CN105821653A - Method for preparing polyacrylonitrile antibacterial fiber - Google Patents
Method for preparing polyacrylonitrile antibacterial fiber Download PDFInfo
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- CN105821653A CN105821653A CN201610237604.7A CN201610237604A CN105821653A CN 105821653 A CN105821653 A CN 105821653A CN 201610237604 A CN201610237604 A CN 201610237604A CN 105821653 A CN105821653 A CN 105821653A
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
- D06M13/322—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing nitrogen
- D06M13/325—Amines
- D06M13/332—Di- or polyamines
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
- D06M11/83—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with metals; with metal-generating compounds, e.g. metal carbonyls; Reduction of metal compounds on textiles
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
- D06M13/10—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing oxygen
- D06M13/12—Aldehydes; Ketones
- D06M13/123—Polyaldehydes; Polyketones
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
- D06M13/10—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing oxygen
- D06M13/144—Alcohols; Metal alcoholates
- D06M13/148—Polyalcohols, e.g. glycerol or glucose
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
- D06M13/10—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing oxygen
- D06M13/184—Carboxylic acids; Anhydrides, halides or salts thereof
- D06M13/207—Substituted carboxylic acids, e.g. by hydroxy or keto groups; Anhydrides, halides or salts thereof
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M16/00—Biochemical treatment of fibres, threads, yarns, fabrics, or fibrous goods made from such materials, e.g. enzymatic
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M2101/00—Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
- D06M2101/16—Synthetic fibres, other than mineral fibres
- D06M2101/18—Synthetic fibres consisting of macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D06M2101/26—Polymers or copolymers of unsaturated carboxylic acids or derivatives thereof
- D06M2101/28—Acrylonitrile; Methacrylonitrile
Abstract
The invention discloses a method for preparing a polyacrylonitrile antibacterial fiber. The method comprises the following steps: firstly, adding polyacrylonitrile fiber into an alcoholic-alkaline solution, performing surface treatment, and subsequently adding an organic amine solution for chemical modification so as to obtain a modified polyacrylonitrile fiber; secondly, adding the modified polyacrylonitrile fiber into an organism solution containing multiple aldehyde groups so as to obtain aminated fiber containing aldehyde groups; finally, soaking the fiber into a silver nitrate solution, washing, and drying, thereby obtaining the polyacrylonitrile antibacterial fiber. The polyacrylonitrile antibacterial fiber prepared by the method is excellent in antibacterial property and good in washablity, and antibacterial components have low probability of dropping off; meanwhile, the method is smart in idea, simple in production process and very good in industrial production property, and the polyacrylonitrile antibacterial fiber can be used as an antibacterial filter for sterilization of air and water bodies, and meanwhile has wide application prospects in clothing textiles and medical sterilization products.
Description
Technical field
The invention belongs to that the preparation method of polyacrylonitrile anti-bacterial fibre, especially preparation method are simple, anti-microbial property is excellent, the preparation method of the anti-bacterial fibre of stable performance.
Background technology
Along with the enhancing of consumer health's consciousness, the people of a new generation to the demand of health-oriented products also in growth progressively.In all antimicrobial products applied, anti-bacterial fibre is environmental protection and the health-oriented products of a new generation, and anti-bacterial fibre is range of application a kind of material widely in functional textile.The preparation method of anti-bacterial fibre is generally two kinds: 1. be addition antimicrobial component in the solution of polymer, then carry out solvent spinning molding and obtain anti-bacterial fibre, the complex manufacturing of this kind of method, and range is limited；2. it is to be supported on antimicrobial component on fibrous matrix by dipping or the mode such as slurry parcel to obtain anti-bacterial fibre.The antimicrobial component using the anti-bacterial fibre that this kind of method prepare easily comes off, and character is unstable, and service life is shorter.Therefore, for the deficiencies in the prior art, the invention provides the preparation method of a kind of polyacrylonitrile anti-bacterial fibre, the method obtains the amination fiber containing aldehyde radical by polyacrylonitrile fibre carries out more modification, owing to amido has the strongest coordination to silver ion, can silver ion absorption on fibrous matrix surface and be fixed by silver ion by chemical bond rapidly, the existence of aldehyde radical can make the silver ion reduction of monovalence obtain elemental silver.So can be fixed the silverskin of dense uniform by the alternating action of aldehyde radical and amido at fiber surface, obtain polyacrylonitrile anti-bacterial fibre.The method step is simple, anti-microbial property is stable, service life is longer, is suitable for amplifying production.
Summary of the invention
It is an object of the invention to provide that a kind of preparation method is simple, stable performance and the preparation method of polyacrylonitrile anti-bacterial fibre that lasts a long time.
For achieving the above object, the present invention provides following technical scheme: the preparation method of a kind of polyacrylonitrile anti-bacterial fibre of the present invention, comprises the following steps:
(1) polyacrylonitrile fibre is put in the aqueous slkali of lower alcohol, at 20 DEG C-100 DEG C, soak 2h-10h, take out fiber subsequently and put in organic amine aqueous solution, at 40 DEG C-120 DEG C, soak 0.5h-20h, take out fiber wash, be dried, i.e. can get modified acrylic fibre；
(2) modified acrylic fibre is put in the organic solution containing many aldehyde radicals and be allowed to be totally submerged, and at 20 DEG C-100 DEG C, impregnate 2h-10h, take out fiber wash, be dried, obtain aldehyde radical polyacrylonitrile fibre；
(3) step (2) gained fiber is put in the aqueous slkali of silver nitrate, take out after soaking 0.1h-1h at room temperature, washing, drying to obtain acrylon anti-bacterial fibre.
In step (1), lower alcohol is the one in methanol, ethanol, propanol, ethylene glycol or mixture, and its volume fraction is 50%-99%.
Alkali in step (1) is the one in sodium hydroxide, potassium hydroxide, calcium hydroxide or its mixture, and the mass concentration of added alkali is 1%-10%.
Organic amine solution in step (1) is the mixed solution of a kind of or its arbitrary proportion in ethylenediamine, diethylenetriamine, triethylene tetramine, polyethylene polyamine.
Organic amine solution in step (1) is 50-100: 1 with the volume ratio of acrylic fiber.
In step (2) at least there are two aldehyde functions in the Organic substance of many aldehyde radicals in organic constitution.
Containing a certain amount of sulphuric acid or hydrochloric acid in the organic solution of the many aldehyde radicals in step (2), the concentration of the organic solution of many aldehyde radicals be the concentration of 0.2%-5%, sulphuric acid or hydrochloric acid be 0.1%-0.5%.
In step (3), silver nitrate is 1: 1 with the mass ratio of sodium hydroxide.
In step (3), the aqueous slkali of silver nitrate needs the pH value by adding proper ammonia or ethylenediamine regulation solution in the range of 8～9.
In step (3) in the solution of silver nitrate, being the auxiliary agent of 0.1%-1.0% containing volume fraction, adjuvant used composition is ethanol, Polyethylene Glycol, polyvinylpyrrolidone or the mixed solution of their arbitrary proportions.
Compared with prior art, the invention has the beneficial effects as follows:
Technique scheme is used to prepare having the beneficial effects that of acrylon anti-bacterial fibre: 1. the anti-microbial property of the anti-bacterial fibre that the present invention prepares is superior, antimicrobial component difficult drop-off, stable performance；2. being skillfully constructed, production technology is simple and is easily achieved industrial amplification production, has huge application prospect in terms of textile clothing, air cleaning and water process sterilizing.
Accompanying drawing explanation
Fig. 1 is integral manufacturing flow chart of the present invention.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is only a part of embodiment of the present invention rather than whole embodiments.Based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art are obtained under not making creative work premise, broadly fall into the scope of protection of the invention.
Refer to Fig. 1, a kind of embodiment that the present invention provides:
The preparation method of a kind of antibacterial polyacrylonitrile fiber, comprises the following steps: step one, prepared by modified acrylic fibre；Step 2, prepared by the amination polyacrylonitrile fibre containing aldehyde radical；Step 3, prepared by acrylon anti-bacterial fibre；
In described step one, polyacrylonitrile fibre is put in the aqueous slkali of lower alcohol, at 20 DEG C-100 DEG C, soak 2h-10h, take out fiber subsequently and put in organic amine aqueous solution, at 40 DEG C-120 DEG C, soak 0.5h-20h, take out fiber wash, be dried, i.e. can get modified acrylic fibre；
In described step 2, modified acrylic fibre is put in the organic solution containing many aldehyde radicals and be allowed to be totally submerged, and at 20 DEG C-100 DEG C, impregnate 2h-10h, take out fiber wash, be dried, obtain the amination polyacrylonitrile fibre containing aldehyde radical；
In described step 3, step 2 gained fiber is put in the aqueous slkali of silver nitrate, take out after soaking 0.1h-1h at room temperature, washing, drying to obtain acrylon anti-bacterial fibre.
Embodiment 1
(1) 1g acrylic fiber is put in the mixed solution of 45ml methanol, 55ml water and 1g sodium hydroxide, at 20 DEG C, soak 2h, take out fiber subsequently and put in diethylenetriamine solution, at 40 DEG C, soak 0.5h, take out fiber wash, be dried, obtain modified acrylic fibre；
(2) modified acrylic fibre is put in the glutaraldehyde solution containing 0.1% hydrochloric acid it is allowed to be totally submerged, and at 20 DEG C, impregnate 2h, take out fiber wash, be dried, obtain aldehyde radical polyacrylonitrile fibre；
(3) adding 0.85g silver nitrate and 0.85g sodium hydroxide in 500ml water, regulating the pH value of this solution with ammonia subsequently is 8, and configuration obtains the aqueous slkali of silver nitrate；Step (2) gained fiber is put in the aqueous slkali of this silver nitrate, and add the Polyethylene Glycol that volume fraction is 0.1%, take out after soaking 0.1h at room temperature, washing, drying to obtain acrylon anti-bacterial fibre.
Embodiment 2
(1) 1g acrylic fiber is put in the mixed solution of 99ml ethylene glycol, 1ml water and 20g sodium hydroxide, at 100 DEG C, soak 10h, take out fiber subsequently and put in triethylene tetramine solution, at 120 DEG C, soak 20h, take out fiber wash, be dried, obtain modified acrylic fibre；
(2) modified acrylic fibre is put in the glucose solution containing 0.5% hydrochloric acid it is allowed to be totally submerged, and at 100 DEG C, impregnate 10h, take out fiber wash, be dried, obtain aldehyde radical polyacrylonitrile fibre；
(3) adding 1.7g silver nitrate and 1.7g sodium hydroxide in 1L water, regulating the pH value of this solution with ammonia subsequently is 9, and configuration obtains the aqueous slkali of silver nitrate；Step (2) gained fiber is put in the aqueous slkali of this silver nitrate, and add the polyvinylpyrrolidone that volume fraction is 1.0%, take out after soaking 1h at room temperature, washing, drying to obtain acrylon anti-bacterial fibre.
Embodiment 3
(1) 1g acrylic fiber is put in the mixed solution of 60ml ethanol, 40ml water and 10g sodium hydroxide, 6h is soaked at 60 DEG C, in taking out fiber subsequently and putting into the mixed solution of ethylenediamine that mass ratio is 1: 1 and polyethylene polyamine, 10h is soaked at 80 DEG C, take out fiber wash, be dried, obtain modified acrylic fibre；
(2) modified acrylic fibre is put in the sodium tartrate solution containing 0.3% hydrochloric acid it is allowed to be totally submerged, and at 60 DEG C, impregnate 6h, take out fiber wash, be dried, obtain aldehyde radical polyacrylonitrile fibre；
(3) adding 1.0g silver nitrate and 1.0g sodium hydroxide in 800mL water, regulating the pH value of this solution with ammonia subsequently is 8.5, and configuration obtains the aqueous slkali of silver nitrate；Step (2) gained fiber is put in the aqueous slkali of this silver nitrate, and add the ethanol that volume fraction is 0.5%, take out after soaking 0.5h at room temperature, washing, drying to obtain acrylon anti-bacterial fibre.
It is obvious to a person skilled in the art that the invention is not restricted to the details of above-mentioned one exemplary embodiment, and without departing from the spirit or essential characteristics of the present invention, it is possible to realize the present invention in other specific forms.Therefore, no matter from the point of view of which point, embodiment all should be regarded as exemplary, and be nonrestrictive, the scope of the present invention is limited by claims rather than described above, it is intended that all changes fallen in the implication of equivalency and scope of claim included in the present invention.
Claims (9)
1. a preparation method for antibacterial polyacrylonitrile fiber, comprises the following steps: step one, prepared by modified acrylic fibre；Step 2, prepared by the amination polyacrylonitrile fibre containing aldehyde radical；Step 3, prepared by acrylon anti-bacterial fibre；It is characterized in that:
In described step one, polyacrylonitrile fibre is put in the aqueous slkali of lower alcohol, at 20 DEG C-100 DEG C, soak 2h-10h, take out fiber subsequently and put in organic amine aqueous solution, at 40 DEG C-120 DEG C, soak 0.5h-20h, take out fiber wash, be dried, i.e. can get modified acrylic fibre；
In described step 2, modified acrylic fibre is put in the organic solution containing many aldehyde radicals and be allowed to be totally submerged, and at 20 DEG C-100 DEG C, impregnate 2h-10h, take out fiber wash, be dried, obtain the amination polyacrylonitrile fibre containing aldehyde radical；
In described step 3, step 2 gained fiber is put in the aqueous slkali of silver nitrate, take out after soaking 0.1h-1h at room temperature, washing, drying to obtain acrylon anti-bacterial fibre.
The preparation method of acrylon anti-bacterial fibre the most according to claim 1, it is characterized in that: described lower alcohol is the one in methanol, ethanol, propanol, ethylene glycol or mixture, its volume fraction is 50%-99%, described alkali is the one in sodium hydroxide, potassium hydroxide, calcium hydroxide or mixture, and the mass concentration of added alkali is 1%-10%.
The preparation method of anti-bacterial acrylon fiber the most according to claim 1, it is characterised in that: at least there are two aldehyde functions in organic constitution in the Organic substance of described many aldehyde radicals.
The preparation method of anti-bacterial acrylon fiber the most according to claim 1, it is characterised in that: described organic amine solution is the mixed solution of a kind of or its arbitrary proportion in ethylenediamine, diethylenetriamine, triethylene tetramine, polyethylene polyamine.
The preparation method of anti-bacterial acrylon fiber the most according to claim 1, it is characterised in that: described organic amine solution is 50-100: 1 with the volume ratio of acrylic fiber.
The preparation method of anti-bacterial acrylon fiber the most according to claim 1, it is characterized in that: containing a certain amount of sulphuric acid or hydrochloric acid in the organic solution of described many aldehyde radicals, the concentration of the organic solution of many aldehyde radicals be the concentration of 0.2%-5%, sulphuric acid or hydrochloric acid be 0.1%-0.5%.
The preparation method of anti-bacterial acrylon fiber the most according to claim 1, it is characterized in that: the preparation condition of the aqueous slkali of described silver nitrate is silver nitrate and the mass ratio of sodium hydroxide is 1: 1, by adding the pH value of proper ammonia or ethylenediamine regulation solution in the range of 8～9.
The preparation method of anti-bacterial acrylon fiber the most according to claim 1, it is characterized in that: in described silver nitrate solution, containing volume fraction be 0.1%-1.0% auxiliary agent, adjuvant used composition is ethanol, Polyethylene Glycol, polyvinylpyrrolidone or the mixed solution of their arbitrary proportions.
The preparation method of anti-bacterial acrylon fiber the most according to claim 1, it is characterised in that: described all baking temperatures are all in the range of 70 DEG C～100 DEG C.
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| CN201610237604.7A CN105821653A (en) | 2016-04-18 | 2016-04-18 | Method for preparing polyacrylonitrile antibacterial fiber |
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| CN201610237604.7A CN105821653A (en) | 2016-04-18 | 2016-04-18 | Method for preparing polyacrylonitrile antibacterial fiber |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107119339A (en) * | 2017-05-15 | 2017-09-01 | 重庆慧思克科技有限公司 | Non-woven fabrics and its fibrous raw material preparation method, bonded fabric product |
| CN107164945A (en) * | 2017-05-15 | 2017-09-15 | 重庆慧思克科技有限公司 | Composite bed non-woven fabrics preparation method, bonded fabric product |
| CN107385869A (en) * | 2017-06-28 | 2017-11-24 | 常州市雄图纺织有限公司 | A kind of preparation method of anti-bacterial fibre |
| CN108212124A (en) * | 2017-12-31 | 2018-06-29 | 邯郸派瑞电器有限公司 | A kind of PAN-PEI amidos chelate fibre and preparation method thereof |
| CN109137506A (en) * | 2018-08-02 | 2019-01-04 | 浙江菲波新材料科技有限公司 | The preparation method of novel polypropylene nitrile fibrous material |
| CN109142124A (en) * | 2018-08-30 | 2019-01-04 | 必维申优质量技术服务江苏有限公司 | A kind of improved modified acrylic fibre qualitative and quantitative analysis method |
| CN109939651A (en) * | 2018-12-31 | 2019-06-28 | 邯郸派瑞电器有限公司 | A kind of ZnO/PAN composite material, preparation method and application |
| CN114016296A (en) * | 2021-11-01 | 2022-02-08 | 邯郸派瑞电器有限公司 | Method for preparing solid aldehyde cloth by two-step method |
| CN114214749A (en) * | 2021-11-29 | 2022-03-22 | 江苏辰安泰生物医药研究院有限公司 | Antibacterial halamine derivative modified acrylic fiber and preparation method thereof |
| CN114875678A (en) * | 2022-05-12 | 2022-08-09 | 安徽恒益纺织科技有限公司 | Multifunctional conductive yarn and preparation method thereof |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107119339A (en) * | 2017-05-15 | 2017-09-01 | 重庆慧思克科技有限公司 | Non-woven fabrics and its fibrous raw material preparation method, bonded fabric product |
| CN107164945A (en) * | 2017-05-15 | 2017-09-15 | 重庆慧思克科技有限公司 | Composite bed non-woven fabrics preparation method, bonded fabric product |
| CN107385869A (en) * | 2017-06-28 | 2017-11-24 | 常州市雄图纺织有限公司 | A kind of preparation method of anti-bacterial fibre |
| CN108212124A (en) * | 2017-12-31 | 2018-06-29 | 邯郸派瑞电器有限公司 | A kind of PAN-PEI amidos chelate fibre and preparation method thereof |
| CN109137506A (en) * | 2018-08-02 | 2019-01-04 | 浙江菲波新材料科技有限公司 | The preparation method of novel polypropylene nitrile fibrous material |
| CN109142124A (en) * | 2018-08-30 | 2019-01-04 | 必维申优质量技术服务江苏有限公司 | A kind of improved modified acrylic fibre qualitative and quantitative analysis method |
| CN109142124B (en) * | 2018-08-30 | 2020-12-08 | 必维申优质量技术服务江苏有限公司 | Improved qualitative and quantitative analysis method for modified polyacrylonitrile fiber |
| CN109939651A (en) * | 2018-12-31 | 2019-06-28 | 邯郸派瑞电器有限公司 | A kind of ZnO/PAN composite material, preparation method and application |
| CN114016296A (en) * | 2021-11-01 | 2022-02-08 | 邯郸派瑞电器有限公司 | Method for preparing solid aldehyde cloth by two-step method |
| CN114214749A (en) * | 2021-11-29 | 2022-03-22 | 江苏辰安泰生物医药研究院有限公司 | Antibacterial halamine derivative modified acrylic fiber and preparation method thereof |
| CN114875678A (en) * | 2022-05-12 | 2022-08-09 | 安徽恒益纺织科技有限公司 | Multifunctional conductive yarn and preparation method thereof |
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Application publication date: 20160803 |