Novel method for preparing polyaniline composite conductive fabric

Abstract

The invention relates to a novel method for preparing a polyaniline composite conductive fabric. The novel method for preparing a polyaniline composite conductive fabric is characterized in that a conductive fabric with good conductive properties is prepared from a chemical fiber fabric as a matrix material and polyaniline as a conductive material through an in-situ polymerization method (also known as an in-situ adsorption polymerization method). The novel method for preparing a polyaniline composite conductive fabric adopts an ultrasonic dipping treatment process as an auxiliary process of a base fabric dipping process adopting aniline. Therefore, the novel method for preparing a polyaniline composite conductive fabric has good surface modification effects on a base fabric, is beneficial for depositing a conductive material on fiber surfaces of the base fabric in polymerization and enabling the conductive material to permeate into fibers of the base fabric, and improves conductivity and conductive stability. A conductive fabric prepared by the novel method has high conductivity and good environmental stability, is easy for synthesis, and keeps physical and mechanical properties belonging to fabrics on the basis of acquirement of conductive properties, wherein surface resistance R of the conductive fabric is reduced to a value of 1 to 5 kilo-ohm.

Description

Technical field: [0001] The invention belongs to the field of textile functional materials, and relates to a new method for preparing polyaniline composite conductive fabrics. Background technique: [0002] Among conductive polymer materials, polyaniline (PANI) has relatively low cost, and has the advantages of simple preparation, good stability in air and water, strong charge storage capacity, and high conductivity. It is widely used in the fields of electricity, magnetism, and optics. It has opened up a broad application prospect in the application. The wide range of functional applications of PANI composite conductive fabrics has developed from ordinary antistatic fields to special fields such as electromagnetic shielding (EMI), electronic intelligence, antibacterial and deodorizing, electrochromic, and wave-absorbing stealth materials. The market prospect is broad. This kind of conductive fabric has the characteristics of adjustable electrical conductivity, good environ...

AI Technical Summary

Problems solved by technology

At the same time, in the conductive fabric directly prepared by in-situ polymerization, PANI is adsorbed on the surface of the fabric and penetrates into the interior of the fabric, which does not affect the physical and mechanical properties of the fabric itself, but its conductivity has a certain attenuation with the extension of time, and PANI deposition is unevenly distributed on the fabric, causing uneven electrical conductivity of the fabric

In the use environment of this conductive fabric, the conductivity of PANI is affected by the pH of the washing liquid, and its durability is not ideal

It is not easy to prepare PANI composite conductive fabric with good electrical conductivity. Although its attenuation and electrical stability over time have been improved through the efforts of researchers, this problem has not been completely resolved.

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