 8 times, and the process of winding the carbon nanotube twisted yarn on the take-up bobbin 3 was successfully completed.
  • a micro drill having a length of lmm and a diameter of 0.03 mm and provided with a drill blade having a spiral groove of two cycles is used as an extraction tool, and the ultrathin shaft portion 21a of the extraction tool 21 is placed on the substrate 5.
  • the carbon nanotubes were pulled out from the aggregate of carbon nanotubes on the substrate 5 in the same manner as in Example 13 except that the depth of penetration of the carbon nanotubes into the aggregate C was 2 mm.
  • the carbon nanotubes were pulled out 9 times after trying 10 times, and it was possible to shift to the winding process of the carbon nanotube twisted yarn on the winding bobbin 3.
  • the ultrafine shaft 2 la of this extractor 21 is The carbon nanotubes were also pulled out by the collective force of the carbon nanotubes on the substrate 5 in the same manner as in Example 13 except that the depth of entering the tube C was 2 mm. Ten The carbon nanotubes could be pulled out 9 times after the trial, and the process of winding the carbon nanotube twisted yarn on the take-up bobbin 3 could be started.
  • a micro drill having a drill blade having a length of 5 mm and a diameter of 0.03 mm is used as an extraction tool, and the depth at which the fine shaft portion 21a of the extraction tool 21 enters the carbon nanotube aggregate C on the substrate 5
  • Carbon nanotubes were drawn from the aggregate of carbon nanotubes on the substrate 5 in the same manner as in Example 13 except that the thickness was changed to 0.2 mm. After 10 attempts, it was possible to pull out 6-force single-bonn nanotubes and move on to the process of winding the carbon nanotube twisted yarn on the take-up bobbin 3.
  • the length of the tube is 3mm, the diameter is 0.03mm, and the tip force is a bow I with a spiral groove toward the root.
  • the carbon nanotubes were also pulled out by the collective force of the carbon nanotubes on the substrate 5 in the same manner as in Example 13 except that the depth of entering the carbon nanotube aggregate C was 2 mm.
  • the carbon nanotubes were pulled out 9 times after trying 10 times, and the force on the winding bobbin 3 was transferred to the winding process of the single-bonn nanotube twisted yarn.
  • Carbon nanotubes were extracted from the carbon nanotube aggregate C on the substrate 5 in the same manner as in Example 13 except that the extraction tool 21 having an ultrathin shaft portion 21a having a diameter of 0.08 mm was used. I tried 5 times and was able to bow out the carbon nanotubes only once, but I could't pull it out 4 times.
  • Carbon nanotubes were extracted from the carbon nanotube aggregate C on the substrate 5 in the same manner as in Example 13 except that the extraction tool 21 having an ultrathin shaft portion 21a having a diameter of 0.1 mm was used. I tried 5 times and didn't pull out carbon nanotubes 5 times o
  • An ultra-thin shaft-shaped part 21a with a length of lmm and a diameter of 0.03mm with a mirror finish The carbon nanotubes are pulled out from the aggregate of carbon nanotubes on the substrate 5 in the same manner as in Example 13 except that the extraction tool 21 having the carbon nanotube aggregate C on the substrate 5 has a penetration depth of 2 mm. It was. I tried 5 times and pulled out the carbon nanotubes only once.
  • the carbon nanotube substrate manufactured in the same manner as in the first example was held and fixed on the substrate holding unit 6 of the fine carbon fiber twisted yarn manufacturing apparatus shown in FIGS.
  • the ultrathin shaft portion 21a of the extraction tool 21 was pierced and stopped by lmm. In this state, the extraction tool was rotated around its axis at 20 rpm for 10 seconds, and then the extraction tool 21 was retracted in 0.1 mmZ seconds to release the substrate force.
  • Fig. 8 (a) the ultrathin shaft-shaped portion 21a of the extraction tool is again grown on the substrate 5 and into the aggregate of fine carbon fibers, and the above-described procedure is performed. Then, the fine carbon fiber T1 was pulled out again, and the twisted yarn of the fine carbon fiber was taken up to the top of the bobbin 3 while rotating the drawing tool 21 around its axis. Here, the rotation of the drawer was stopped. Next, as shown in FIG.
  • the drawing tool is stopped from rotating, and the substrate 5 is rotated at lOOOOrpm and at the same time connected to the drawing tool.
  • the carbon nanotube twisted yarn was cut, and as shown in FIG. 8 (d), the winding bobbin 3 was rotated and spinning was resumed at a winding speed of 0.1 lmZ.
  • a total of two connecting operations were carried out to obtain a carbon nanotube twisted yarn having an average diameter of 3 ⁇ m and a length of 10 m.
  • Two wound lm bodies of carbon nanotube twisted yarn having a length of lm manufactured by the method shown in Example 19 were set in an apparatus as shown in FIG. Pull out one end of the carbon nanotube twisted yarn Ta from the take-up bobbin 3a, connect a paper weight 11a of 5mm X 5mm (l. 9 X 10 _3 mg) to the tip of the take-out bobbin 3a, and also turn the carbon nanotube twisted yarn from the take-up bobbin 3b
  • One end of Tb was pulled out, and a similar weight l ib was connected to the tip of the Tb, and it was stretched tightly through the guides 10a and 10b, and overlapped with the lump between the guides lcm.
  • the take-up bobbin 3a was rotated in the direction with the stretched twisted yarn Ta as the central axis to twist the overlapping portion.
  • the winding bobbin 3a was rotated at lOrpm for 10 minutes to connect the two carbon nanotube twisted yarns Ta and Tb.
  • the twisted bobbins 3a and 3b were rotated at a speed of 0.1 lmZ, and the twisted yarn was fed from the bobbin 3a to the bobbin 3b.
  • two carbon nanotube twisted yarns were connected 10 times, and 6 times, the first connection work was successful without any problems. The remaining four attempts succeeded in connecting multiple times.
  • Example 20 In the connection operation shown in Example 20, 0.5 ml of ethanol was added to the “overlap” of the overlapping portion. After air drying, the overlap portion was twisted in the same manner as in Example 20, and then the carbon nanotube twisted yarn was wound around the winding bobbin 3b. Using this method, two carbon nanotube twisted yarns were connected 10 times, and 8 times without any problems in the first connection work.
  • a carbon nanotube twisted yarn was wound around the winding bobbin 3b in the same manner as in Example 21 except that methanol was used instead of ethanol.
  • Example 23 The carbon nanotube twisted yarn was wound around the winding bobbin 3b in the same manner as in Example 21 except that isopronool V was used instead of ethanol.
  • a carbon nanotube twisted yarn was wound around the winding bobbin 3b in the same manner as in Example 21 except that acetone was used instead of ethanol.
  • a carbon nanotube twisted yarn was wound around the winding bobbin 3b in the same manner as in Example 21 except that methanol was used instead of ethanol.
  • a carbon nanotube twisted yarn was wound around the winding bobbin 3b in the same manner as in Example 21 except that tetrahydrofuran was used instead of ethanol.
  • the carbon nanotube twisted yarn was wound around the winding bobbin 3b in the same manner as in Example 21, except that dimethylformaldehyde was added instead of ethanol, and 100 ° C warm air was sent for 1 hour to dry.
  • the carbon nanotube twisted yarn was wound around the winding bobbin 3b in the same manner as in Example 21 except that dimethylacetamide was added instead of ethanol, and dried by sending warm air of 100 ° C for 1 hour.
  • the carbon nanotube twisted yarn was wound around the winding bobbin 3b in the same manner as in Example 21 except that water was given in place of ethanol and hot air at 100 ° C was sent for 5 minutes to dry.
  • carbon nanotubes were pulled out about 1 cm in width by 2 mm using a drawing tool 21 having a wide-width portion coated with an adhesive at the tip. Rake this with tweezers It was. The scooped 2 mm ⁇ 8 mm carbon nanotube sheet was gently placed on the “overlap” of the overlapping portion in the connection operation shown in Example 20, and the overlapping portion was covered. Thereafter, in the same manner as in Example 20, the overlapping portions were twisted and connected, and then the carbon nanotube twisted yarn was wound around the winding bobbin 3b. Using this method, two carbon nanotube twisted yarns were connected 10 times, and 8 times without any problems in the first connection work.
  • the carbon nanotube substrate obtained in the same manner as in Example 1 was held and fixed on the substrate holding device 6 of the fine carbon fiber twisted yarn manufacturing apparatus (FIGS. 6 and 7). Without rotating the extraction tool 21 having an ultrathin shaft portion having a diameter of 0.03 mm and a length force of S lmm, the ultrathin shaft portion 21a is stabbed into the side surface of the carbon nanotube assembly C on the substrate and allowed to enter 1 mm. And stopped. In this state, the extraction tool 21 was rotated at 20 rpm for 10 seconds, and then the extraction tool 21 was retracted at 0.1 mmZ seconds and separated from the substrate.
  • the ultrafine shaft-shaped portion of the drawing tool 21 is again entered into the aggregate of fine carbon fibers growing on the substrate, and the fine carbon fiber is drawn again as described above to stop the rotation of the drawing tool.
  • the substrate was rotated at 500 rpm, the carbon nanotube twisted yarn was scraped off and brought up to the top of the bobbin 3.
  • gently pull out the piece of fine carbon fiber twisted yarn remaining on the take-up bobbin take 1cm of “overlap” and place it tightly on the fine carbon fiber twisted yarn. It was.
  • the extraction tool was rotated around its rotation axis at 10 rpm, and the bobbin-side twisted yarn was wound around the extraction-tool-side twisted yarn.
  • the carbon nanotube substrate obtained in the same manner as in Example 1 was held and fixed on the substrate holding part 6 of the fine carbon fiber twisted yarn manufacturing apparatus (FIGS. 6 and 7). Without rotating the extraction tool 21 having the ultrathin shaft portion 21a having a diameter of 0.03 mm and a length of 1 mm, the ultrathin shaft portion is pierced into the side surface of the carbon nanotube assembly C on the substrate and allowed to enter 1 mm. Stopped. In this state, the extraction tool 21 was rotated at 20 rpm for 10 seconds, and then the extraction tool 21 was retracted by 0.1 mm Z seconds and separated from the substrate cover.
  • the substrate was rotated at lOOOOr pm to stop the rotation of the extraction tool 21 and moved above the take-up bobbin 3 by 0.1 lmZ. After winding the carbon nanotube twisted yarn and fixing it on the bobbin 3, the carbon nanotube twisted yarn was released from the drawing tool 21. Winding speed was taken up at 0 lmZ min., And thread breakage occurred when a twisted body of continuous twisted yarn of lOOOOOTZm per lm over 1.5 m was produced. Stopped spinning.
  • the ultra-thin shaft portion 21a of the extraction tool 21 is entered into the aggregate of the fine carbon fibers grown on the substrate again, and the fine carbon fiber is pulled out again as described above to stop the rotation of the extraction tool.
  • the substrate was rotated at 500 rpm to wind up the carbon nanotube twisted yarn and brought it to the top of the bobbin 3.
  • gently pull out the piece of fine carbon fiber twisted yarn remaining on the take-up bobbin take 1cm of “overlapping” and stretch it tightly and place it gently on the fine carbon fiber twisted yarn. It was.
  • the drawing tool was rotated at lOrpm, and the piece of the twisted yarn on the bobbin 3 side was wound on the twisted yarn on the drawing tool side.
  • Example 31 when connecting the fine carbon material fiber drawn from the carbon nanotube on the substrate and the fine carbon material twisted yarn on the take-up bobbin, as shown in FIG.
  • 0.5 ml of ethyl acetate was added to the part covered with this sheet.
  • the carbon nanotube twisted yarn was wound around the winding bobbin 3b in the same manner as in Example 31.
  • two carbon nanotube twisted yarns were connected 10 times, and 9 times, the first connection work was successful without any problems.
  • a twisted carbon nanotube was wound around the winding bobbin 3b in the same manner as in Example 34 except that acetonitrile was added instead of ethyl acetate and air-dried.
  • a fine carbon fiber twisted yarn can be produced continuously and homogeneously, and the resulting fine carbon fiber twisted yarn is a protective material, bulletproof 'protective clothing requiring high strength. It can be used for applications such as wiring materials for industrial materials, textile materials for industrial materials, various textile products for sports, electric wires that require electrical conductivity, and various electrical products.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Textile Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Nanotechnology (AREA)
  • Thermal Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Composite Materials (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Materials Engineering (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Inorganic Fibers (AREA)
  • Treatment Of Fiber Materials (AREA)

Abstract

Selon l'invention, une ficelle constituée de fines fibres de carbone est fabriquée en réalisant un dépôt chimique en phase vapeur de fines fibres de carbone sur un substrat pour obtenir ainsi un assemblage de fines fibres de carbone et, tout en étirant en continu les fines fibres de carbone à partir de l'assemblage sur le substrat et en les enroulant autour d'une bobine, en faisant tourner au moins le substrat ou la bobine de manière à entortiller l'enroulement de fines fibres de carbone autour de la bobine.
PCT/JP2007/057974 2006-04-13 2007-04-11 Procédé et appareil de fabrication continue d'une ficelle de fines fibres de carbone, et ficelle de fines fibres de carbone Ceased WO2007119747A1 (fr)

Priority Applications (1)

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WO2008059889A1 (fr) * 2006-11-15 2008-05-22 Sonac Incorporated Structure collectrice de nanotubes de carbone multicouches
WO2009054422A1 (fr) * 2007-10-23 2009-04-30 Public University Corporation Osaka Prefecture University Procédé de fabrication de fil de microfibres de carbone, substrat pour la formation de microfibres de carbone en vue d'une utilisation dans le procédé et fil de microfibres de carbone obtenu par le procédé
JP2010116632A (ja) * 2008-11-11 2010-05-27 Osaka Prefecture 微細炭素繊維撚糸の製造装置及び製造方法
JP2010116318A (ja) * 2008-11-14 2010-05-27 Qinghua Univ カーボンナノチューブ構造体の引伸し方法
JP2010281025A (ja) * 2009-06-04 2010-12-16 Qinghua Univ カーボンナノチューブ線状構造体の製造方法
JP2011046604A (ja) * 2009-08-28 2011-03-10 Qinghua Univ カーボンナノチューブ線状構造体の製造方法
JP2011153392A (ja) * 2010-01-28 2011-08-11 Osaka Prefecture カーボンナノチューブ撚糸およびその製造方法
JP2011208296A (ja) * 2010-03-29 2011-10-20 Osaka Prefecture カーボンナノチューブ撚糸およびその製造方法
US8758540B2 (en) 2008-11-14 2014-06-24 Tsinghua University Method for laying carbon nanotube film
US8815398B2 (en) 2008-11-14 2014-08-26 Tsinghua University Carbon nanotube film
US8815397B2 (en) 2008-11-14 2014-08-26 Tsinghua University Carbon nanotube film
JP2014172126A (ja) * 2013-03-08 2014-09-22 Taimei Chemicals Co Ltd ブラシ状砥石の製造方法
JP2014530964A (ja) * 2011-09-07 2014-11-20 テイジン・アラミド・ビー．ブイ． 低抵抗率、高弾性率、および／または高熱伝導率を有するカーボンナノチューブ繊維、ならびに、繊維紡糸ドープを用いた紡糸による当該繊維の製造方法
WO2015011760A1 (fr) * 2013-07-22 2015-01-29 村田機械株式会社 Dispositif de fabrication de fil
WO2015011770A1 (fr) * 2013-07-22 2015-01-29 村田機械株式会社 Dispositif de fabrication de fil
WO2015011772A1 (fr) * 2013-07-22 2015-01-29 村田機械株式会社 Dispositif de fabrication de fils
WO2015011771A1 (fr) * 2013-07-22 2015-01-29 村田機械株式会社 Dispositif de fabrication de fil
TWI488802B (zh) * 2012-12-27 2015-06-21 Beijing Funate Innovation Tech 奈米碳管線鋪設設備
JP2017137594A (ja) * 2016-02-04 2017-08-10 日立造船株式会社 カーボンナノチューブ撚糸の製造方法およびカーボンナノチューブ撚糸
JPWO2019083039A1 (ja) * 2017-10-26 2020-11-19 古河電気工業株式会社 カーボンナノチューブ複合線、カーボンナノチューブ被覆電線及びワイヤハーネス
JPWO2019083038A1 (ja) * 2017-10-26 2020-12-03 古河電気工業株式会社 カーボンナノチューブ複合線、カーボンナノチューブ被覆電線及びワイヤハーネス
CN113532981A (zh) * 2021-06-17 2021-10-22 北京工业大学 一种可调配重的纤维平衡加捻辅助装置及相关实验方法
CN114572765A (zh) * 2022-02-23 2022-06-03 武汉市碳翁科技有限公司 一种碳纳米管加捻收集装置及使用方法
JP2022159032A (ja) * 2021-04-02 2022-10-17 トヨタ自動車株式会社 カーボンナノチューブからなる紡績糸の製造方法及びカーボンナノチューブからなる紡績糸

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JP2004149996A (ja) * 2002-11-01 2004-05-27 Bridgestone Corp 炭素繊維糸及びその製造方法
JP2004190166A (ja) * 2002-12-10 2004-07-08 Carbon Nanotech Research Institute 微細炭素繊維の回収方法及び装置並びに微細炭素繊維巻回体
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Cited By (47)

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Publication number Priority date Publication date Assignee Title
WO2008059889A1 (fr) * 2006-11-15 2008-05-22 Sonac Incorporated Structure collectrice de nanotubes de carbone multicouches
WO2009054422A1 (fr) * 2007-10-23 2009-04-30 Public University Corporation Osaka Prefecture University Procédé de fabrication de fil de microfibres de carbone, substrat pour la formation de microfibres de carbone en vue d'une utilisation dans le procédé et fil de microfibres de carbone obtenu par le procédé
JP2009102763A (ja) * 2007-10-23 2009-05-14 Osaka Prefecture 微細炭素繊維糸の製造方法、該製造方法に用いる微細炭素繊維形成基板、及び、前記製造方法によって製造された微細炭素繊維糸
JP2010116632A (ja) * 2008-11-11 2010-05-27 Osaka Prefecture 微細炭素繊維撚糸の製造装置及び製造方法
US8815397B2 (en) 2008-11-14 2014-08-26 Tsinghua University Carbon nanotube film
US8758540B2 (en) 2008-11-14 2014-06-24 Tsinghua University Method for laying carbon nanotube film
US8795461B2 (en) 2008-11-14 2014-08-05 Tsinghua University Method for stretching carbon nanotube film
US8815398B2 (en) 2008-11-14 2014-08-26 Tsinghua University Carbon nanotube film
JP2010116318A (ja) * 2008-11-14 2010-05-27 Qinghua Univ カーボンナノチューブ構造体の引伸し方法
JP2010281025A (ja) * 2009-06-04 2010-12-16 Qinghua Univ カーボンナノチューブ線状構造体の製造方法
JP2011046604A (ja) * 2009-08-28 2011-03-10 Qinghua Univ カーボンナノチューブ線状構造体の製造方法
JP2011153392A (ja) * 2010-01-28 2011-08-11 Osaka Prefecture カーボンナノチューブ撚糸およびその製造方法
JP2011208296A (ja) * 2010-03-29 2011-10-20 Osaka Prefecture カーボンナノチューブ撚糸およびその製造方法
JP2014530964A (ja) * 2011-09-07 2014-11-20 テイジン・アラミド・ビー．ブイ． 低抵抗率、高弾性率、および／または高熱伝導率を有するカーボンナノチューブ繊維、ならびに、繊維紡糸ドープを用いた紡糸による当該繊維の製造方法
TWI488802B (zh) * 2012-12-27 2015-06-21 Beijing Funate Innovation Tech 奈米碳管線鋪設設備
JP2014172126A (ja) * 2013-03-08 2014-09-22 Taimei Chemicals Co Ltd ブラシ状砥石の製造方法
CN105358750A (zh) * 2013-07-22 2016-02-24 村田机械株式会社 纱线制造装置
TWI601859B (zh) * 2013-07-22 2017-10-11 Murata Machinery Ltd Yarn manufacturing equipment
WO2015011771A1 (fr) * 2013-07-22 2015-01-29 村田機械株式会社 Dispositif de fabrication de fil
WO2015011770A1 (fr) * 2013-07-22 2015-01-29 村田機械株式会社 Dispositif de fabrication de fil
CN105339538A (zh) * 2013-07-22 2016-02-17 村田机械株式会社 纱线制造装置
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WO2015011760A1 (fr) * 2013-07-22 2015-01-29 村田機械株式会社 Dispositif de fabrication de fil
JP6015861B2 (ja) * 2013-07-22 2016-10-26 村田機械株式会社 糸製造装置
TWI561695B (fr) * 2013-07-22 2016-12-11 Murata Machinery Ltd
JPWO2015011772A1 (ja) * 2013-07-22 2017-03-02 村田機械株式会社 糸製造装置
JPWO2015011771A1 (ja) * 2013-07-22 2017-03-02 村田機械株式会社 糸製造装置
EP3026158A4 (fr) * 2013-07-22 2017-06-14 Murata Machinery, Ltd. Dispositif de fabrication de fil
CN105339537B (zh) * 2013-07-22 2017-08-08 村田机械株式会社 纱线制造装置
US10472739B2 (en) 2013-07-22 2019-11-12 Murata Machinery Ltd. Yarn manufacturing device
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WO2015011772A1 (fr) * 2013-07-22 2015-01-29 村田機械株式会社 Dispositif de fabrication de fils
CN105339538B (zh) * 2013-07-22 2018-05-22 村田机械株式会社 纱线制造装置
TWI631248B (zh) * 2013-07-22 2018-08-01 村田機械股份有限公司 Yarn manufacturing device
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US10450678B2 (en) 2013-07-22 2019-10-22 Murata Machinery, Ltd. Yarn manufacturing device
JP2017137594A (ja) * 2016-02-04 2017-08-10 日立造船株式会社 カーボンナノチューブ撚糸の製造方法およびカーボンナノチューブ撚糸
JPWO2019083039A1 (ja) * 2017-10-26 2020-11-19 古河電気工業株式会社 カーボンナノチューブ複合線、カーボンナノチューブ被覆電線及びワイヤハーネス
JPWO2019083038A1 (ja) * 2017-10-26 2020-12-03 古河電気工業株式会社 カーボンナノチューブ複合線、カーボンナノチューブ被覆電線及びワイヤハーネス
JP7214645B2 (ja) 2017-10-26 2023-01-30 古河電気工業株式会社 カーボンナノチューブ複合線、カーボンナノチューブ被覆電線及びワイヤハーネス
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JP7783102B2 (ja) 2021-04-02 2025-12-09 トヨタ自動車株式会社 カーボンナノチューブからなる紡績糸の製造方法及びカーボンナノチューブからなる紡績糸
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