CN112813524B - Acrylic fiber containing plant source extract and collagen micro powder and preparation method thereof - Google Patents
Acrylic fiber containing plant source extract and collagen micro powder and preparation method thereof Download PDFInfo
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- CN112813524B CN112813524B CN202110027002.XA CN202110027002A CN112813524B CN 112813524 B CN112813524 B CN 112813524B CN 202110027002 A CN202110027002 A CN 202110027002A CN 112813524 B CN112813524 B CN 112813524B
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- 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
- D01F6/54—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 polymers of unsaturated nitriles
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D1/00—Treatment of filament-forming or like material
- D01D1/02—Preparation of spinning solutions
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D5/00—Formation of filaments, threads, or the like
- D01D5/06—Wet spinning methods
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- 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
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- 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
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
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- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
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- Manufacturing & Machinery (AREA)
- Artificial Filaments (AREA)
Abstract
The invention provides an acrylic fiber containing a plant source extract and collagen micro powder, wherein the mass content of the collagen micro powder is 5.6-7.7%, the mass content of the plant source extract is 1.8-2.7%, and the mass content of the heat-conducting powder is 4.6-6.6%. The dry strength of the acrylic fiber prepared by the invention is equal to or greater than 3.5cN/dtex, and the coupling strength is equal to or greater than 0.96 cN/dtex; the instant contact cool feeling (Q-max) of the fiber prepared by the invention is more than 0.33W/cm2The resistivity of the fiber is 1 omega cm-10 omega cm; no stuffy feeling when wearing the shoes, and the heat conductivity coefficient is 0.45-0.48W/mK. The fiber, the plant extract and the collagen micro powder prepared by the invention have less loss in the washing process.
Description
Technical Field
The invention relates to an acrylic fiber containing plant source extract and collagen micro powder and a preparation method thereof, belonging to the technical field of acrylic fibers.
Background
The acrylic fiber has excellent properties, such as light weight, soft and warm hand feeling, bright and firm dyeing, and moth and mildew resistance of fiber, and the acrylic fiber has the best stability on sunlight and atmospheric action in all the current synthetic fibers produced on a large scale. However, like other synthetic fibers, acrylic fibers have the common disadvantages of poor moisture absorption and retention and strong stuffy and uncomfortable feeling of wearing, thereby limiting the application of acrylic fibers in the fields of underwear, shirts, pajamas, linings of clothes, close-fitting sportswear and the like.
The Chinese patent with the application number of 201010521971.2 discloses phase-change microcapsule heat-storage and temperature-regulation polyacrylonitrile fiber and a wet spinning preparation method thereof. The prepared fiber has high thermal efficiency, and has good physical and mechanical properties, wearability, processability and dyeing property; the phase-change material is paraffin wax which is already industrially produced, and has the advantage of low cost.
According to the patent, the phase-change temperature-regulating microcapsules are added into the spinning solution, and wet spinning is realized by taking a sodium thiocyanate aqueous solution as a coagulant solution, so that the fibers have the function of absorbing and releasing heat according to the change of the external environment, but acrylic fibers are called artificial wool, and the warmth retention rate is the best of synthetic fibers, so that the fibers are not beneficial to heat conduction, and therefore, even if the fibers are only used as a next-to-skin fabric in autumn and winter, the heat released when the microcapsules in the fibers undergo phase change is not lost, and the stuffiness feeling and the static aggregation of next-to-skin clothes are greatly increased;
meanwhile, the addition amount of the phase-change microcapsule in the patent reaches 10-40%, and the mechanical property of the fiber can be reduced.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides an acrylic fiber containing plant source extract and collagen micro powder and a preparation method thereof, so as to realize the following purposes:
(1) the thermal conductivity of the thermoregulation acrylic fiber is improved, and the instant contact cool feeling is improved;
(2) ensuring the mechanical properties of the fiber.
In order to solve the technical problem, the invention adopts the following technical scheme:
an acrylic fiber containing plant source extract and collagen micro powder, wherein the mass content of the collagen micro powder is 5.6-7.7%, the mass content of the plant source extract is 1.8-2.7%, and the mass content of the heat-conducting powder is 4.6-6.6%.
The following is a further improvement of the above technical solution:
an acrylic fiber containing plant source extract and collagen micro powder and a preparation method thereof, comprising the following steps:
1. preparation of plant-derived extract-protein micropowder dispersion
Mixing the collagen micro powder and the plant source extract, adding the mixture into deionized water, stirring and dispersing the mixture evenly, then vacuumizing the mixture to the pressure of-0.02 to-0.03 MPa, keeping the pressure for 10 to 15 seconds, recovering the pressure to the normal pressure, heating the mixture to 50 to 60 ℃, stirring the mixture at the rotation speed of 500 plus materials for 700r/min, preserving the heat for 10 to 20min, and cooling the mixture to obtain the plant source extract-protein micro powder dispersion liquid.
The particle size of the collagen micro powder is less than or equal to 1 mu m;
the mass ratio of the collagen micro powder to the plant source extract is 2-4: 1;
the plant source extract is a mixture of a mint extract and a ginger extract, and the mass ratio of the mint extract to the ginger extract is 5: 1.
The plant source extract-protein micro powder dispersion liquid contains 20-25% of collagen micro powder by mass.
2. Preparation of Polyacrylonitrile solution
Slowly adding polyacrylonitrile into a dimethyl sulfoxide solvent while stirring, keeping the temperature and stirring for 4-6 hours at 80-90 ℃, cooling to 60 +/-2 ℃, and filtering to obtain a polyacrylonitrile solution.
The mass ratio of the polyacrylonitrile to the dimethyl sulfoxide is 1: 4-5.
The molecular weight of the polyacrylonitrile is 3-3.5 ten thousand.
3. Preparation of composite dope stock solution
Mixing the prepared plant source extract-protein micropowder dispersion liquid with a polyacrylonitrile solution, adding heat-conducting powder, stirring under the condition of charging nitrogen at 60 +/-2 ℃ for protection, filtering and defoaming to obtain a composite spinning solution stock solution.
The mass ratio of the collagen micro powder in the plant source extract-protein micro powder dispersion liquid to the polyacrylonitrile is 6-8%;
the mass ratio of the heat-conducting powder to the polyacrylonitrile is 5-7%.
4. Spinning
Metering the spinning solution stock solution by a metering pump, extruding the spinning solution stock solution by a spinning nozzle, feeding the spinning solution stock solution into a coagulating bath, feeding tows out of the coagulating bath into a preheating bath, stretching the fiber by 2-3 times in the preheating bath, stretching the tows treated by the preheating bath in a stretching bath, stretching the tows twice by 5-8 times, and then carrying out heat setting, cross-linking bath treatment, oiling and cutting to obtain the finished fiber.
The coagulating bath comprises the following components in parts by weight: 7-9 parts of dimethyl sulfoxide, 0.5-0.7 part of isoamyl alcohol, 1-2 parts of n-butyl alcohol and 90-92 parts of water at the temperature of 15-20 ℃;
the preheating bath comprises the following components in parts by weight: 2-3 parts of dimethyl sulfoxide, 0.4-0.7 part of isoamyl alcohol and 0.5-0.9 part of n-butyl alcohol at the temperature of 60-65 ℃.
The drawing bath is deionized water and the temperature is 70-75 ℃;
the heat setting and air bath are carried out at the temperature of 100-;
the crosslinking bath is 20-30g/L glyoxal, the crosslinking time is 5-10 min, and the temperature is 35-40 ℃;
the heat conducting powder comprises mica and silicon carbide, the mass ratio of the mica to the silicon carbide is 1:1, and the particle size D90 is less than or equal to 0.9 micrometer.
Compared with the prior art, the invention has the following beneficial effects:
(1) the dry strength of the acrylic fiber prepared by the invention is not less than 3.5cN/dtex, the coupling strength is not less than 0.96 cN/dtex, and the water absorption per g of fiber is 12-14 g.
(2) The instant contact cool feeling (Q-max) of the fiber prepared by the invention is more than 0.33W/cm2The resistivity of the fiber is between 1 omega cm and 10 omega cm; no stuffy feeling when wearing the shoes, and the heat conductivity coefficient is 0.45-0.48W/mK.
(3) The fiber, the plant extract and the collagen micro powder prepared by the invention have less loss in the washing process, the washing is carried out for 20 times, the loss rate of the plant extract is 6.5-8.1%, and the loss rate of the collagen micro powder is 5.2-7.0%.
(4) The fiber prepared by the method is easy to dye, and the dye-uptake of the cationic dye reaches 80-85%.
Detailed Description
Example 1 acrylic fiber containing plant source extract and collagen micro powder and method for preparing the same
The method comprises the following steps:
1. preparation of plant-derived extract-protein micropowder dispersion
Mixing the collagen micro powder and the plant source extract, adding the mixture into deionized water, stirring and dispersing the mixture uniformly, then vacuumizing the mixture to the pressure of-0.02 MPa, keeping the pressure for 15s, recovering the pressure to normal pressure, heating the mixture to 50 ℃, stirring the mixture at the rotating speed of 500r/min, keeping the temperature for 10min, and cooling the mixture to obtain the plant source extract-protein micro powder dispersion liquid.
The particle size of the collagen micro powder is less than or equal to 1 mu m;
the mass ratio of the collagen micro powder to the plant source extract is 2: 1;
the plant source extract is a mixture of a mint extract and a ginger extract, and the mass ratio of the mint extract to the ginger extract is 5: 1.
The plant source extract-protein micro powder dispersion liquid contains 20% of collagen micro powder by mass.
2. Preparation of Polyacrylonitrile solution
Slowly adding polyacrylonitrile into a dimethyl sulfoxide solvent while stirring, keeping the temperature at 80 ℃ and stirring for 6 hours, cooling to 58 ℃, and filtering to obtain a polyacrylonitrile solution.
The mass ratio of the polyacrylonitrile to the dimethyl sulfoxide is 1: 4.
The molecular weight of the polyacrylonitrile is 3 ten thousand.
3. Preparation of composite dope stock solution
Mixing the prepared plant source extract-protein micropowder dispersion liquid with a polyacrylonitrile solution, adding heat-conducting powder, stirring under the protection of nitrogen gas at 58 ℃, filtering and defoaming to obtain a composite spinning solution stock solution.
The mass ratio of the collagen micropowder in the plant source extract-protein micropowder dispersion liquid to the polyacrylonitrile is 6%;
the mass ratio of the heat-conducting powder to the total amount of polyacrylonitrile is 5%.
4. Spinning
Metering the spinning solution stock solution by a metering pump, extruding the spinning solution stock solution by a spinning nozzle, allowing the spinning solution stock solution to enter a coagulating bath, allowing tows out of the coagulating bath to enter a preheating bath, stretching the fiber by 2 times in the preheating bath, stretching the tows treated by the preheating bath in a stretching bath tank, stretching the tows twice by 5 times, and performing heat setting, cross-linking bath treatment, oiling and cutting to obtain the finished fiber.
The coagulating bath comprises the following components in parts by weight: 7 parts of dimethyl sulfoxide, 0.5 part of isoamyl alcohol, 1 part of n-butyl alcohol and 90 parts of water, wherein the temperature is 15 ℃;
the preheating bath comprises the following components in parts by weight: 2 parts of dimethyl sulfoxide, 0.4 part of isoamyl alcohol and 0.5 part of n-butyl alcohol, and the temperature is 60 ℃.
The drawing bath is deionized water and the temperature is 70 ℃;
performing heat setting, performing air bath at the temperature of 100 ℃ for 40s, and rapidly cooling after heat treatment setting;
the crosslinking bath is 20g/L glyoxal, the crosslinking time is 10min, and the temperature is 35 ℃;
the heat conducting powder comprises mica and silicon carbide, the mass ratio of the mica to the silicon carbide is 1:1, and the particle size D90 is less than or equal to 0.9 micrometer.
The dry strength of the acrylic fiber prepared by the invention is 3.7cN/dtex, the hooking strength is 0.99 cN/dtex, and the water absorption per g of fiber reaches 12 g.
The mass content of the collagen micro powder is 5.6%, the mass content of the plant source extract is 2.7%, and the mass content of the heat-conducting powder is 4.6%; the content is relative to polyacrylonitrile, after washing for 20 times, the mass content of the plant source extract is 2.48%, and the mass content of the collagen micro powder is 5.2%.
The instant contact cool feeling (Q-max) of the fiber prepared by the invention is 0.37W/cm2The resistivity of the fiber is 7 omega cm; the wear has no stuffy feeling, and the heat conductivity coefficient is 0.45W/mK.
The fiber prepared by the method is easy to dye, and the dye-uptake of the cationic dye reaches 80 percent.
Example 2 acrylic fiber containing plant source extract and collagen micro powder and preparation method thereof
The method comprises the following steps:
1. preparation of plant-derived extract-protein micropowder dispersion
Mixing the collagen micro powder and the plant source extract, adding the mixture into deionized water, stirring and dispersing the mixture uniformly, then vacuumizing the mixture to the pressure of-0.03 MPa, keeping the pressure for 10s, recovering the pressure to normal pressure, heating the mixture to 60 ℃, stirring the mixture at the rotating speed of 700r/min, preserving the temperature for 20min, and cooling the mixture to obtain the plant source extract-protein micro powder dispersion liquid.
The particle size of the collagen micro powder is less than or equal to 1 mu m;
the mass ratio of the collagen micro powder to the plant source extract is 4: 1;
the plant source extract is a mixture of a mint extract and a ginger extract, and the mass ratio of the mint extract to the ginger extract is 5: 1.
The plant source extract-protein micro powder dispersion liquid contains 25% of collagen micro powder by mass.
2. Preparation of Polyacrylonitrile solution
Slowly adding polyacrylonitrile into a dimethyl sulfoxide solvent while stirring, keeping the temperature at 90 ℃ and stirring for 4 hours, cooling to 62 ℃, and filtering to obtain a polyacrylonitrile solution.
The mass ratio of polyacrylonitrile to dimethyl sulfoxide is 1: 5.
The molecular weight of the polyacrylonitrile is 3.5 ten thousand.
3. Preparation of composite dope stock solution
Mixing the prepared plant source extract-protein micropowder dispersion liquid with a polyacrylonitrile solution, adding heat-conducting powder, stirring under the protection of nitrogen gas at 62 ℃, filtering, and defoaming to obtain a composite spinning solution stock solution.
The mass ratio of the collagen micropowder in the plant source extract-protein micropowder dispersion liquid to the polyacrylonitrile is 8%;
the mass ratio of the heat-conducting powder to the polyacrylonitrile is 7%.
4. Spinning
Metering the spinning solution stock solution by a metering pump, extruding the spinning solution stock solution by a spinning nozzle, allowing the spinning solution stock solution to enter a coagulating bath, allowing tows out of the coagulating bath to enter a preheating bath, stretching the fiber by 3 times in the preheating bath, treating the tows by the preheating bath, stretching the tows in a stretching bath tank, stretching the tows twice by a total stretching multiple of 8 times, and performing heat setting, cross-linking bath treatment, oiling and cutting to obtain the finished fiber.
The coagulating bath comprises the following components in parts by weight: 9 parts of dimethyl sulfoxide, 0.7 part of isoamyl alcohol, 2 parts of n-butanol and 92 parts of water, wherein the temperature is 20 ℃;
the preheating bath comprises the following components in parts by weight: 3 parts of dimethyl sulfoxide, 0.7 part of isoamyl alcohol and 0.9 part of n-butyl alcohol, and the temperature is 65 ℃.
The drawing bath is deionized water and the temperature is 75 ℃;
performing heat setting, performing air bath at 105 ℃ for 30s, and rapidly cooling after heat treatment setting;
the crosslinking bath is 30g/L glyoxal, the crosslinking time is 5min, and the temperature is 40 ℃.
The heat conducting powder comprises mica and silicon carbide, the mass ratio of the mica to the silicon carbide is 1:1, and the particle size D90 is less than or equal to 0.9 micrometer.
The dry strength of the acrylic fiber prepared by the invention is 3.5cN/dtex, the hooking strength is 0.96 cN/dtex, and the water absorption per g of fiber reaches 14 g.
The mass content of the collagen micro powder is 7.7%, the mass content of the plant source extract is 1.8%, and the mass content of the heat-conducting powder is 6.6%; the content is relative to polyacrylonitrile, after washing for 20 times, the mass content of the plant source extract is 1.68%, and the mass content of the collagen micro powder is 7.3%.
The instant contact cool feeling (Q-max) of the fiber prepared by the invention is 0.34W/cm2The resistivity of the fiber is 2 omega cm; no stuffy feeling when wearing the shoes, and the heat conductivity coefficient is 0.48W/mK.
The fiber prepared by the method is easy to dye, and the dye-uptake of the cationic dye reaches 85%.
Unless otherwise specified, the proportions used in the present invention are mass proportions, and the percentages used are mass percentages.
Claims (1)
1. An acrylic fiber containing plant source extract and collagen micro powder is characterized in that: in the acrylic fiber, the mass content of the collagen micro powder is 5.6-7.7%, the mass content of the plant source extract is 1.8-2.7%, and the mass content of the heat-conducting powder is 4.6-6.6%;
the preparation method of the fiber comprises the steps of preparing plant source extract-protein micro powder dispersion liquid, preparing polyacrylonitrile solution, preparing composite spinning solution stock solution and spinning;
the preparation method comprises the steps of preparing the plant source extract-protein micro powder dispersion liquid, mixing collagen micro powder and the plant source extract, adding the mixture into deionized water, stirring and dispersing the mixture uniformly, vacuumizing the mixture to a pressure of-0.02 to-0.03 MPa, keeping the pressure for 10 to 15s, recovering the pressure to normal pressure, heating the mixture to 50 to 60 ℃, stirring the mixture at a rotating speed of 500 plus one minute for 10 to 20min, and cooling the mixture to obtain the plant source extract-protein micro powder dispersion liquid;
the particle size of the collagen micro powder is less than or equal to 1 mu m; the plant source extract is a mixture of a mint extract and a ginger extract, and the mass ratio of the mint extract to the ginger extract is 5: 1;
the preparation method comprises the steps of preparing a polyacrylonitrile solution, dissolving polyacrylonitrile by using dimethyl sulfoxide, wherein the mass ratio of the polyacrylonitrile to the dimethyl sulfoxide is 1:4-5, and the molecular weight of the polyacrylonitrile is 3-3.5 ten thousand;
preparing a composite spinning solution stock solution, mixing the prepared plant source extract-protein micro powder dispersion solution with a polyacrylonitrile solution, adding heat-conducting powder, stirring under the condition of charging nitrogen at the temperature of 60 +/-2 ℃ for protection, filtering and defoaming to obtain the composite spinning solution stock solution;
the heat-conducting powder comprises mica and silicon carbide, the mass ratio of the mica to the silicon carbide is 1:1, and the particle size is D90 which is less than or equal to 0.9 micron;
in the spinning, the composite spinning solution stock solution enters a coagulating bath, the tows out of the coagulating bath enter a preheating bath, are stretched for 2-3 times in the preheating bath, are stretched in a drawing bath, and are subjected to heat setting and cross-linking bath treatment, wherein the total drawing multiple of the two times of stretching is 5-8 times;
the coagulating bath comprises the following components in parts by weight: 7-9 parts of dimethyl sulfoxide, 0.5-0.7 part of isoamyl alcohol, 1-2 parts of n-butyl alcohol and 90-92 parts of water at the temperature of 15-20 ℃;
the preheating bath comprises the following components in parts by weight: 2-3 parts of dimethyl sulfoxide, 0.4-0.7 part of isoamyl alcohol and 0.5-0.9 part of n-butyl alcohol at the temperature of 60-65 ℃;
the drawing bath is deionized water and the temperature is 70-75 ℃;
the heat setting and air bath are carried out at the temperature of 100-; the crosslinking bath is 20-30g/L glyoxal, the crosslinking time is 5-10 min, and the temperature is 35-40 ℃.
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| CN1243140C (en) * | 2003-09-03 | 2006-02-22 | 中国皮革和制鞋工业研究院 | Collagen protein-polyacrylonitrile composite fiber and its preparation method |
| CN1294305C (en) * | 2005-03-04 | 2007-01-10 | 东华大学 | Acrylic fiber-crosslinking plant protein composite fiber and method for manufacturing the same |
| CN105332076B (en) * | 2015-12-02 | 2016-10-26 | 山传雷 | A kind of Folium Menthae extract menthol cool feeling material composite modified additive and application thereof |
| CN108301060A (en) * | 2018-03-05 | 2018-07-20 | 厦门安踏体育用品有限公司 | Mint extract microcapsules, acrylic fiber, fabric and relevant preparation method |
| CN108691024A (en) * | 2018-06-29 | 2018-10-23 | 百事基材料（青岛）股份有限公司 | Modified acrylic fibres and preparation method thereof containing plant extracts |
| CN109505017B (en) * | 2018-11-29 | 2021-04-13 | 青岛邦特生态纺织科技有限公司 | Lavender plant source composite cellulose fiber and preparation method thereof |
| CN110241478A (en) * | 2019-05-07 | 2019-09-17 | 中科纺织研究院（青岛）有限公司 | A kind of compound acrylic fibers high molecular material fiber of wormwood micro mist and preparation method thereof |
| CN110592713B (en) * | 2019-05-24 | 2021-12-21 | 苏州峰佳达化纤纺织有限公司 | Preparation method of antibacterial polyacrylonitrile fiber |
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