A kind of preparation method of electrochromic double-layer fabric

Abstract

The invention relates to the field of electrochromic materials, in particular to a method for preparing a novel electrochromic double-layer fabric. The polyaniline / polyvinyl alcohol electrochromic fiber is made by spinning method; then the polyaniline / polyvinyl alcohol electrochromic fiber and the conductive fiber are woven into an electrochromic double-layer fabric, in which the surface layer is polyaniline / polyethylene Alcohol electrochromic layer, the inner layer is a conductive base cloth; finally, the electrochromic double-layer fabric is pretreated, and then the polyaniline / polyvinyl alcohol emulsion is evenly applied to the surface of the conductive base cloth layer of the double-layer fabric, and dried ; Continue to apply polyaniline / polyvinyl alcohol emulsion on the surface of the conductive base cloth layer, seal and dry. The preparation method provided by the invention has strong operability and simple process, and the reversible color change and color change sensitivity of the double-layer fabric are high, the chemical stability is good, the softness is good, and the conductivity is high.

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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