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Layer-by-layer self-assembly polyaniline/nylon composite conductive fabric preparation method

A layer-by-layer self-assembly and composite conductive technology, which is applied in the direction of textiles and papermaking, fiber treatment, fiber type, etc., can solve the problem of low electrical conductivity and achieve the effects of less environmental pollution, little change in strength, and good flame retardancy

Inactive Publication Date: 2009-12-30
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The polyaniline / nylon composite fabric prepared by the method of in-situ generation generally does not have enough polyaniline to adhere to the surface of the nylon fabric, and the conductivity is not high

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

[0018] A preparation method of layer-by-layer self-assembled polyaniline / nylon composite conductive fabric. First, the nylon fabric is treated with 20g / L sodium polystyrene sulfonate, two dipping and two rolling, the dipping time is 10min, and the rolling ratio is 70% , and dried at 60°C; then soak the treated cotton cloth in a mixed solution with an aniline concentration of 0.1mol / L, ammonium persulfate concentration of 0.1mol / L, and p-toluenesulfonic acid concentration of 0.2mol / L, stirring continuously, and reacting Take it out after 20 minutes, fully wash and dry; finally do a second doping in 1mol / L hydrochloric acid solution for 30 minutes, after washing and drying, the polyaniline / nylon composite conductive fabric is obtained, and its conductivity is 1.7×10 -5 S / cm.

Embodiment 2

[0020] A preparation method of layer-by-layer self-assembled polyaniline / nylon composite conductive fabric. First, the nylon fabric is treated with 20g / L sodium polystyrene sulfonate, two dipping and two rolling, the dipping time is 10min, and the rolling ratio is 70% , drying at 60°C; then soak the treated cotton cloth in a mixed solution with an aniline concentration of 0.05mol / L, ammonium persulfate concentration of 0.05mol / L, and p-toluenesulfonic acid concentration of 0.2mol / L, stirring continuously, and reacting Take it out after 24 minutes, fully wash and dry; finally do a second doping in 1mol / L toluenesulfonic acid solution for 30 minutes, and after washing and drying, you can get a polyaniline / nylon composite conductive fabric with a conductivity of 1.5×10 -5 S / cm.

Embodiment 3

[0022] A preparation method of layer-by-layer self-assembled polyaniline / nylon composite conductive fabric. First, the nylon fabric is treated with 20g / L sodium polystyrene sulfonate, two dipping and two rolling, the dipping time is 10min, and the rolling ratio is 70% , drying at 60°C; then immerse the treated nylon fabric in a mixed solution with aniline concentration of 0.1mol / L, ammonium persulfate concentration of 0.1mol / L, and p-toluenesulfonic acid concentration of 0.3mol / L, stirring continuously, After reacting for 24 minutes, take it out, fully wash it and dry it; finally, carry out secondary doping in 1mol / L hydrochloric acid solution for 30 minutes, after washing and drying, you can get a polyaniline / nylon composite conductive fabric with a conductivity of 7×10 -5 S / cm.

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 relates a layer-by-layer self-assembly polyaniline / nylon composite conductive fabric preparation method, comprising the following steps: pretreating nylon fabric with 5-40g / L of sodium polystyrene sulfonate solution, performing two-dip-two-rolling, drying the fabric at 40-70 DEG C, soaking the fabric in a acid-doped mixed solution of aniline and ammonium persulfate, stirring the solution continuously, reacting for 15-40min, taking the fabric out to washing fully and drying, repeating the above operations n times (n is not less than 1), finally performing second doping for 15-40min in the acid solution of which the hydrogen ion concentration equals 1mol / L and washing and drying the fabric to obtain the polyaniline / nylon composite conductive fabric. The preparation method of the invention combines the padding technology which is frequently used in dyeing and finishing so that the reaction time is reduced, polyaniline can enter in the nylon fibre fast, the electric conductivity of the composite fabric is increased, and the cost and the pollution to the environment are lower.

Description

technical field [0001] The invention belongs to the field of preparation of composite conductive fabrics, in particular to a method for preparing layer-by-layer self-assembled polyaniline / nylon composite conductive fabrics. Background technique [0002] Due to their unique chemical and electrochemical properties, conductive polymer materials have broad application prospects in the fields of conductive coatings, secondary batteries, optoelectronic devices, gas sensors, electromagnetic shielding, metal anti-corrosion and stealth technology. [0003] As a kind of conjugated conductive polymer, polyaniline has attracted wide attention due to its easy-to-obtain raw materials, simple synthesis, good high temperature resistance and oxidation resistance, special optical properties, and unique doping mechanism. One of the most potential conductive polymer materials. However, due to the strong rigidity of the polyaniline molecular chain, high polarity, refractory melting and insolubi...

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): D06M15/356D06M15/61D06M101/34
Inventor 李戎刘红玉刘高峰宋阳王建庆
Owner DONGHUA UNIV
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