Weaving machine and preparation method for conductive fabric

Abstract

The invention discloses a weaving machine and a preparation method for conductive fabric. An aniline gas generator and a plasma polymerization reactor are arranged between a weft accumulator and a weft guide device of the weaving machine in sequence, and fiber to be weaved passes through the aniline gas generator and the plasma polymerization reactor in sequence from the weft accumulator and is led out from the weft guide device. The preparation method for the conductive fabric includes that the fiber to be weaved is performed with polymerization reaction under a plasma condition after absorbing aniline gas, and the conductive fiber is weaved with warps to obtain the conductive fabric. According to the weaving machine, the aniline gas generator and the plasma polymerization reactor are arranged between the weft accumulator and weft guide device, the fiber to be weaved firstly adsorbs aniline through the aniline gas generator, and then the aniline is performed with in situ polymerization in the plasma polymerization reactor to form a poly-aniline conductive coat on the surface of the fiber to be weaved to obtain the conductive fiber; the conductive fiber serves as weft yarns, and the weft yarns are weaved with warps to obtain the conductive fiber. The weaving machine and the preparation method for the conductive fabric are capable of integrating the fiber modification and fabric production.

Description

technical field [0001] The invention belongs to the technical field of conductive fibers, and in particular relates to a loom and a method for preparing conductive fabrics. Background technique [0002] Conductive fiber is a functional fiber that eliminates static electricity through electron conduction and corona discharge. It has good conductivity and durability, and has a wide range of applications in industrial and civil fields. The conductive fabric made of conductive fiber has excellent functions such as electric conduction, heat conduction, shielding, and electromagnetic wave absorption. It is widely used in conductive mesh and conductive work clothes in the electronics and electric power industries; , aerospace, and electromagnetic frequency shields in the precision electronics industry, etc. [0003] Conductive fibers are divided into metal-based conductive fibers, carbon black-based conductive fibers, conductive polymer fibers and metal compound-type conductive fi...

AI Technical Summary

Problems solved by technology

Taking polyaniline as an example of a conductive fiber with a conductive coating, the preparation method is as follows: immerse the ordinary fiber in an aniline acidic medium containing a swelling agent and a catalyst containing copper ions, and then polymerize after dipping in an oxidizing agent solution to obtain a conductive fiber. Not only the preparation process is complicated, but also consumes a lot of reagents and produces a lot of waste water

Especially for chemical fibers that are difficult to modify such as polyester and acrylic fibers, this method not only consumes a large amount of reagents and produces a large amount of waste water, but also has uneven deposition of aniline, resulting in uneven polyaniline coating in the conductive fibers, poor bonding fastness and conductivity. Poor ability

[0005] In order to improve the bonding fastness between polyaniline and processed chemical fibers, such as polyester (PET), acrylic fiber (PAN), etc., and to improve the electrical conductivity of composite fibers, some people use low-temperature plasma pretreatment on polyester or acrylic fibers first, and then use Aniline is oxidatively polymerized by a wet chemical method to form a polyaniline conductive coating. The conductive polyaniline polyester composite fiber prepared by this method has the characteristics of good electrical conductivity and excellent antistatic performance. However, in the wet preparation process, the solution Aniline monomer, acidic medium and oxidant are indispensable. Not only the pretreatment is complicated, the reaction time is long, the reagent consumption is large, but also a large amount of waste water is generated.

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