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Conductive fabric and preparation method thereof

A conductive fabric and fabric technology, applied in plant fiber, textile, papermaking, fiber treatment, etc., can solve the problems of cupro ammonia fiber acid and alkali resistance, poor resistance to chlorine bleach, and unclear washing resistance, etc. To achieve the effect of poor washability, short reaction time and low cost

Inactive Publication Date: 2018-06-29
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, cupro ammonia fiber has poor acid and alkali resistance and chlorine bleach resistance, and the washing resistance of conductive fabrics prepared only by physical adsorption in various types of laundry detergent is not clear.
So far, no report has been found on the use of polymer compounds to immobilize silver nanowires on the surface of fibers to prepare conductive fibers and fabrics with high conductivity and washing resistance

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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  • Conductive fabric and preparation method thereof
  • Conductive fabric and preparation method thereof
  • Conductive fabric and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] (1) Preparation of conductive components: Dissolve polyvinyl alcohol completely in water, prepare a 1wt% polyvinyl alcohol aqueous solution, add 100mg of silver nanowires, and stir evenly to obtain a conductive material composed of polymers and 1wt% silver nanowires. components;

[0030] (2) Soak the washed 5cm×5cm×250μm pure cotton fabric in the conductive component prepared in step (1) for 3s, dry, repeat soaking and drying 10 times, so that the surface of the pure cotton fabric is loaded with enough silver nanometers Wire;

[0031] (3) Prepare a 1wt% glutaraldehyde solution, adjust the pH value to 1 with 1M hydrochloric acid, and make the conductive pure cotton fabric in step (2) (see figure 1 ), spray 1mL of glutaraldehyde solution on the surface, put it in an oven, and react at 80°C for 1h, so that the polyvinyl alcohol in the conductive component and the surface of the pure cotton fabric are fully cross-linked. Thoroughly wash with water to remove unreacted glut...

Embodiment 2

[0035] (1) Preparation of conductive components: Dissolve polyvinyl alcohol completely in water, prepare 1wt% polyvinyl alcohol aqueous solution, add 80mg silver nanowires, stir evenly, and obtain polymer and 0.8wt% silver nanowires conductive components;

[0036] (2) Soak the washed 5cm×5cm×250μm chitosan fabric in the conductive component prepared in step (1) for 3s, dry, repeat soaking and drying 8 times, so that the surface of the chitosan fabric is loaded with enough silver nanowires;

[0037] (3) Prepare a 1wt% glutaraldehyde solution, adjust the pH value to 7 with 1M sodium hydroxide, spray 2mL of the glutaraldehyde solution on the surface of the conductive chitosan fabric prepared in step (2), and put it in an oven , and react at 60° C. for 1 h, so that the polyvinyl alcohol in the conductive component and the surface of the chitosan fabric are fully cross-linked. Wash thoroughly with water to remove unreacted glutaraldehyde and polyvinyl alcohol on the surface of th...

Embodiment 3

[0040](1) Preparation of conductive components: Dissolve polyethyleneimine completely in ethanol to prepare a 10wt% polyethyleneimine ethanol solution, add 100mg silver nanowires, stir well, and obtain polymers and 1wt% silver nanowires Conductive components composed of wires;

[0041] (2) Soak the washed 5cm×5cm×250μm chitosan fabric in the conductive component prepared in step (1) for 10s, dry, repeat soaking and drying 5 times, so that the surface of the pure cotton fabric is loaded with enough silver Nanowires;

[0042] (3) prepare 0.5wt% glutaraldehyde solution, adjust the pH value to 7 with 1M hydrochloric acid, spray 5mL of glutaraldehyde solution on the surface of the conductive chitosan fabric prepared in step (2), put it in an oven, React at 80° C. for 1 h to fully cross-link the polyethyleneimine in the conductive component and the surface of the chitosan fabric. Thoroughly wash with water to remove unreacted glutaraldehyde and polyethyleneimine on the surface of ...

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 discloses a conductive fabric and a preparation method thereof. The method comprises the steps: preparing a conductive component by mixing a silver nanowire with a polymer compound solution, immersing the fabric in the conductive component, and carrying out a crosslinking reaction on polymer compound and the surface of the fabric by using a crosslinking agent to prepare a fabric withexcellent conductivity. The fabric prepared by the method fully utilizes the crosslinking effect of the crosslinking agent on the polymer compound in the conductive component and the surface of the fabric, and fixes the silver nanowires on the surface of the fabric to hinder the stripping and peeling off during the washing process of the fabric, thereby preparing the conductive fabric having excellent washing resistance. The preparation process is simple, the reaction condition is mild, and the prepared conductive fabric not only has higher conductivity, but also has good washing resistance at the same time, thereby solving the problem that the conductivity of the conductive fabric prepared by a coating method is drastically decreased as the number of washing is increased. The conductivefabric can be practically applied in the fields of wearable electronic devices, smart clothing, electrode materials and the like.

Description

technical field [0001] The invention relates to the field of smart fabrics, in particular to a conductive fabric and a preparation method thereof. Background technique [0002] Smart clothing has received more and more attention, and fabric electrodes are an important part of the preparation of smart clothing. The electrodes mainly collect various biological signals through contact with the human body and transmit them to the processor to monitor the human heart rate. Although the initial metal conductive fiber fabric has high conductivity, the skin comfort of the fabric is poor and the cost is high. At present, electronic smart clothing mostly uses the coating method to prepare conductive fabrics. There are many reports on the preparation of conductive fabrics by coating the surface of fabrics with conductive polymers such as graphene, carbon nanotubes and poly(3,4-ethylenedioxythiophene). Yapici attached a layer of graphene on the surface of nylon fabric to prepare fabric...

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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IPC IPC(8): D06M11/83D06M15/333D06M15/61D06M13/123D06M101/06D06M101/02
CPCD06M11/83D06M13/123D06M15/333D06M15/61D06M2101/02D06M2101/06
Inventor 钱丽颖覃海明李军荣何北海
Owner SOUTH CHINA UNIV OF TECH
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