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Layer-by-layer self-assembly carbon nanotube/silver nanowire modified cotton fiber

A technology of layer-by-layer self-assembly and silver nanowires, which is applied in fiber processing, plant fibers, textiles and papermaking, etc., can solve the problems of weak wash fastness, aging, easy adhesion, reproduction and propagation of microorganisms, etc., and achieve excellent electrical conductivity Effect

Inactive Publication Date: 2018-01-09
赵兵
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example: (1) Cotton fiber has the characteristics of large specific surface area and strong moisture absorption capacity, so it is easy to attach, reproduce and spread microorganisms during consumption, which will cause the strength of cotton fiber to decrease, produce stains, fade and smell, and even spread diseases and affect the human body healthy
(2) Excessive ultraviolet radiation can cause skin damage, aging, and even cancer
However, in the above literature, the interaction between AgNWs and cotton fibers is mainly based on physical adsorption in the form of van der Waals force and hydrogen bonds, lacking a firm combination of forces, and its wash fastness is relatively weak.

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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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] (1) Put the cotton fabric in a sodium hydroxide solution with a mass fraction of 20% at a bath ratio of 1:50, react at 90°C for 120 minutes, wash repeatedly with deionized water until it is neutral, and dry it to obtain sodium hydroxide modification Cotton fabric; then redisperse the sodium hydroxide-modified cotton fabric in deionized water at a bath ratio of 1:50, and add trimethylallyl ammonium chloride, including trimethylallyl ammonium chloride and sodium hydroxide The mass ratio of the modified cotton fabric is 1:5, reacted at 60°C for 1 hour, washed repeatedly with deionized water, and dried to obtain the trimethylallyl ammonium chloride modified cotton fabric; the trimethylallyl chloride Re-dispersed ammonium modified cotton fabric in deionized water, bath ratio 1:50, slowly add 10g / L polyamide-amine PAMAM aqueous solution, including PAMAM aqueous solution and trimethylallylammonium chloride modified cotton fabric aqueous solution The volume ratio is 1:5, reacted...

Embodiment 2

[0015] (1) Put the cotton fabric in a sodium hydroxide solution with a mass fraction of 20% at a bath ratio of 1:50, react at 90°C for 120 minutes, wash repeatedly with deionized water until it is neutral, and dry it to obtain sodium hydroxide modification Cotton fabric; then redisperse the sodium hydroxide-modified cotton fabric in deionized water with a bath ratio of 1:50 and add trimethylallyl ammonium chloride, including trimethylallyl ammonium chloride and sodium hydroxide The mass ratio of the modified cotton fabric is 1:7, reacted at 70°C for 6 hours, washed repeatedly with deionized water, and dried to obtain trimethylallyl ammonium chloride modified cotton fabric; Re-dispersed ammonium modified cotton fabric in deionized water, bath ratio 1:50, slowly add 50g / L polyamide-amine PAMAM aqueous solution, including PAMAM aqueous solution and trimethylallylammonium chloride modified cotton fabric aqueous solution The volume ratio is 1:8, reacted at 80°C for 90 minutes, taken...

Embodiment 3

[0017] (1) Put the cotton fabric in a sodium hydroxide solution with a mass fraction of 20% at a bath ratio of 1:50, react at 90°C for 120 minutes, wash repeatedly with deionized water until it is neutral, and dry it to obtain sodium hydroxide modification Cotton fabric; then redisperse the sodium hydroxide-modified cotton fabric in deionized water with a bath ratio of 1:50 and add trimethylallyl ammonium chloride, including trimethylallyl ammonium chloride and sodium hydroxide The mass ratio of the modified cotton fabric is 1:10, reacted at 80°C for 24 hours, washed repeatedly with deionized water, and dried to obtain the trimethylallyl ammonium chloride modified cotton fabric; Re-dispersed ammonium modified cotton fabric in deionized water, bath ratio 1:50, slowly added 100g / L polyamide-amine PAMAM aqueous solution, including PAMAM aqueous solution and trimethylallyl ammonium chloride modified cotton fabric aqueous solution The volume ratio is 1:10, reacted at 90℃ for 120min,...

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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PUM

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Abstract

The invention discloses a layer-by-layer self-assembly carbon nanotube / silver nanowire modified cotton fiber which is prepared by the following steps: preparing cationic cotton fabric from sodium hydroxide, trimethylallylammonium chloride and PAMAM modified cotton fabric; soaking the cationic cotton fabric in a hydroxyl-terminated hyperbranched polymer modified silver nanowire solution and an aminated multiwalled carbon nanotube solution sequentially for self-assembly to finally obtain the carbon nanotube / silver nanowire function cotton fiber. The aminated multiwalled carbon nanotube and the silver nanowire are firmly combined through layer-by-layer self-assembly under electrostatic attraction; therefore, the cotton fiber has excellent performance of conductivity, bacteria resistance, ultraviolet resistance and the like, and has important application value in the fields such as spinning, clothing, wearable equipment and flexible conductive devices.

Description

Technical field [0001] The invention relates to a layer-by-layer self-assembled carbon nanotube / silver nanowire modified cotton fiber, which belongs to the field of nano composite materials. Background technique [0002] Cotton fiber is favored by consumers for its excellent moisture absorption, breathability, comfort, softness, warmth, renewable, degradable and other properties. However, compared with synthetic fibers, the functionality of cotton fibers still lacks. For example: (1) Cotton fiber has the characteristics of large specific surface area and strong moisture absorption ability, so it is easy to attach, multiply and spread microorganisms during the consumption process, which causes cotton fiber strength to decrease, stains, fading and odor, and even spreads diseases and affects the human body. health. (2) Excessive ultraviolet radiation can cause skin damage, aging, and even cancer. (3) In recent years, conductive textiles have gradually become a research hotspot, a...

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 Applications(China)
IPC IPC(8): D06M11/74D06M11/83D06M15/61D06M13/463D06M11/38D06M101/06
Inventor 赵兵
Owner 赵兵