CN116892066A - A kind of polypropylene-based antistatic expanded filament and its preparation process - Google Patents
A kind of polypropylene-based antistatic expanded filament and its preparation process Download PDFInfo
- Publication number
- CN116892066A CN116892066A CN202310649808.1A CN202310649808A CN116892066A CN 116892066 A CN116892066 A CN 116892066A CN 202310649808 A CN202310649808 A CN 202310649808A CN 116892066 A CN116892066 A CN 116892066A
- Authority
- CN
- China
- Prior art keywords
- polypropylene
- parts
- whiskers
- based antistatic
- filament
- 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.)
- Granted
Links
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
- D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
- D01F6/44—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds as major constituent with other polymers or low-molecular-weight compounds
- D01F6/46—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds as major constituent with other polymers or low-molecular-weight compounds of polyolefins
-
- 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
- D01F1/00—General methods for the manufacture of artificial filaments or the like
- D01F1/02—Addition of substances to the spinning solution or to the melt
- D01F1/09—Addition of substances to the spinning solution or to the melt for making electroconductive or anti-static filaments
-
- 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
- D01F1/00—General methods for the manufacture of artificial filaments or the like
- D01F1/02—Addition of substances to the spinning solution or to the melt
- D01F1/10—Other agents for modifying properties
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Textile Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Artificial Filaments (AREA)
Abstract
The application provides a polypropylene-based antistatic bulked filament, which is formed by sequentially mixing, spinning, oiling and stretching and deforming polypropylene-based antistatic master batch and pure PP material; wherein the addition amount of the polypropylene-based antistatic master batch is 8-25% of the weight of the pure PP material; the polypropylene-based antistatic master batch comprises the following preparation raw materials in parts by weight: 80-100 parts of polypropylene, 15-30 parts of conductive whisker, 1-6 parts of graphene, 5-10 parts of conductive polymer and 5-12 parts of coupling agent; the composite conductive whisker, the graphene and the conductive polymer improve the antistatic capability of the filament, so that the filament can be used in light-colored fabrics, and the filament has excellent mechanical property and processing flow property on the basis of ensuring the antistatic property of the filament by optimizing the relative content of the solid conductive material and the organic material.
Description
Technical Field
The application relates to the technical field of functional fiber manufacturing, in particular to a polypropylene-based antistatic bulked filament and a preparation process thereof.
Background
Polypropylene has been widely used in the textile field as a general-purpose plastic due to its excellent physical, chemical, mechanical properties, processability, etc., but has a high electrical insulating property and a volume resistivity of about 10 16 -10 20 Omega cm, inStatic electricity is easy to accumulate in the processing process, so that equipment is damaged, and serious accidents are caused. For example, in the medical field, static electricity on surgical gowns can produce bacterial, dust and electric shock accidents; in the field of electronic industry, static electricity may cause damage to an integrated circuit, and adversely affects equipment; in dust working environments, laundry tribostatic electricity is liable to cause dust explosion and the like. How to enhance the electrical conductivity of polypropylene-based filaments has been widely studied.
At present, the introduction of the graphene can obviously improve the antistatic performance of the polypropylene-based material, but the graphene has darker color, and when the graphene is used in filaments, the graphene can influence the dyeability and the color fastness, so that the application of the filaments is greatly limited; in addition, the graphene is difficult to disperse, has poor compatibility with polypropylene, obviously reduces the mechanical property of polypropylene-based filaments, and also increases the difficulty of spinning technology.
Chinese patent CN105602103 a discloses a graphene-containing antistatic polypropylene material and a preparation method thereof, wherein the graphene is subjected to surface modification treatment by using a silane coupling agent, so that the dispersion of graphene in polypropylene is improved; chinese patent CN 109897278A discloses a preparation method of graphene modified polypropylene master batch, which adopts a solution-melt compounding method to modify polypropylene by using graphene, and enhances the dispersion effect by means of twice dispersion of graphene in a polypropylene matrix, and the prepared master batch can improve the mechanical strength of polypropylene. However, the polypropylene is added in a large amount in the method, the prepared material is dark in color, and the conductivity, mechanical properties and the like of the polypropylene-based material are still greatly improved.
Therefore, the polypropylene-based expansion filament yarn prepared by the method has the advantages of light color, easy dyeing, good antistatic property, excellent mechanical property and good processability, and has very important significance.
Disclosure of Invention
In order to solve the technical problems, the application firstly provides a polypropylene-based antistatic bulked filament, which is formed by sequentially mixing, spinning, oiling and stretching and deforming polypropylene-based antistatic master batch and pure PP material; wherein the addition amount of the polypropylene-based antistatic master batch is 8-25% of the weight of the pure PP material.
Further, the polypropylene-based antistatic master batch comprises the following preparation raw materials in parts by weight: 80-100 parts of polypropylene, 15-30 parts of conductive whisker, 1-6 parts of graphene, 5-10 parts of conductive polymer and 5-12 parts of coupling agent.
Further, the polypropylene has a number average molecular weight of 5 to 20 ten thousand, more preferably 5 to 10 ten thousand.
Further, the conductive whisker is at least one selected from magnesium sulfate whisker, potassium titanate whisker, zinc oxide whisker, titanium dioxide whisker and silicon dioxide whisker.
Further, the conductive polymer is at least one selected from polyaniline, polypyrrole and polythiophene, preferably polyaniline.
Further, the mass ratio of the graphene to the conductive whisker to the polyaniline is (2-4): (20-25): (5-10).
In a preferred embodiment, the mass ratio of the graphene, the conductive whisker and the polyaniline is 3:22:8.
preferably, the conductive whisker comprises zinc oxide whisker and potassium titanate whisker, and the weight ratio of the zinc oxide whisker to the potassium titanate whisker is (1-4): 1.
the unique two-dimensional layered structure of the graphene ensures that the graphene has good conductivity, but the color of the fiber and the color of the fabric can be deepened when the graphene is added into a fiber formula, so that the application of the fiber in light-colored fabrics is limited, the graphene is poor in stability and easy to agglomerate, and the addition amount cannot be excessive; the zinc oxide whisker presents a special four-needle-shaped three-dimensional space structure, so that four extending needle-shaped crystal positions of the zinc oxide whisker can be very effectively contacted with needle point positions of adjacent whiskers to form a good three-dimensional conductive network, which is conducive to forming a conductive path of fibers, and the zinc oxide whisker is colorless and transparent and has low cost, and is used as a main conductive matrix material together with the potassium titanate whisker, but when the usage amount of the zinc oxide whisker is too high, the interaction of the adjacent whiskers enhances the four-needle-shaped structure to be easily damaged into a single needle, even the needle-shaped structure is cracked, and the conductivity is reduced; the addition of the organic material can reduce the addition of the inorganic conductive filler to a certain extent, so that the compatibility in a fiber system is improved, but the relatively long molecular chain of polyaniline and the inorganic conductive substance in the system and the molecular chain of polypropylene interact, and when the addition is excessive, the system compatibility and the crack elongation are easily reduced, the construction of a conductive whisker network passage is influenced, and the improvement of conductivity is unfavorable.
Further, the whiteness of the zinc oxide whisker is more than or equal to 85 percent, the length of the needle is 10-50 mu m, and the diameter of the root of the needle is 0.5-5 mu m; preferably, the length of the needle-shaped body of the zinc oxide whisker is 10-15 mu m, and the diameter of the root of the needle-shaped body is 0.5-2 mu m.
Further, the diameter of the needle-like root of the potassium titanate whisker is 0.1-1 μm, the length of the needle-like body is 3-20 μm, preferably, the diameter of the needle-like body of the potassium titanate whisker is 0.2-0.6 μm, and the length of the needle-like body is 3-10 μm.
Further, the coupling agent is selected from silicone coupling agents and/or titanate coupling agents.
Further, the silicone coupling agent includes, but is not limited to, at least one of vinyltrimethoxysilane, vinyltriethoxysilane, methylvinyldimethoxysilane, methylvinyldiethoxysilane, vinyltris (β methoxyethoxy) silane), γ -aminopropyl trimethoxysilane, γ -aminopropyl triethoxysilane, γ -mercaptotriethoxysilane, 3- (methacryloyloxy) propyl trimethoxy-like silane.
Further, the titanate coupling agent includes, but is not limited to, at least one of isopropyl tri (dioctyl pyrophosphate) titanate, bis (dioctyl pyrophosphate) ethylene titanate.
Further preferably, the coupling agent is an organosilicon coupling agent, specifically, gamma-aminopropyl triethoxysilane and 3- (methacryloyloxy) propyl trimethoxysilane, and the weight ratio is (1.5-2.5): 1.
further, the raw materials of the polypropylene-based antistatic master batch also comprise maleic anhydride grafted ethylene-octene copolymer, and the dosage of the maleic anhydride grafted ethylene-octene copolymer accounts for 5-25% of the weight of the polypropylene. The application uses the maleic anhydride grafted ethylene-octene copolymer as one of the media for connecting polypropylene and conductive filler inside the material, so as to improve the compatibility of the system and further enhance the mechanical property of the fiber; the elastic molecular chain segment of the ethylene-octene copolymer can enhance the tensile property of the system, make up the influence of the introduction of the conductive filler on the mechanical property of the system, and in addition, the maleic anhydride grafted by the molecular chain can increase the stability of the conductive filler in the system and inhibit the aggregation of the conductive filler through the action of conjugation, electrostatic force and other acting forces; however, the usage amount is strictly controlled, so that the adverse effect on the fluidity and the processability of the system is avoided, and the mechanical strength of the fiber is further reduced.
Further, the raw materials of the polypropylene-based antistatic master batch also comprise 1-5 parts by weight of lubricant and 1-3 parts by weight of antioxidant.
Further, the lubricant includes an outer lubricant and an inner lubricant; the external lubricant is at least one of microcrystalline paraffin, solid paraffin, polyethylene wax, stearate and silicone powder; the internal lubricant is at least one of stearamide, oleamide, N-ethylene distearamide, pentaerythritol stearate and fatty acid.
In one embodiment, the lubricant comprises polyethylene wax and N, N-ethylene bis-stearamide.
Further, the antioxidant is at least one of hindered phenol antioxidants, phosphite antioxidants, amine antioxidants and thioester antioxidants, and preferably comprises hindered phenol antioxidants.
Further, the preparation method of the polypropylene-based antistatic master batch comprises the following steps:
(1) Adding graphene into an organic solvent for ultrasonic dispersion to obtain a graphene dispersion liquid; simultaneously heating and dissolving polypropylene in dimethylbenzene, adding graphene dispersion liquid into the solution after the solution is completely dissolved, continuously heating the solution to 140-160 ℃ and stirring the solution for 1-2h, and then drying the solution at 65-85 ℃ to obtain graphene/polypropylene prefabricated material;
(2) Mixing the graphene/polypropylene prefabricated material with the rest raw materials, introducing the mixture into a screw extruder for melt extrusion, cooling and granulating.
Further, the dispersion concentration of the graphene is 1-2.5g/L, and the organic solvent comprises at least one of ethanol, isopropanol, propanol and water.
Further, the mass ratio of the polypropylene to the dimethylbenzene is 1: (12-20).
Further, in the step (2), the extrusion temperature of the screw extruder is 225-245 ℃. The addition of the conductive filler and the acting force between the conductive filler and the organic material can cause difficulty in processing a fiber system, aggregation is easy to occur when whiskers and graphene are unevenly dispersed, more stress concentration areas are formed in the fiber, and relative friction among the whiskers in processing increases the risk of fracture of a whisker structure, so that the mechanical property and conductivity of the fiber are reduced. The composite material has better sensitivity to temperature, and when the extrusion temperature is set to 225-245 ℃, special action intensity and relative movement capability between materials can be ensured, so that the conductivity and mechanical property of the fiber are both in optimal values.
Secondly, the application also provides a preparation process of the polypropylene-based antistatic bulked continuous filament, which specifically comprises the following steps:
s1, melting: mixing the polypropylene-based antistatic master batch and the pure PP material, and then carrying out melt extrusion by a screw, wherein the melting temperature is 225-245 ℃;
s2, spinning: extruding the melt in the step S1 from a spinneret plate, wherein the spinning speed is 10-80m/min;
s3, cooling: slowly cooling the silk body by adopting a lateral blowing, wherein the lateral blowing temperature is 20-25 ℃, the humidity is 65-85%, and the wind speed is 0.6-1.0m/s;
s4, oiling: oiling the cooled silk body, wherein the oiling rate is 0.5-2%;
s5, stretching deformation: the first hot roller speed in the stretching deformation is 620-780m/min, the temperature is 50+/-5 ℃, the second hot roller speed is 640-850m/min, and the temperature is 85+/-5 ℃; the speed of the drawing roller is 2200-2800m/min, the temperature of the drawing roller is 120-130 ℃, and the thermal deformation temperature is 140-160 ℃;
s6, winding the steel into a cylinder.
Further, the aperture of the spinneret plate is 0.25-0.5mm, the length-diameter ratio is 0.9-2.0, and the number of holes of the spinneret plate is 72-300 holes.
Preferably, the spinning speed in the step S2 is 30-50m/min.
Further, the rotation speed of the oil wheel in the step S4 is 35-55r/min, and the oil coating rate is 0.7-1.1%.
Further, the first hot rod speed in the S5 stretching deformation is 620-700m/min, the temperature is 50+/-5 ℃, the second hot rod speed is 640-800m/min, and the temperature is 85+/-5 ℃.
Further, the speed of the first regulating roller and the second regulating roller in the step S6 is 1850-2350m/min, and the winding speed is 1870-2400m/min.
Further, the polypropylene-based antistatic bulked filament can be used for preparing bulked yarn.
Advantageous effects
1. According to the application, different types of conductive materials are compounded, so that not only are the conductive performance and antistatic capability of the filaments improved, but also the influence of the conductive materials on filament dyeing is reduced, so that the filaments can be used in light-colored fabrics, and the mechanical properties of the filaments are synchronously improved on the basis of ensuring the antistatic performance of the filaments by optimizing the relative content of the conductive materials;
2. the application optimally uses the maleic anhydride grafted ethylene-octene copolymer and different kinds of coupling agents to wrap and disperse the solid conductive material, and the maleic anhydride grafted ethylene-octene copolymer is used as a medium for connecting polypropylene and the solid conductive material, so that the compatibility of a polypropylene-based system and the dispersion uniformity and stability of the conductive material are improved, the mechanical property and antistatic capability of filaments are further improved, and the processing flow property of the system is improved by adjusting the use amount of the filaments;
3. the application optimizes the preparation process and spinning process of the material, and the material is matched with the preparation raw material of the filaments so that the prepared expanded filaments have excellent mechanical properties and stable antistatic capability.
Detailed Description
Examples
Example 1
The embodiment provides a polypropylene-based antistatic bulked continuous filament, and the preparation process comprises the following steps:
s1, melting: mixing 20 parts by weight of polypropylene-based antistatic master batch and 100 parts by weight of pure PP material, and then carrying out melt extrusion by a screw, wherein the melting temperature is 230 ℃;
s2, spinning: extruding the melt in the step S1 from a spinneret plate with the aperture of 0.305mm, the length-diameter ratio of 1.8 and the spinneret plate aperture number of 120 holes, wherein the spinning speed is 45.6m/min;
s3, cooling: slowly cooling the silk body by adopting a lateral blowing, wherein the lateral blowing temperature is 22 ℃, the humidity is 70%, and the wind speed is 0.85m/s;
s4, oiling: the cooled silk body is oiled by adopting German BCF oiling agent, the rotating speed of the oil tanker is 40r/min, and the oiling rate is 0.9%;
s5, stretching deformation: the first hot roller speed in the stretching deformation is 660m/min, the temperature is 50 ℃, the second hot roller speed is 670m/min, the temperature is 85 ℃, the speed of the drawing roller is 2500m/min, the temperature of the drawing roller is 125 ℃, and the thermal deformation temperature is 150 ℃;
s6, winding: the first regulating roller speed is 2260m/min, the second regulating roller speed is 2280m/min, and the winding speed is 2300m/min.
The polypropylene-based antistatic master batch comprises the following preparation raw materials in parts by weight: 100 parts of polypropylene, 18 parts of maleic anhydride grafted ethylene-octene copolymer, 22 parts of conductive whiskers, 4 parts of graphene, 9 parts of polyaniline, 10 parts of a coupling agent, 4 parts of a lubricant and 3 parts of an antioxidant 1010;
the polypropylene has a number average molecular weight of 8 ten thousand, and the conductive whisker is zinc oxide whisker and potassium titanate whisker, and the weight ratio is 2:1, the whiteness of the zinc oxide whisker is more than or equal to 85 percent, the length of a needle is 12 mu m, and the diameter of the root of the needle is 1.2 mu m; the diameter of the root of the needle-shaped body of the potassium titanate whisker is 0.4 mu m, and the length of the needle-shaped body is 5 mu m; the coupling agent is gamma-aminopropyl triethoxysilane and 3- (methacryloyloxy) propyl trimethoxysilane, and the weight ratio is 2.2:1, a step of; the lubricant is 1:1 weight of polyethylene wax and N, N-ethylene bis-stearamide.
Example 2
The embodiment provides a polypropylene-based antistatic bulked continuous filament, and the preparation process comprises the following steps:
s1, melting: mixing 25 parts by weight of polypropylene-based antistatic master batch and 100 parts by weight of pure PP material, and then carrying out melt extrusion by a screw, wherein the melting temperature is 225 ℃;
s2, spinning: extruding the melt in the step S1 from a spinneret plate with the aperture of 0.45mm, the length-diameter ratio of 1.8 and the spinneret plate aperture number of 96 holes, wherein the spinning speed is 48.2m/min;
s3, cooling: slowly cooling the silk body by adopting a lateral blowing, wherein the lateral blowing temperature is 25 ℃, the humidity is 65%, and the wind speed is 0.9m/s;
s4, oiling: oiling the cooled silk body, wherein the rotating speed of the oil tanker is 35r/min, and the oiling rate is 1.1%;
s5, stretching deformation: the first hot roller speed in the stretching deformation is 780m/min, the temperature is 55 ℃, the second hot roller speed is 800m/min, the temperature is 90 ℃, the speed of a drawing roller is 2800m/min, the temperature of the drawing roller is 130 ℃, and the deformation temperature is 160 ℃;
s6, winding: the first regulating roller speed is 2330m/min, the second regulating roller speed is 2350m/min, and the winding speed is 2400m/min.
The polypropylene-based antistatic master batch comprises the following preparation raw materials in parts by weight: 90 parts of polypropylene, 22.5 parts of maleic anhydride grafted ethylene-octene copolymer, 15 parts of conductive whiskers, 1 part of graphene, 10 parts of polyaniline, 5 parts of coupling agent, 1 part of lubricant and 1 part of antioxidant 1010;
the polypropylene has the number average molecular weight of 10 ten thousand, and the conductive whisker is zinc oxide whisker and potassium titanate whisker, and the weight ratio is 4:1, the whiteness of the zinc oxide whisker is more than or equal to 85 percent, the length of a needle is 12 mu m, and the diameter of the root of the needle is 1.2 mu m; the diameter of the root of the needle-shaped body of the potassium titanate whisker is 0.4 mu m, and the length of the needle-shaped body is 5 mu m; the coupling agent is gamma-aminopropyl triethoxysilane and 3- (methacryloyloxy) propyl trimethoxysilane, and the weight ratio is 2.5:1, a step of; the lubricant is 1:1 weight of polyethylene wax and N, N-ethylene bis-stearamide.
Example 3
The embodiment provides a polypropylene-based antistatic bulked continuous filament, and the preparation process comprises the following steps:
s1, melting: mixing 8 parts by weight of polypropylene-based antistatic master batch and 100 parts by weight of pure PP material, and then carrying out melt extrusion by a screw, wherein the melting temperature is 245 ℃;
s2, spinning: extruding the melt in the step S1 from a spinneret plate with the aperture of 0.35mm, the length-diameter ratio of 1.6 and the spinneret plate aperture number of 144 holes, wherein the spinning speed is 42.2m/min;
s3, cooling: slowly cooling the silk body by adopting a lateral blowing, wherein the lateral blowing temperature is 20 ℃, the humidity is 85%, and the wind speed is 0.95m/s;
s4, oiling: oiling the cooled silk body, wherein the rotating speed of the oil tanker is 55r/min, and the oiling rate is 0.92%;
s5, stretching deformation: the first hot roller speed in the stretching deformation is 620m/min, the temperature is 50 ℃, the second hot roller speed is 640m/min, the temperature is 85 ℃, the drawing roller speed is 2200m/min, the drawing roller temperature is 120 ℃, and the thermal deformation temperature is 140 ℃;
s6, winding: the first dancer roll speed was 1850m/min, the second dancer roll speed was 1860m/min, and the winding speed was 1870m/min.
The polypropylene-based antistatic master batch comprises the following preparation raw materials in parts by weight: 80 parts of polypropylene, 8 parts of maleic anhydride grafted ethylene-octene copolymer, 30 parts of conductive whiskers, 6 parts of graphene, 5 parts of polyaniline, 12 parts of a coupling agent, 5 parts of a lubricant and 3 parts of an antioxidant 1010;
the polypropylene has a number average molecular weight of 8 ten thousand, and the conductive whisker is zinc oxide whisker and potassium titanate whisker, and the weight ratio is 1:1, the whiteness of the zinc oxide whisker is more than or equal to 85 percent, the length of a needle is 12 mu m, and the diameter of the root of the needle is 1.2 mu m; the diameter of the root of the needle-shaped body of the potassium titanate whisker is 0.4 mu m, and the length of the needle-shaped body is 5 mu m; the coupling agent is gamma-aminopropyl triethoxysilane and 3- (methacryloyloxy) propyl trimethoxysilane, and the weight ratio is 1.5:1, a step of; the lubricant is 1:1 weight of polyethylene wax and N, N-ethylene bis-stearamide.
Comparative example 1
Substantially identical to example 1, except that: the maleic anhydride grafted ethylene-octene copolymer is 2 parts.
Comparative example 2
Substantially identical to example 1, except that: the conductive whisker only comprises zinc oxide whisker.
Comparative example 3
Substantially identical to example 1, except that: the coupling agent is 3- (methacryloyloxy) propyl trimethoxy silane.
Comparative example 4
The polypropylene-based antistatic master batch comprises the following preparation raw materials in parts by weight: 100 parts of polypropylene, 18 parts of maleic anhydride grafted ethylene-octene copolymer, 12 parts of conductive whiskers, 14 parts of graphene, 9 parts of polyaniline, 10 parts of coupling agent, 4 parts of lubricant and 3 parts of antioxidant 1010
Comparative example 5
Substantially identical to example 1, except that: the polypropylene-based antistatic master batch comprises the following preparation raw materials in parts by weight: 100 parts of polypropylene, 18 parts of maleic anhydride grafted ethylene-octene copolymer, 31 parts of conductive whiskers, 4 parts of graphene, 10 parts of a coupling agent, 4 parts of a lubricant and 3 parts of an antioxidant 1010.
The preparation method of the polypropylene-based antistatic master batch in the embodiment comprises the following steps:
(1) Adding graphene into ethanol, and performing ultrasonic dispersion to obtain graphene dispersion liquid with the concentration of 1.5 g/L; simultaneously according to 1:15, heating and dissolving polypropylene in dimethylbenzene at 130 ℃, adding graphene dispersion liquid into the solution after the polypropylene is completely dissolved, continuously heating to 150 ℃, stirring for 1h, and drying at 80 ℃ to obtain graphene/polypropylene prefabricated material;
(2) Mixing the graphene/polypropylene prefabricated material, the maleic anhydride grafted ethylene-octene copolymer, the conductive whisker, the polyaniline, the coupling agent, the lubricant and the antioxidant, and then introducing the mixture into a screw extruder for melt extrusion, wherein the extrusion temperature is 240 ℃, cooling and granulating.
The performance test method comprises the following steps:
1. yarn color value: using a Germany datacolor-600 TM computer color measuring instrument to test the Lab value of the yarn, wherein the larger the L value in the table is, the lighter the color of the yarn is; conversely, the darker the yarn color;
2. antistatic properties: testing the surface resistance of the fiber according to GB/T1410-2006 standard;
3. breaking strength: elongation at break was carried out according to GB/T14344-2008 standard. Performance test results:
the test results are shown in Table 1.
TABLE 1
Claims (9)
1. The polypropylene-based antistatic bulked filament is characterized in that the bulked filament is formed by sequentially carrying out melt spinning, cooling, oiling, stretching deformation and winding on polypropylene-based antistatic master batch and pure PP material; wherein the addition amount of the polypropylene-based antistatic master batch is 8-25% of the weight of the pure PP material;
the polypropylene-based antistatic master batch comprises the following preparation raw materials in parts by weight: 80-100 parts of polypropylene, 15-30 parts of conductive whisker, 1-6 parts of graphene, 5-10 parts of conductive polymer and 5-12 parts of coupling agent.
2. The filament according to claim 1, wherein the conductive whiskers are selected from at least one of magnesium sulfate whiskers, potassium titanate whiskers, zinc oxide whiskers, titanium dioxide whiskers, silicon dioxide whiskers; the conductive polymer is at least one selected from polyaniline, polypyrrole and polythiophene.
3. The filament according to claim 1, wherein the conductive polymer is polyaniline, and the mass ratio of graphene, conductive whiskers and polyaniline is (2-4): (20-25): (5-10).
4. The filament according to claim 1, wherein the electrically conductive whiskers comprise zinc oxide whiskers and potassium titanate whiskers in a weight ratio of (1-4): 1.
5. a filament according to claim 1, wherein the zinc oxide whiskers have a whiteness of greater than or equal to 85%, a needle length of 10 to 50 μm and a needle root diameter of 0.5 to 5 μm.
6. The filament according to claim 2, wherein the coupling agent is gamma-aminopropyl triethoxysilane and 3- (methacryloyloxy) propyl trimethoxysilane.
7. The filament according to claim 1, wherein the raw material of the polypropylene-based antistatic masterbatch further comprises a maleic anhydride grafted ethylene-octene copolymer in an amount of 5-25% by weight of the polypropylene.
8. The filament according to claim 1, wherein the raw material of the polypropylene-based antistatic masterbatch further comprises 1 to 5 parts by weight of a lubricant and 1 to 3 parts by weight of an antioxidant.
9. The process for the preparation of filaments according to any one of claims 1 to 8, characterized in that it comprises in particular:
s1, melting: mixing polypropylene-based antistatic master batch and pure PP material, and then carrying out melt extrusion by a screw, wherein the melting temperature is 225-245 ℃;
s2, spinning: extruding the melt in the step S1 from a spinneret plate, wherein the spinning speed is 10-80m/min;
s3, cooling: slowly cooling the silk body by adopting a lateral blowing, wherein the lateral blowing temperature is 20-25 ℃, the humidity is 65-85%, and the wind speed is 0.6-1.0m/s;
s4, oiling: oiling the cooled silk body, wherein the oiling rate is 0.5-2%;
s5, stretching deformation: the first hot roller speed in the stretching deformation is 620-780m/min, the temperature is 50+/-5 ℃, the second hot roller speed is 640-850m/min, and the temperature is 85+/-5 ℃; the speed of the drawing roller is 2200-2800m/min, the temperature of the drawing roller is 120-130 ℃, and the thermal deformation temperature is 140-160 ℃;
s6, winding the steel into a cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310649808.1A CN116892066B (en) | 2023-06-02 | A polypropylene-based antistatic expanded polypropylene filament and its preparation process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310649808.1A CN116892066B (en) | 2023-06-02 | A polypropylene-based antistatic expanded polypropylene filament and its preparation process |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN116892066A true CN116892066A (en) | 2023-10-17 |
| CN116892066B CN116892066B (en) | 2026-01-02 |
Family
ID=
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117888230A (en) * | 2024-03-14 | 2024-04-16 | 广州奥王达皮具有限公司 | Waterproof antistatic box wrapping cloth material and preparation method thereof |
| CN119265734A (en) * | 2024-11-01 | 2025-01-07 | 中维化纤股份有限公司 | Easy-to-dye anti-oxidation nylon filament and preparation method thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013011250A1 (en) * | 2011-07-21 | 2013-01-24 | Arkema France | Graphene-based conductive composite fibres |
| CN102965755A (en) * | 2012-11-26 | 2013-03-13 | 浙江理工大学 | Preparation method of antistatic polypropylene fiber |
| JP2013181251A (en) * | 2012-02-29 | 2013-09-12 | Toray Ind Inc | Antistatic fiber excellent in whiteness |
| KR20190110806A (en) * | 2018-03-21 | 2019-10-01 | 주식회사 쏠텍 | Master batch of graphene poly proplene fabric and graphene pp staple fiber using the master batch, and manufacturing method thereof |
| CN111420466A (en) * | 2020-04-27 | 2020-07-17 | 常州美洛医疗科技有限公司 | Graphene polypropylene electret air filtration antibacterial fiber and preparation method thereof |
| CN114737289A (en) * | 2022-05-20 | 2022-07-12 | 安徽恒益纺织科技有限公司 | A kind of conductive yarn and processing method |
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013011250A1 (en) * | 2011-07-21 | 2013-01-24 | Arkema France | Graphene-based conductive composite fibres |
| JP2013181251A (en) * | 2012-02-29 | 2013-09-12 | Toray Ind Inc | Antistatic fiber excellent in whiteness |
| CN102965755A (en) * | 2012-11-26 | 2013-03-13 | 浙江理工大学 | Preparation method of antistatic polypropylene fiber |
| KR20190110806A (en) * | 2018-03-21 | 2019-10-01 | 주식회사 쏠텍 | Master batch of graphene poly proplene fabric and graphene pp staple fiber using the master batch, and manufacturing method thereof |
| CN111420466A (en) * | 2020-04-27 | 2020-07-17 | 常州美洛医疗科技有限公司 | Graphene polypropylene electret air filtration antibacterial fiber and preparation method thereof |
| CN114737289A (en) * | 2022-05-20 | 2022-07-12 | 安徽恒益纺织科技有限公司 | A kind of conductive yarn and processing method |
Non-Patent Citations (1)
| Title |
|---|
| 高维民 主编: "《石油化工安全卫生监督指南》", vol. 1, 28 February 1991, 中国劳动出版社, pages: 169 - 170 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117888230A (en) * | 2024-03-14 | 2024-04-16 | 广州奥王达皮具有限公司 | Waterproof antistatic box wrapping cloth material and preparation method thereof |
| CN117888230B (en) * | 2024-03-14 | 2024-05-10 | 广州奥王达皮具有限公司 | Waterproof antistatic box wrapping cloth material and preparation method thereof |
| CN119265734A (en) * | 2024-11-01 | 2025-01-07 | 中维化纤股份有限公司 | Easy-to-dye anti-oxidation nylon filament and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Chen et al. | Polymer-based dielectric nanocomposites with high energy density via using natural sepiolite nanofibers | |
| CN107313126B (en) | Method for producing graphene modified polyamide-6 fiber through high-speed spinning | |
| Silva et al. | Nanocomposites of natural rubber and polyaniline-modified cellulose nanofibrils | |
| WO2012124937A2 (en) | Graphene conjugate fiber and method for manufacturing same | |
| CN101831726B (en) | Preparation method of attapulgite modified polyester industrial yarns | |
| CN101910281A (en) | Polyolefin nanocomposites containing functional ionic liquids and carbon nanofillers | |
| Qu et al. | Conductive polymer yarns for electronic textiles | |
| CN110204806A (en) | A kind of nanometer of aramid fiber modified butadiene acrylonitrile rubber and preparation method thereof | |
| CN113913000A (en) | Antibacterial master batch, polyester DTY (draw textured yarn) yarn applying antibacterial master batch and production method of polyester DTY yarn | |
| CN104262646B (en) | The Long Carbon Chain Polyamide powdered base of morphology controllable and the highly conductive composite powder material of morphology controllable | |
| CN112127005A (en) | Polyester filament yarn and preparation process thereof | |
| Onder et al. | The manufacturing of polyamide–and polypropylene–organoclay nanocomposite filaments and their suitability for textile applications | |
| JP4183710B2 (en) | Totally aromatic polyamide fiber and method for producing the same | |
| CN108285639A (en) | A kind of novel conductive plastics and its preparation process | |
| CN116892066B (en) | A polypropylene-based antistatic expanded polypropylene filament and its preparation process | |
| CN116892066A (en) | A kind of polypropylene-based antistatic expanded filament and its preparation process | |
| CN112853521B (en) | Production method of anti-static POY (polyester pre-oriented yarn) | |
| CN111575808A (en) | Production method of waterproof antistatic polyester filament | |
| Zeng et al. | Processing, structure, and properties of multiwalled carbon nanotube–poly (phenylene sulfide) composite fibers | |
| CN102516681A (en) | Glass-fiber-reinforced AS (acrylonitrile-styrene) resin antistatic material and preparation method | |
| CN113897790A (en) | A kind of preparation method of carbon fiber TPU coating and modified TPU carbon fiber yarn | |
| Akhlaghi et al. | Rheological behavior of poly (acrylonitrile) concentrated solutions: effect of Sb2O3 nanoparticles on shear and extensional flow | |
| CN1490440A (en) | Inorganic particle suspension for modified acrylic fiber, preparation method and use | |
| CN103710781A (en) | Hygroscopic polyester fiber and manufacturing method thereof | |
| Liu et al. | Effects of cellulose nanowhiskers on the properties of poly (vinyl alcohol)/graphene nanoplatelets nanocomposites |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant |