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Graphene-based durable antibacterial composite clothing fabric

A graphene and long-lasting technology, applied in the direction of clothing, clothing, plant fibers, etc., can solve the problems of poor washability, reduced fabric air permeability, and inability to exert long-lasting antibacterial effects, so as to reduce finishing defects, improve wearability, and finish even effect

Active Publication Date: 2021-03-09
江苏轮廓科技发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Graphene oxide can destroy the cell membrane of bacteria, thereby causing the outflow of intracellular substances and killing bacteria. Since the antibacterial effect of graphene oxide was first discovered experimentally in 2010, a variety of antibacterial fabrics based on graphene have been developed. Most of the existing graphene antibacterial fabrics are prepared by directly setting a bonding coating on the fabric. Directly setting the coating on the fabric will greatly reduce the air permeability of the fabric, and the washability is poor, so it cannot exert lasting antibacterial effect. Effect

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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  • Graphene-based durable antibacterial composite clothing fabric

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preparation example Construction

[0028] The embodiment of the present application relates to a kind of preparation method of graphene-based durable antibacterial composite garment fabric, comprising the following steps:

[0029] (1) Fiber modification

[0030] Dissolve the mercaptosilane coupling agent in ethyl acetate at a mass ratio of 5-20:100 to obtain a modified solution, immerse the cotton fiber in the modified solution, and vibrate in a closed state at room temperature for 1-2 hours. After the reaction is completed, the cotton Squeeze the fiber dry, then rinse with absolute ethanol, and evaporate the solvent under reduced pressure to obtain surface-modified cotton fiber; the mercaptosilane coupling agent is 3-mercaptopropyltrimethoxysilane or 3-mercaptopropyltriethyl Oxysilane or a combination of both;

[0031] The main component of cotton fiber is cellulose, and the surface contains a large number of hydroxyl groups. The silane coupling agent covalently grafts the mercapto coupling agent to the cotto...

Embodiment 1

[0055] A kind of durable antibacterial composite garment fabric based on graphene, its preparation method comprises the following steps:

[0056] (1) Fiber modification

[0057] Dissolve 3-mercaptopropyltrimethoxysilane in ethyl acetate at a mass ratio of 1:10 to obtain a modified solution, immerse cotton fibers in the modified solution, and vibrate for 1-2 hours at room temperature, after the reaction is completed Squeeze the cotton fiber dry, rinse it with absolute ethanol, and evaporate the solvent under reduced pressure to obtain surface-modified cotton fiber;

[0058] (2) Graphene oxide modification

[0059] Mix chloroform, acetone and triethylamine at a volume ratio of 5:5:1 to obtain a reaction solvent, and ultrasonically disperse graphene oxide in the solvent at a dispersion ratio of 0.3-0.4g / L, adding graphene oxide Add 0.4mol / g of acryloyl chloride, stir and react at a constant temperature of 35-40°C for 20-24h, add absolute ethanol to dilute after the reaction is ...

Embodiment 2

[0071] A kind of durable antibacterial composite garment fabric based on graphene, its preparation method comprises the following steps:

[0072] (1) Fiber pretreatment

[0073] Soak and clean the cotton linter fiber after impurity removal in hot sodium hydroxide solution, rinse with water after soaking, and dry at 70-90°C to obtain pretreated cotton fiber;

[0074] (2) Fiber modification

[0075] Dissolve 3-mercaptopropyltrimethoxysilane in ethyl acetate at a mass ratio of 1:10 to obtain a modified solution, immerse cotton fibers in the modified solution, and vibrate for 1-2 hours at room temperature, after the reaction is completed Squeeze the cotton fiber dry, rinse it with absolute ethanol, and evaporate the solvent under reduced pressure to obtain surface-modified cotton fiber;

[0076] (3) Graphene oxide modification

[0077] Mix chloroform, acetone and triethylamine at a volume ratio of 5:5:1 to obtain a reaction solvent, and ultrasonically disperse graphene oxide in...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Abstract

The invention provides a method for preparing a graphene-based durable antibacterial composite clothing fabric, through the reaction of alkenyl acid chloride monomers with hydroxyl groups on the surface of graphene oxide, using triethylamine as an acid-binding agent, and grafting alkenyl double bonds on Graphene oxide, and then carry out mercapto-ene reaction with cotton fibers modified by surface mercapto groups, graft graphene on cotton fibers with covalent bonds, and then spin and weave graphene antibacterial fibers to obtain the Graphene's durable antibacterial composite clothing fabric, this application uses fiber surface modification, and then weaves the surface modified fiber into fabric, so that the fabric can retain the good air permeability of the fabric while obtaining functional modification, and improve the wearability of the fabric , through covalent grafting, the adhesion of graphene on the fiber is improved, and the washing fastness is high.

Description

technical field [0001] The invention relates to the technical field of antibacterial fabrics, in particular to a graphene-based durable antibacterial composite clothing fabric. Background technique [0002] Textile fiber fabrics with a porous structure are easy to absorb bacteria during use, and the sweat and shed sebum from the human body provide rich nutrition for the growth of bacteria, causing bacteria to grow. The growth of bacteria is not only easy to cause cross-infection but also Spread diseases, produce peculiar smell, and easily damage fibers. Therefore, the development of textile fabrics with antibacterial function is one of the inevitable requirements for the development of textiles. [0003] Graphene oxide can destroy the cell membrane of bacteria, thereby causing the outflow of intracellular substances and killing bacteria. Since the antibacterial effect of graphene oxide was first discovered experimentally in 2010, a variety of antibacterial fabrics based on g...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D06M14/22D06M11/74D06M13/513A41D31/30D06M101/06
CPCA41D31/30D06M11/74D06M13/513D06M14/22D06M16/00D06M2101/06
Inventor 崔勇王蓉
Owner 江苏轮廓科技发展有限公司