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Method for preparing polyaniline composite nano silver conductive fibers

A conductive fiber, polyaniline technology, applied in the direction of fiber type, fiber treatment, textile and papermaking, etc., can solve the problems of poor washing resistance, poor spinning performance, high price, etc., and achieve improved conductivity and good conductivity. , the effect of improving electrical conductivity

Inactive Publication Date: 2014-03-19
翔瑞(泉州)纳米科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Stainless steel fibers have better electrical conductivity and mechanical properties, but for textile processing, the cohesion of metal fibers is small, the spinning performance is poor, and the price is expensive when made into high fineness, so except for some special requirements, The use of metal fibers is not widespread enough in the development of antistatic products
Metal-plated fibers are coated with a metal layer on the surface of ordinary fibers to improve the antistatic effect. Its cost is significantly lower than that of metal fibers, but it is not resistant to washing and has poor hand feeling.

Method used

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  • Method for preparing polyaniline composite nano silver conductive fibers
  • Method for preparing polyaniline composite nano silver conductive fibers

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] 1) Preparation of conductive coating solution

[0028] The polyaniline particles pulverized by a mortar and a formic acid solution with a mass fraction of 60% were prepared into a conductive coating solution.

[0029] 2) Preparation of coated conductive fibers

[0030] The conductive coating solution was coated on the surface of PA6 fiber with a roller fiber coating machine at a winding speed of 50 r / min, and then washed and dried to obtain PANI / PA6 coated conductive fiber A. The temperature of the evaporation tube was controlled at 80 °C.

[0031] 3) In situ synthesis of nano silver-polyaniline layer

[0032] The conductive fiber A was mixed with silver nitrate (AgNO 3 ) in aqueous solution for 0.5h, and then immersed in NaBH with a concentration of 0.2mol / L 4 In an aqueous solution, react at room temperature for 6 hours, and finally wash with ethanol and deionized water respectively, and dry naturally or dry to obtain polyaniline / nano-silver composite conductive f...

Embodiment 2

[0035] 1) Preparation of conductive coating solution

[0036] The polyaniline particles pulverized by a mortar and a formic acid solution with a mass fraction of 65% were prepared into a conductive coating solution.

[0037] 2) Preparation of coated conductive fibers

[0038] The conductive coating solution was coated on the surface of PA6 fiber with a roller fiber coating machine at a winding speed of 100r / min, and then washed and dried to obtain PANI / PA6 coated conductive fiber A. The temperature of the evaporation tube was controlled at 100°C.

[0039] 3) In situ synthesis of nano silver-polyaniline layer

[0040] The conductive fiber A was mixed with silver nitrate (AgNO 3 ) in aqueous solution for 0.75h, and then immersed in NaBH with a concentration of 0.5mol / L 4 In an aqueous solution, react at room temperature for 7 hours, and finally wash with ethanol and deionized water respectively, and dry naturally or dry to obtain polyaniline / nano-silver composite conductive ...

Embodiment 3～5

[0042] Embodiment 3~5: preparation method is the same as embodiment 1~2, changes each processing condition, and the results are shown in Table 1:

[0043] Table 1

[0044] serial number

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Abstract

The invention discloses a method for preparing polyaniline composite nano silver conductive fibers. The method comprises the following steps of: 1) preparation of a conductive coating solution, preparing polyaniline particles ground by a mortar and formic acid solutions of different mass fractions into the conductive coating solution, wherein the mass fractions of the formic acid solutions are 60 to 80 percent; 2) preparation of coated conductive fibers: coating the conductive coating solution on the surface of fibers by adopting a roller type fiber coating machine to prepare the coated conductive fibers, and washing and drying the coated conductive fibers to obtain conductive fibers; and 3) in-situ synthesis of a nano silver-polyaniline layer: soaking the conductive fibers A into 0.1 to 1.0mol / L aqueous solution of silver nitrate (AgNO3) for 0.5 to 2 hours, soaking the conductive fibers A into 0.2 to 2 mol / L aqueous solution of NaBH4, reacting for 6 to 10 hours at room temperature, washing by using ethanol and deionized water respectively, performing natural airing or drying, and thus obtaining the polyaniline / nano silver composite conductive fibers. The conductive fibers have high electric conductivity, the electric conductivity of the fibers can be regulated by controlling the process conditions, and different electric conductivity requirements are met.

Description

technical field [0001] The invention relates to a conductive fiber and its preparation method and application, in particular to the preparation method of polyaniline / nanometer silver conductive fiber and its application. Background technique [0002] There are many explanations for the mechanism of static electricity. The static electricity of textile materials is mainly caused by the friction between surfaces. Textile materials are poor conductors of electricity and have high specific resistance. During the production, processing and use of fibers and their products, static electricity is prone to be generated due to factors such as friction, drafting, compression, peeling, electric field induction and hot air drying. Especially with the increasing production and application of synthetic fibers in textiles, the inherent high insulation and hydrophobicity of these high molecular polymers make them very easy to generate and accumulate static electricity. In terms of civilia...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D06M15/61D06M11/83D06M101/32D06M101/34D06M101/28D06M101/24D06M101/20D06M101/22D06M101/38
Inventor 张瑞表庄碧双
Owner 翔瑞(泉州)纳米科技有限公司
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