Preparation method of novel electrochromic double woven fabric

Abstract

The invention relates to the field of electrochromic materials, and in particular relates to a preparation method of a novel electrochromic double woven fabric. The preparation method comprises the following steps: mixing a PANI (polyaniline) / polyving akohol emulsion and a polyethylene terephthalate spinning solution, and preparing PANI / polyving akohol electrochromic fibers through a wet spinning method; weaving the PANI / polyving akohol electrochromic fibers and conductive fibers into an electrochromic double woven fabric, wherein the surface layer is a PANI / polyving akohol electrochromic layer, and the inner layer is conductive base cloth; carrying out pretreatment on the electrochromic double woven fabric, uniformly coating the PANI / polyving akohol emulsion on the surface of the conductive base cloth of the electrochromic double woven fabric, and drying; and continuously coating the PANI / polyving akohol emulsion on the surface of the conductive base cloth, sealing and drying. The preparation method provided by the invention is strong in operability and simple in technology, and the electrochromic double woven fabric is high in reversible color change degree and color change sensitivity, good in chemical stability, good in flexibility, and high in electric conductivity.

Description

technical field [0001] The invention relates to the field of electrochromic materials, in particular to a preparation method of a novel electrochromic double-layer fabric. Background technique [0002] Polyaniline (PANI) is a synthetic macromolecular compound, because its main chain contains alternating benzene rings and nitrogen atoms, thus forming a special conductive polymer material. Polyaniline is used in metal because of its good optical quality, fast color conversion, good cycle reversibility, thermal stability, low price of aniline monomer, easy availability of raw materials, simple synthesis method, and unique doping phenomenon. Anti-corrosion technology, electromagnetic shielding technology, anti-static technology, electrochromic, sensor components, catalytic materials and stealth technology and other fields. Compared with other electrochromic materials, polyaniline electrochromic materials have the advantages of fast color conversion speed, long-term "memory" fun...

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Problems solved by technology

[0004] The patent name is: A preparation method of polyaniline composite electrochromic membrane device, patent application number: 201210087341.8, when the emulsion method is used to prepare polymerized polyaniline in this patent application, dodecylbenzenesulfonic acid and Emulsify with distilled water, then add polyvinyl alcohol hydrosol and stir, then add aniline monomer, because polyvinyl alcohol is relatively viscous, and it is not easy to stir evenly, which will cause uneven distribution of polyvinyl alcohol in the solution and affect the quality of polyaniline

[0005] In the present invention, polyaniline and polyvinyl alcohol are wet-spun to produce fibers, and then weaved into electrochromic fabrics. This method has not been reported, and the synthesis process does not cause secondary pollution

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