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: 2011-08-31
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. Firstly, the nylon fabric is treated with 20g / L sodium polystyrene sulfonate, two dipping and two rolling, the immersion time is 10 minutes, and the surplus rate is 70% , Dry at 60℃; then immerse the treated cotton cloth in a mixed solution with aniline concentration of 0.1mol / L, ammonium persulfate concentration of 0.1mol / L, and p-toluenesulfonic acid concentration of 0.2mol / L, stirring continuously, reaction Take it out after 20 minutes, wash it thoroughly, and dry it; finally, dope it twice in a 1mol / L hydrochloric acid solution for 30 minutes. After washing and drying, a polyaniline / nylon composite conductive fabric is obtained, with a conductivity of 1.7×10 -5 S / cm.

Embodiment 2

[0020] A preparation method of layer-by-layer self-assembled polyaniline / nylon composite conductive fabric. Firstly, the nylon fabric is treated with 20g / L sodium polystyrene sulfonate, two dipping and two rolling, the immersion time is 10 minutes, and the surplus rate is 70% , Dry at 60℃; then immerse the treated cotton cloth in a mixed solution with aniline concentration of 0.05mol / L, ammonium persulfate concentration of 0.05mol / L, and p-toluenesulfonic acid concentration of 0.2mol / L, stirring continuously, reaction Take it out after 24 minutes, wash it thoroughly, and dry it; finally, dope it twice in a 1mol / L toluenesulfonic acid solution for 30 minutes, wash and dry it to obtain 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. Firstly, the nylon fabric is treated with 20g / L sodium polystyrene sulfonate, two dipping and two rolling, the immersion time is 10 minutes, and the surplus rate is 70% , 60 ℃ drying; then immerse the treated nylon fabric into a mixed solution with aniline concentration of 0.1 mol / L, ammonium persulfate concentration of 0.1 mol / L, and p-toluenesulfonic acid concentration of 0.3 mol / L, stirring continuously, Take it out after reacting for 24 minutes, wash it thoroughly, and dry it; finally, dope it twice in a 1mol / L hydrochloric acid solution for 30 minutes. After washing and drying, a polyaniline / nylon composite conductive fabric is obtained, with a conductivity of 7×10 -5 S / cm.

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Abstract

The present 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 is equals to 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 preparation field of composite conductive fabrics, and particularly relates to a preparation method of layered self-assembled polyaniline / nylon composite conductive fabrics. Background technique [0002] Because of its unique chemical and electrochemical properties, conductive polymer materials have broad application prospects in conductive coatings, secondary batteries, optoelectronic devices, gas sensors, electromagnetic shielding, metal anticorrosion, and stealth technology. [0003] As a kind of conjugated conductive polymer, polyaniline has received extensive attention due to its easy availability of raw materials, simple synthesis, good high temperature resistance and oxidation resistance, special optical properties, and unique doping mechanism. It is currently recognized One of the conductive polymer materials with the most application potential. However, because polyaniline has strong molecular chain rigidity, high polari...

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): 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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