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Method for preparing conductive non-woven fabric by using in-situ polymerization method

An in-situ polymerization and non-woven fabric technology, applied in the field of textiles, can solve the problems of poor conductive effect of conductive non-woven fabrics, damage to the conductive structure of the fiber surface, and low efficiency of conductive non-woven fabrics, achieving low energy consumption and low raw material costs , good electrical conductivity and electromagnetic shielding effect

Active Publication Date: 2013-03-20
武汉飞帛丝科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The conductive non-woven fabric obtained by this method has a relatively large resistance, acetylene black is not firmly adsorbed, the resistance value is not uniform and stable, and the conductive structure of the fiber surface is easily damaged during the laying process, which makes the conductive non-woven fabric more effective. Relatively poor
Most of these preparation methods are for surface treatment of fibers, and the efficiency of the prepared conductive nonwovens 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

[0029]According to the above preparation method, prepare conductive monomer and auxiliary agent mixed solution and oxidation initiation system solution, the concentration of anthraquinone-2-sulfonic acid sodium salt is 5g / L, the concentration of pyrrole is 3g / L, and the concentration of ferric nitrate nonahydrate The concentration of 5-sulfosalicylic acid is 6g / L, and the concentration of 5-sulfosalicylic acid is 20g / L; Take a certain quality of spunlace PET non-woven fabric, take the conductive monomer and auxiliary agent solution according to the bath ratio of 1:10, and the solution mass fraction Add 0% surfactant such as Triton X-100 into the mixed solution of conductive monomer and additives, stir evenly, then dip the non-woven fabric in the mixed solution of conductive monomers and additives, drag it back and forth without Spin the fabric so that the non-woven fabric is fully in contact with the solution. After the non-woven fabric is soaked for 2 minutes, take the oxidat...

Embodiment 2

[0031] According to the above preparation method, prepare conductive monomer and auxiliary agent mixed solution and oxidation initiation system solution, the concentration of anthraquinone-2-sulfonic acid sodium salt is 400g / L, the concentration of pyrrole is 30g / L, the concentration of ferric nitrate nonahydrate The concentration of 5-sulfosalicylic acid is 70g / L, and the concentration of 5-sulfosalicylic acid is 20g / L; Take a certain quality of spunlace PET non-woven fabric, take the conductive monomer and auxiliary agent solution according to the bath ratio of 1:100, and make the solution mass fraction Add 1% surfactant such as Triton X-100 into the mixed solution of conductive monomers and additives, stir evenly, then impregnate the non-woven fabric in the solution of conductive monomers and additives, and drag the non-woven fabric back and forth continuously. cloth, so that the non-woven fabric fully contacts the solution. After soaking the non-woven fabric for 20 minutes...

Embodiment 3

[0033] According to the above preparation method, prepare conductive monomer and auxiliary agent mixed solution and oxidation initiation system solution, the concentration of anthraquinone-2,7-sulfonic acid sodium salt is 50g / L, the concentration of pyrrole is 10g / L, iron nitrate nonahydrate The concentration of 5-sulfosalicylic acid is 20g / L, and the concentration of 5-sulfosalicylic acid is 25g / L; take a certain quality of melt-blown PP non-woven fabric, take the conductive monomer and auxiliary agent solution according to the bath ratio of 1:50, and mix the solution Add a surfactant with a mass fraction of 10%, such as Triton X-100, into the mixed solution of conductive monomer and additives, stir evenly, then dip the non-woven fabric in the solution of conductive monomer and additives, and drag it back and forth continuously Non-woven fabric, make the non-woven fabric fully contact with the solution. After soaking the non-woven fabric for 5 minutes, take the oxidation init...

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 relates to a method for preparing conductive non-woven fabric by using an in-situ polymerization method, comprising the following steps of: impregnating the non-woven fabric in a solution consisting of pyrrole, anthraquinone-2-sodium sulfonate or anthraquinone-2,7-sulfonic acid sodium salt and water; dropping a solution consisting of ferric nitrate, 5-sulfosalicylic acid and water into the mixed solution in which the non-woven fabric is impregnated; in the presence of the oxidation of the ferric nitrate, subjecting the pyrrole to in-situ polymerization to synthesize polypyrrole;and forming a conductive layer on the surface of the non-woven fabric through adsorption precipitation of the polypyrrole. The preparation method disclosed by the invention has the advantages of simpleness, low cost, no pollution and mild reaction condition and is suitable for large-scale industrial production. The conductive non-woven fabric prepared by using the preparation method has favorableconductivity, electromagnetic shielding performance, flexible characteristics, and the like.

Description

technical field [0001] The invention relates to a method for preparing conductive non-woven fabrics by in-situ polymerization, which belongs to the technical field of textiles technical background [0002] Polymers have long been considered insulating materials. In 1977, American scientist Allen-J-Haiger and Japanese scientist Hideki Shirakawa discovered that the electrical conductivity of polyacetylene film increased from 10 to 10 after being doped. -6 S / cm increased to 103S / cm, this discovery broke the traditional concept that organic polymers are insulators, and created a new research field - conductive polymers. In subsequent studies, it was found that the conductivity of polypyrrole, polyaniline and other conjugated polymers can reach the level of semiconductor or even metal conductor after doping. At present, conductive polymers have become a new multidisciplinary research field, and have attracted more and more attention from the academic community. Among them, con...

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): D06M15/37D06M13/256
Inventor 王栋蒋海青王凯赵青华徐卫林
Owner 武汉飞帛丝科技有限公司
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