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Flexible transparent conductive thin film and preparation method thereof

A transparent conductive film, flexible technology, applied in cable/conductor manufacturing, conductive layer on insulating carrier, conductive material dispersed in non-conductive inorganic material, etc., can solve the problem of poor light transmittance, poor conductivity, disadvantageous large size Chemical device preparation and other issues

Inactive Publication Date: 2015-05-20
SHENZHEN DONGLIHUA TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, the existing nano-silver wire conductive films still have the problems of poor conductivity and poor light transmittance, and the preparation of the existing nano-silver wire conductive films requires two-step coating to achieve, and the preparation process is complicated, which is not conducive to Fabrication of large-scale devices

Method used

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  • Flexible transparent conductive thin film and preparation method thereof
  • Flexible transparent conductive thin film and preparation method thereof
  • Flexible transparent conductive thin film and preparation method thereof

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preparation example Construction

[0045] like figure 2 As shown, the method for preparing a flexible transparent conductive film according to one embodiment can be used to prepare the above-mentioned flexible transparent conductive film. The preparation method of the flexible transparent conductive film comprises the following steps:

[0046] Step S210: Mix the conductive polymer, silver nanowires and cured resin in a solvent to form a conductive ink.

[0047] Wherein, the mass percentage of the conductive polymer, the nano-silver wire and the cured resin is 3-10:5-50:18-25. More preferably, the mass percentage of the conductive polymer, the nano-silver wire and the cured resin is 5:18:23.

[0048] The conductive polymer is selected from polypyrrole, derivatives of polypyrrole, polythiophene, derivatives of polythiophene, polyaniline, derivatives of polyaniline, polyacetylene, derivatives of polyacetylene, and polystyrenesulfonic acid. A sort of.

[0049] Among them, the derivatives of polypyrrole are pol...

Embodiment 1

[0072] The preparation steps of the flexible transparent conductive film of the present embodiment are as follows:

[0073] (1) Place the conductive polymer, cured resin, solvent, plasticizer, coupling agent, defoamer and surfactant in a high-speed mixer and mix them. After mixing evenly, add nano-silver wires and continue to mix and mix. Dispersed to form conductive ink, wherein the mass percentage of conductive polymer, nano-silver wire and cured resin is 5:16:20, the conductive polymer is poly 3,4-ethyldioxypyrrole, and the cured resin is bisphenol A Epoxy resin and F-51 novolac epoxy resin, the diameter of the nano-silver wire is 20-65 nanometers, and the length is 10-30 microns; the solvent is butyl glycidic acid and dibutyl phthalate, and the solvent and the curing resin The mass percent of plasticizer is dioctyl phthalate, and the mass percent of plasticizer and cured resin is 1:18; Coupling agent is butyl titanate, and the ratio of coupling agent and cured resin The m...

Embodiment 2

[0080] The preparation steps of the flexible transparent conductive film of the present embodiment are as follows:

[0081] (1) Place the conductive polymer, cured resin, solvent, plasticizer, coupling agent, defoamer and surfactant in a high-speed mixer and mix them. After mixing evenly, add nano-silver wires and continue to mix and mix. Disperse to form conductive ink, wherein, the mass percentage of conductive polymer, nano-silver wire and cured resin is 5:18:23, and the conductive polymer is poly-m-methoxyaniline and poly(3-lactyl)pyrrole-[2 , 5-bis(p-nitrobenzene)], the cured resin is polyurethane resin (purchased from Xianyang Jingxin Huiming Chemical Co., Ltd.), the diameter of the nano-silver wire is 12~45 nanometers, and the length is 25~40 microns; Solvent is N-vinylpyrrolidone and glycerin, and the mass percent of solvent and cured resin is 2.5:1; Plasticizer is diisooctyl phthalate, and the mass percent of plasticizer and cured resin is 0.8:23; The coupling agent ...

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Abstract

The invention relates to a flexible transparent conductive thin film and a preparation method thereof. The flexible transparent conductive thin film comprises a transparent substrate and a conductive layer, wherein the conductive layer is overlapped on the transparent substrate and is made of conductive polymer, silver nanowires and curing resin, the silver nanowires and the curing resin are dispersed in the curing resin, the silver nanowires are mutually overlapped, the silver nanowires and the conductive polymer form a conductive network, and the conductive polymer is at least one of polypyrrole, polypyrrole derivative, polythiophene, polythiophene derivative, polyaniline, polyaniline derivative, polyacetylene, polyacetylene derivative, and poly (sodium 4-styrenesulfonate). The flexible transparent conductive thin film has the advantages that the conductivity is better, and the transparency rate is higher.

Description

technical field [0001] The invention relates to the field of electronic components, in particular to a flexible transparent conductive film and a preparation method thereof. Background technique [0002] In recent years, transparent conductive films have been widely used in liquid crystal displays, touch panels and solar cells. Transparent conductive films not only require good conductivity, but also have excellent visible light transmittance. Although ITO is currently the most widely studied and applied oxide TCF, its application in flexible electronic devices is limited due to the increasingly scarce raw material resources, complex and expensive vacuum deposition technology, and the brittle nature of the film. [0003] Based on the application limitations of ITO thin films, people are constantly looking for new materials that can replace ITO. From the perspective of market response, the proportion of film products produced by applying new material technology is increasin...

Claims

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Application Information

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IPC IPC(8): H01B1/22H01B1/12H01B1/20H01B5/14H01B13/00
Inventor 胡伟邢光建郭红丽
Owner SHENZHEN DONGLIHUA TECH
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