WO2018199355A1 - Spinning apparatus for producing two-ingredient composite nanofibers, and method for producing two-ingredient composite nanofibers using same - Google Patents

Abstract

The spinning apparatus for producing two-ingredient composite nanofibers, according to the present invention, comprises: (i) a spinning tube (T) which comprises a spinning tube body (Ta) having a cylindrical or conical shape, a polygonal tubular hollow part (Tb) formed, along the length direction of the spinning tube body (Ta), inside the spinning tube body (Ta), and nozzles (Tc) installed in respective positions facing the respective vertex areas of the polygonal tubular hollow part (Tb), along the length direction of the spinning tube body (Ta), from a point at a predetermined distance (h) downwards from the upper surface of the spinning tube body (Ta) to the lower surface of the spinning tube body (Ta), the spinning tube (T) having a structure in which each of the nozzles (Tc) is installed so as to form a pair with and face one vertex area selected from among the vertex areas of the polygonal tubular hollow part (Tb) and in which the vertex areas of the polygonal tubular hollow part (Tb) are in contact with the outer circumferential surface of the spinning tube body (Ta); and (ii) a spinning solution distribution tube (1) which is connected to the spinning tube (T) and has a cylindrical or conical shape having a double tubular structure. The present invention uses an electrostatic force and a centrifugal force at the same time, thus can produce two-ingredient composite nanofibers with high productivity (discharge volume), facilitates solvent volatilization and recovery, effectively prevents a (drop) phenomenon in which a spinning solution drops onto a collector in a solution state, not a fibrous state, and thereby improves the quality of a two-ingredient composite nanofiber web.

Description

Spinning apparatus for producing two-component composite nanofibers, and a method for manufacturing two-component composite nanofibers using the same

The present invention relates to a spinning device for producing two-component composite nanofibers and a method of manufacturing a two-component composite nanofibers using the same. More specifically, the present invention can produce a high quality two-component composite nanofiber web with high productivity per unit time and processability. The present invention relates to a spinning tube, and also to a method for producing a high quality two-component composite nanofiber web using the spinning tube.

The term "bicomponent composite nanofiber" of the present invention is used to mean both core-sheath composite nanofibers and side-by-side composite nanofibers, and the "core-sheath composite nanofibers" The term is used with the meaning including eccentric core-cis type composite nanofibers.

As a conventional technique for producing core-sheath composite nanofibers, a method of electrospinning the sheath-forming spinning solution and the core-forming spinning solution through a sheath / core type (double tube type) nozzle with only electrostatic force has been widely used.

However, in the conventional method, since the electrospinning is performed only depending on the electrostatic force, the discharge amount per nozzle unit hole per unit time is very low at the level of 0.01 g, which leads to difficulty in mass production.

In general, the production of nanofibers through electrospinning is 0.1 ~ 1 g per hour and the solution discharge is very low, 1.0 ~ 5.0 mL per hour [D. H. H. Renecker et al., Nanotechnology 2006, VOl 17, 1123].

Specifically, Nano Letters, 2007, Vol7 (4) 1081, as another conventional technique, is a SnO ₂ in one nozzle having an internal diameter of 0.4 mm among the composite nozzles in which two nozzles are arranged side by side. Feed the precursor solution and TiO ₂ to the remaining nozzles with an internal diameter of 0.7 mm A method of manufacturing TiO ₂ / SnO ₂ composite inorganic nanofibers in a side-by-side form by electrospinning after supplying a precursor solution is disclosed. However, since the conventional method depends only on electrostatic force, the discharge amount per nozzle per unit time This very low productivity is low, there was a problem that the nozzle replacement and cleaning is difficult.

Polymer, 2003, Vol. 44, 6353 uses a teflon needle with an internal diameter of 0.7 mm and a thickness of 0.2 mm, which is used to simultaneously pump two solutions with a cylinder pump so that the two solutions merge at the needle section. Although a method of producing a composite side-side composite nanofiber by electrospinning by supplying a platinum electrode in a solution is disclosed. However, since the conventional method also depends only on electrostatic force, the discharge amount per nozzle per unit time is very low, resulting in high productivity. Falling, there was a problem that the nozzle replacement and cleaning is difficult.

In addition, in the conventional methods, a phenomenon in which the spinning solution falls on the collector in a solution state that is not fibrous (hereinafter, referred to as a "droplet phenomenon") is severely generated, thereby degrading the quality of the two-component composite nanofiber web.

The present invention can minimize the work risk due to high voltage application, can greatly improve the productivity of the two-component composite nanofibers, and prevent the droplet phenomenon when manufacturing nanofibers to improve the quality of the two-component composite nanofiber web It is to provide a spinning device for producing a two-component composite nanofiber that can be improved.

Another object of the present invention is to provide a method for producing a high quality two-component composite nanofibers with high productivity using the spinning tube for producing a two-component composite nanofibers.

In order to achieve the above object, in the present invention, the spinning device for producing a two-component composite nanofiber is (i) a spinning tube body (Ta) having one form selected from a cylindrical shape and a conical shape, and inside the spinning tube body Ta. Polygon tube-shaped hollow portion (Tb) formed along the longitudinal direction of the radiation tube body (Ta) and the radiation tube body from a point away from the upper surface of the radiation tube body (Ta) by a predetermined distance (h) in the lower direction It consists of nozzles (Tc) which are provided at each of the positions facing the corners of the polygonal tube-shaped hollow portion (Tb) along the longitudinal direction of the radiating tube body (Ta) to the lower surface of (Ta), Each of the nozzles Tc is provided to face each other in pair with one of the corner portions selected from the corner portions of the polygonal tube-shaped hollow portion Tb, and the The radiating tube (T) having a structure in which the edge portion is in contact with the outer circumferential surface of the radiating tube body (Ta) and (ii) connected to the radiating tube (T), one of the cylindrical and conical selected from the double tube structure Consists of a spinning liquid distribution tube (1) having a form.

In addition, the present invention (i) by rotating the spinning tube (T) and the spinning liquid distribution tube (1) a high voltage to the spinning tube (T) and the spinning liquid distribution tube (1) with a voltage generator (6) And then (ii) supplying the first spinning solution into the outer tube 1c constituting the double tube structure of the spinning liquid distribution tube 1 and at the same time forming the spinneret distribution tube 1 of the double tube structure. The second spinning solution different from the first spinning solution is supplied into the tube 1b, and (iii) the first spinning solution supplied into the outer tube 1c of the spinning liquid distribution tube forms the nozzle forming the spinning tube T. (Tc), and the second spinning solution supplied into the inner tube (1b) of the spinning liquid distribution tube is supplied to the polygonal tubular hollow portion (Tb) forming the spinning tube (T), and then (iv) the nozzle ( Spinning the first spinning solution supplied to Tc) and the second spinning solution supplied to the polygonal tube-shaped hollow part Tb constituting the spinning tube T using centrifugal force and electric force Probe (T) to the radiation by forming polygonal tubular hollow portion (Tb) collector with a high voltage hanging by the voltage generating unit 6 via the edges of the (second) direction to produce a two-component composite nanofiber.

In the present invention, since the electrostatic force and centrifugal force are used simultaneously, the bicomponent composite nanofibers can be manufactured with high productivity (discharge amount), solvent volatilization and recovery are easy, and the spinning solution falls on the collector in a solution state instead of fibrous. It also effectively prevents (drop phenomenon) to improve the quality of the two-component composite nanofiber web.

1 is a process schematic diagram of producing a bicomponent composite nanofiber according to the present invention.

FIG. 2 is an enlarged schematic view of the radiation tube T in FIG. 1. FIG.

Figure 3 is a schematic diagram showing the mechanism in which the core-sheath bicomponent composite nanofibers are formed in the spinning tube (T) for producing a bicomponent composite nanofiber of the present invention.

4 to 5 are schematic diagrams showing a state in which a nozzle Tc is formed at a corner of a polygonal tube-shaped hollow Tb formed in the spinning solution distribution tube 1 of the present invention.

Figure 6 is a scanning electron micrograph of the core-sheath bicomponent composite nanofibers prepared in Example 1.

7 is a scanning electron micrograph of the hollow carbon nanofibers prepared in Example 2;

8 is a scanning electron micrograph of the core-sheath bicomponent composite nanofiber prepared in Example 3. FIG.

9 is a scanning electron micrograph of the hollow carbon nanofibers prepared in Example 4;

10 is a scanning electron micrograph of the core-sheath bicomponent composite nanofiber prepared in Example 5. FIG.

11 is a scanning electron micrograph of the hollow carbon nanofibers prepared in Example 6.

12 is a scanning electron micrograph of a core-sheath bicomponent composite nanofiber prepared in Comparative Example 1. FIG.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

Spinning apparatus for producing a two-component composite nanofiber according to the present invention, as shown in Figure 1 (i) a spinning tube body (Ta) having one form selected from cylindrical and conical, the inside of the spinning tube body (Ta) The radiation tube from a point away from the polygonal tube-shaped hollow portion (Tb) formed along the longitudinal direction of the radiation tube body (Ta) and a predetermined distance (h) in the lower direction from the upper surface of the radiation tube body (Ta) It consists of nozzles (Tc) which are provided at each of the positions facing the corners of the polygonal tube-shaped hollow portion (Tb) along the longitudinal direction of the radiation tube body (Ta) to the lower surface of the body (Ta), Each of the nozzles Tc is provided to face each other in pairs with one of the corner portions selected from the corner portions of the polygonal tube-shaped hollow portion Tb, and the edge portion of the polygonal tube-shaped hollow portion Tb. Spinning tube (T) having a structure in which the contact with the outer peripheral surface of the spinning tube body (Ta); And (ii) a spinning solution distribution tube (1) connected to the spinning tube (T) and having one of a cylindrical and conical shape having a double pipe structure.

Spinning tube (T) along the longitudinal direction of the radiating tube body (Ta) from a point away from the upper surface of the radiating tube body (Ta) by a predetermined distance (h) in the lower direction to the lower surface of the radiating tube body (Ta) The nozzles Tc are provided at positions facing the corner portions of the polygonal tubular hollow portion Tb constituting each other.

Each of the nozzles Tc is provided to face each other in pair with one of the corner portions selected from the corner portions of the polygonal tubular hollow portion Tb.

The spinning tube (T) and the spinning liquid distribution tube (1) may be integrally manufactured and formed from the beginning, or may be separately manufactured and then connected to each other by assembling.

Next, looking at the manufacturing method of the two-component composite nanofiber according to the present invention, as shown in Figure 1 (i) a voltage generator while rotating the spinning tube (T) and the spinning solution distribution tube (1) (6) applying a high voltage to the spinning tube (T) and the spinning liquid distribution tube (1), and (ii) into the outer tube (1c) forming the spinning liquid distribution tube (1) of the double pipe structure; While supplying the spinning solution and supplying a second spinning solution different from the first spinning solution into the inner tube 1b constituting the spinning liquid distribution tube 1 of the double pipe structure, and (iii) The first spinning solution supplied into the outer tube 1c is supplied to the nozzle Tc forming the spinning tube T, and the second spinning solution supplied into the inner tube 1b of the spinning liquid distribution tube is supplied to the spinning tube T. After supplying to the polygonal tubular hollow portion (Tb) forming a), and (iv) forms a spinning tube (T) and the first spinning solution supplied to the nozzle (Tc). The second spinning solution supplied to the rectangular tube-shaped hollow portion Tb is formed by the voltage generator 6 through the corner portion of the polygonal tube-shaped hollow portion Tb forming the spinning tube T by using centrifugal force and electric force. Spinning toward the collector (2) subjected to high voltage to produce a two-component composite nanofiber.

At this time, the second spinning solution is supplied into the inner tube 1b constituting the spinning solution distribution tube using the second spinning solution supply pipe 3a, and the spinning solution distribution tube is formed using the first spinning solution supply pipe 3b. After supplying the first spinning solution into the outer tube 1c, the first spinning solution supplied into the outer tube 1c of the spinning solution distribution tube is supplied to the nozzle Tc forming the spinning tube T, and the spinning solution The second spinning solution supplied into the inner tube 1b of the distribution tube is supplied to the polygonal tubular hollow portion Tb constituting the spinning tube T.

3 is a first spinning solution (A: spinning solution for forming a core) and a second spinning solution (B: for forming a sheath) supplied to the corner portion Tb 'of the polygonal tubular hollow portion Tb constituting the spinning tube. It is a schematic diagram showing the flow state of the spinning solution) and the mechanism by which the core-cis type bicomponent composite nanofibers are formed.

As shown in FIG. 3, the first spinning solution (A: spinning solution for forming a core) has a corner portion of a polygonal tubular hollow part constituting the spinning tube through a nozzle (Tc) having a relatively small diameter constituting the spinning tube ( Tb '), and the second spinning solution (B: spinning solution for forming a sheath) is a polygonal tubular hollow part constituting the spinning tube through a polygonal tubular hollow part (Tb) of a relatively large diameter spinning tube. Since it is supplied to the corner portion (Tb '), it is possible to accurately control the cross-sectional shape of the bicomponent composite nanofibers.

The manufacturing mechanism of the core-sheath bicomponent composite nanofiber according to the present invention described above is completely different from the mechanism for producing the core-sheath bicomponent composite nanofiber by arranging two nozzles in a core-sheath form. .

In the present invention, since two-component composite nanofibers are simultaneously manufactured in a plurality of corner portions (Tb '), the productivity is greatly improved as compared with the conventional nozzle type method, and the shape of the spinning tube (T) is changed to 2 Component composite nanofibers can be prepared.

The two-component composite nanofibers are core-sheath type composite nanofibers or side by side type composite nanofibers, and the core-sheath composite fiber is an eccentric core-sheath type. It may be a composite nanofiber.

In one embodiment, a core forming spinning solution (first spinning solution) is supplied into the nozzle Tc constituting the spinning tube T, and into the polygonal tubular hollow portion Tb constituting the spinning tube T. Supplies a spinning solution for forming a sheath (second spinning solution) to produce a core-cis-type composite nanofiber.

At this time, as shown in Figures 2 and 5 from the upper surface of the radiating tube body (Ta) to a lower distance of a predetermined distance (h) in the downward direction from the radiating tube body (Ta) to the lower surface of the radiating tube body (Ta) When using the spinning tube (T) having three nozzles (Tc) in the position facing each corner of the polygonal tube-shaped hollow (Tb) constituting the spinning tube (T) along the longitudinal direction of Three core-cis type composite nanofibers can be produced.

As another embodiment, as shown in FIG. 4, when the distance d between the corner vertex of the polygonal tubular hollow part Tb constituting the spinning tube T and the nozzle Tc is properly adjusted, Side-type composite nanofibers can be produced.

As an embodiment, one of two different polymer solutions is used as the first spinning solution supplied into the nozzle Tc constituting the spinning tube T, and the other polygon is constituting the spinning tube T. The core-sheath composite nanofibers or the side-by-side composite nanofibers are manufactured using the second spinning solution supplied into the tubular hollow portion (Tb).

The hollow core may be prepared by dissolving the core of the core-sheath composite nanofiber prepared as described above with an organic solvent or the like.

As another embodiment, one of two precursor solutions containing different inorganic materials is used as the first spinning solution supplied into the nozzle Tc constituting the spinning tube T, and the remaining one spinning tube is used. A bicomponent composite inorganic nanofiber is produced using the second spinning solution supplied into the polygonal tubular hollow portion Tb constituting (T).

When the two-component composite inorganic nanofibers prepared as described above are stabilized and carbonized, a single-component or two-component inorganic nanofiber is manufactured.

As another embodiment, a polygonal tube using the polymer solution as the first spinning solution supplied into the nozzle Tc constituting the spinning tube T, and the precursor solution containing the inorganic material constituting the spinning tube T Using the second spinning solution supplied into the upper hollow portion (Tb) to produce a core-cis-type composite nanofibers composed of a polymer of the core component and the inorganic component of the sheath component.

When the core component of the core-sheath composite nanofibers prepared as described above is dissolved in an organic solvent or removed by carbonization, an inorganic hollow fiber is prepared.

As another embodiment, a precursor solution containing an inorganic material is used as the first spinning solution supplied into the nozzle Tc constituting the spinning tube T, and the polymer solution is a polygonal tube constituting the spinning tube T. By using the second spinning solution supplied into the upper hollow portion (Tb) to prepare a core-sheath composite nanofibers, the core component is an inorganic material and the sheath component is composed of a polymer.

Looking at an embodiment of manufacturing hollow carbon nanofibers using the spinning device of the present invention, using a water-soluble polyvinyl alcohol solution as the first spinning solution supplied into the nozzle (Tc) constituting the spinning tube (T), poly The acrylonitrile solution is used as a second spinning solution supplied into the polygonal tubular hollow portion (Tb) constituting the spinning tube (T) to produce a core-sheath composite nanofiber, and then a water-soluble polyvinyl to form a core portion. The alcohol is removed with water to prepare hollow polyacrylonitrile fibers, and then the hollow polyacrylonitrile fibers are stabilized and carbonized to prepare hollow carbon nanofibers.

In this case, porous carbon nanofibers are manufactured by using a spinning tube provided with two or more nozzles Tc at each corner portion of the polygonal tubular hollow portion Tb constituting the spinning tube T.

The hollow carbon nanofibers or porous carbon nanofibers prepared as described above are useful as filter materials, secondary battery membrane materials, electrode materials, high functional clothing materials, drug delivery materials, and the like.

Hereinafter, the present invention will be described in more detail with reference to Examples.

However, the present invention is not limited by the following examples.

Example  One

Polymethyl methacrylate was dissolved in dimethylformamide as a solvent to prepare a polymethyl methacrylate solution (first spinning solution) having a solid content of 10% by weight.

Polyacrylonitrile was dissolved in dimethylformamide as a solvent to prepare a polyacrylonitrile solution (second spinning solution) having a solid content of 12% by weight.

Next, as shown in FIG. 1, (i) a cylindrical radiating tube body Ta having an outer diameter of 45 mm and a length of 8 mm, and formed along the longitudinal direction of the radiating tube body Ta. Longitudinal direction of the radiating tube main body Ta from the point of the tube-shaped hollow part Tb and 3 mm (h) down from the upper surface of the said radiating tube main body Ta to the lower surface of the radiating tube main body Ta It consists of a nozzle (Tc) of 0.9 mm in diameter installed in a position facing each of the corner portions of the polygonal tubular hollow portion (Tb) along, the corner portions of the pentagonal tubular hollow portion (Tb) is radiated Spinning tube (T) having a structure in contact with the outer circumferential surface of the tube body (Ta) and (ii) Spinning liquid distribution tube which is connected to the spinning tube (T), and having a cylindrical shape and a double tube structure ( 1) the spinning tube (T) and spinning with a voltage generator (6) while rotating at 350rpm A voltage of 35 kV was applied to the distribution tube 1, and then the spinning tube T was supplied to the nozzle Tc having a diameter of 0.9 mm and the polymethyl methacrylate solution (first spinning solution) was supplied. After supplying the polyacrylonitrile solution (second spinning solution) into the pentagonal tubular hollow portion (Tb) forming (T), the pentagonal tubular hollow constituting the spinning tube (T) using centrifugal force and electric force. The supplied spinning solution through the corner portion of the portion (Tb) was electrospun in the direction of the collector 2 subjected to a voltage of 35 kV to prepare a core-sheath bicomponent composite nanofiber. The polyacrylonitrile solution (second spinning solution) as a polymer solution was supplied at 0.25cc per minute and the polymethylmethacrylate solution (first spinning solution) was supplied at 0.20cc per minute. At this time, the distance between the collector 2 and the spinning tube 1 was 35 cm.

Scanning electron micrographs of the core-cis type bicomponent composite nanofibers prepared as described above were as shown in FIG. 6.

FIG. 6 shows that two-component composite nanofibers composed of a polymethyl methacrylate component as a core component and a polyacrylonitrile as a cis component are uniformly formed well.

Example  2

The core-cis type bicomponent composite nanofiber prepared in Example 1 was stabilized at 220 ° C. for 1 hour and 30 minutes, and then carbonized at 1,500 ° C. under nitrogen atmosphere to remove polymethyl methacrylate as a core component. Nanofibers were prepared. Scanning electron micrographs of the prepared hollow carbon nanofibers were as shown in FIG. 7. 7 shows that the hollow part is well formed.

Example  3

Cores in the same manner as in Example 1 except that the nozzle Tc is installed such that the upper surface of the nozzle Tc is positioned at a position 6 mm (h) downward from the upper surface of the spinning tube body Ta. A cis-type bicomponent composite nanofiber was prepared. Scanning electron micrographs of the prepared core-sheath bicomponent composite nanofibers were as shown in FIG. 8.

Example  4

The core-cis-type bicomponent composite nanofiber prepared in Example 3 was stabilized at 220 ° C. for 1 hour 30 minutes, and then carbonized at 1,500 ° C. under nitrogen atmosphere to remove the polymethylmethacrylate as a core component. Nanofibers were prepared. Scanning electron micrographs of the prepared hollow carbon nanofibers were as shown in FIG. 9. 9 shows that the hollow part is well formed.

Example  5

Cores in the same manner as in Example 1 except that the nozzle Tc is installed such that the upper surface of the nozzle Tc is positioned at a position 9 mm (h) downward from the upper surface of the spinning tube body Ta. A cis-type bicomponent composite nanofiber was prepared. Scanning electron micrographs of the prepared core-sheath bicomponent composite nanofibers were as shown in FIG. 10.

Example  6

The core-cis-type bicomponent composite nanofiber prepared in Example 5 was stabilized at 220 ° C. for 1 hour 30 minutes, and then carbonized at 1,500 ° C. under nitrogen atmosphere to remove the polymethylmethacrylate as a core component. Nanofibers were prepared. Scanning electron micrographs of the prepared hollow carbon nanofibers were as shown in FIG. 11. 11 shows that the hollow part is well formed.

Comparative Example  One

In other words, the distance h from which the upper surface of the nozzle Tc is separated from the upper surface of the radiation tube body Ta is positioned so that the upper surface of the nozzle Tc is positioned at the same position as the upper surface of the radiation tube body Ta. A core-sheath bicomponent composite nanofiber was produced in the same manner as in Example 1 except that the nozzle Tc was set to 0 mm. The core-cis-type bicomponent composite nanofibers were stabilized at 220 ° C. for 1 hour and 30 minutes, and then carbonized at 1,500 ° C. under a nitrogen atmosphere to prepare hollow carbon nanofibers. The prepared hollow carbon nanofiber scanning electron micrographs were as shown in FIG. 12.

In FIG. 12, it can be seen that the fiber is formed by separating the polymethyl methacrylate, which is a core part, and the polyacrylonitrile, which is a cis part, but separated into individual fibers. The reason is that each polymer is manufactured in the form of nanofibers because there is no time for the two polymers to bind to each other. 12 shows one part of the hollow carbon nanofibers, but the hollow carbon nanofibers are not formed entirely of polyacrylonitrile.

* Explanation of Codes *

T: Spinning Tube

Ta: main body of the spinning tube

Tb is the hollow tube-shaped hollow part of the spinning tube

Tc: nozzle

1: spinning liquid distribution tube

1a: Main body of spinning liquid distribution tube

1b: inner tube of spinning liquid distribution tube

1c: Outer tube of spinning liquid distribution tube

2: collector

3: spinning solution supply pipe

3a: second spinning solution (spinning solution for forming sheath) supply pipe

3b: first spinning solution (spinning solution for core formation) supply pipe

4: pump for supplying the first spinning solution (spinning solution for core formation)

5: pump for supplying the second spinning solution (the spinning solution for forming the sheath)

6: voltage generator

F: Bicomponent composite nanofiber

Fc: Core part of bicomponent composite nanofiber

Fs: Sheath part of bicomponent composite nanofiber

d: distance between the nozzle Tc and the corner vertex of the polygonal tubular hollow portion Tb closest to the nozzle.

A: 1st spinning solution (spinning solution for core formation)

B: second spinning solution (spinning solution for forming a sheath)

Tb ': Hollow corner of polygonal tube of spinning tube

h: distance from the upper surface of the spinning tube body Ta to the upper surface of the nozzle Tc

The present invention can be used to produce high quality bicomponent composite nanofibers with high productivity.

Claims (11)

(i) a spinning tube body Ta having one of cylindrical and conical shapes, and a polygonal tubular hollow formed along the longitudinal direction of the spinning tube main Ta inside the spinning tube main Ta. Along the longitudinal direction of the radiating tube body Ta from the point Tb and the point away from the upper surface of the radiating tube body Ta by a predetermined distance h in the lower direction to the lower surface of the radiating tube body Ta Consists of nozzles (Tc) are provided at each of the positions facing each of the corner portion of the polygonal tubular hollow portion (Tb), each of the nozzles (Tc) each of the corner portion of the polygonal tubular hollow portion (Tb) Radiating tube (T) is provided to face each other in pairs with one of the selected corners, the corner portion of the polygonal tubular hollow portion (Tb) is in contact with the outer peripheral surface of the radiation tube body (Ta) ); And (ii) connected to the spinning tube (T), the spinning liquid distribution tube (1) having one of the shape selected from the cylindrical and conical of the double-tube structure; for manufacturing two-component composite nanofibers comprising a Spinning device. The spinneret according to claim 1, wherein the spinneret (T) and the spinneret dispensing tube (1) are integrally formed. The spinning apparatus (T) and the spinning liquid distribution tube (1) are each manufactured and connected to each other by assembling. (i) a spinning tube body Ta having one of cylindrical and conical shapes, and a polygonal tubular hollow formed along the longitudinal direction of the spinning tube main Ta inside the spinning tube main Ta. Along the longitudinal direction of the radiating tube body Ta from the point Tb and the point away from the upper surface of the radiating tube body Ta by a predetermined distance h in the lower direction to the lower surface of the radiating tube body Ta Consists of nozzles (Tc) are provided at each of the positions facing each of the corner portion of the polygonal tubular hollow portion (Tb), each of the nozzles (Tc) each of the corner portion of the polygonal tubular hollow portion (Tb) Radiating tube (T) is provided to face each other in pairs with one of the selected corners, the corner portion of the polygonal tubular hollow portion (Tb) is in contact with the outer peripheral surface of the radiation tube body (Ta) ); Is connected to the spinning tube (T), while rotating the spinning liquid distribution tubes (1) having one form selected from the cylindrical and conical of the double tube structure with the voltage generator (6) the spinning liquid distribution tube ( 1) and a high voltage were applied to the spinning tube (T), and (ii) the first spinning solution was supplied into the outer tube (1c) forming the spinning liquid distribution tube (1) of the double pipe structure and at the same time the double pipe structure A second spinning solution different from the first spinning solution is supplied into the inner tube 1b constituting the spinning liquid distribution tube 1, and then (iii) the first supplied into the outer tube 1c of the spinning liquid distribution tube. The spinning solution is supplied to the nozzle Tc forming the spinning tube T, and the second spinning solution supplied into the inner tube 1b of the spinning liquid distribution tube is a polygonal tubular hollow portion Tb forming the spinning tube T. ) And then (iv) the polygonal tubing forming the spinning tube (T) with the first spinning solution supplied to the nozzle (Tc) A high voltage is applied by the voltage generator 6 through the corner portion of the polygonal tube-shaped hollow part Tb forming the spinning tube T by using the centrifugal force and the electric force to supply the second spinning solution supplied to the upper hollow part Tb. Method for producing a two-component composite nanofiber, characterized in that the spinning in the direction of the collector (2) hanging. The method of claim 4, wherein when manufacturing the core-sheath composite nanofibers, the first spinning solution supplied into the nozzle Tc constituting the spinning tube T is a spinning solution for forming a core, and the spinning tube T is The second spinning solution supplied into the polygonal tubular hollow portion (Tb) constituting the manufacturing method of the two-component composite nanofibers, characterized in that the spinning solution for forming the sheath. The method of claim 4, wherein the bicomponent composite nanofiber is a bi-component composite nanofiber, characterized in that the form of one selected from the core-sheath composite nanofibers and Side by side type composite nanofibers Way. The method of claim 4, wherein the core-sheath composite nanofiber has a core portion of two or more forms. The method of claim 4, wherein the first spinning solution supplied into the nozzle (Tc) constituting the spinning tube (T) and the second spinning solution supplied into the polygonal tubular hollow portion (Tb) constituting the spinning tube (T) Method for producing a two-component composite nanofibers, characterized in that the different polymer solution. The method of claim 4, wherein the first spinning solution supplied into the nozzle (Tc) constituting the spinning tube (T) and the second spinning solution supplied into the polygonal tube-like hollow portion (Tb) constituting the spinning tube (T) Method for producing a two-component composite nanofibers, characterized in that the precursor solution containing different inorganic materials. The method of claim 4, wherein the first spinning solution supplied into the nozzle (Tc) constituting the spinning tube (T) is a polymer solution, the agent supplied into the polygonal tubular hollow portion (Tb) constituting the spinning tube (T). The two-use solution is a method for producing a two-component composite nanofiber, characterized in that the precursor solution containing an inorganic material. 5. The hollow tube-like hollow portion Tb of claim 4, wherein the first spinning solution supplied into the nozzle Tc constituting the spinning tube T is a precursor solution containing an inorganic material and forms the spinning tube T. 6. 2) The method of producing a two-component composite nanofiber, characterized in that the second spinning solution supplied into the polymer solution.

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