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Flexible transparent conductive film and preparation method thereof

A transparent conductive film, flexible technology, applied in the direction of cable/conductor manufacturing, conductive layer on insulating carrier, circuit, etc., can solve the problems of poor performance of transparent conductive film, poisonous In material, high price, etc., and achieve good industry The effect of application prospect, high light transmittance and simple preparation process

Inactive Publication Date: 2017-06-13
NALI OPTICAL MATERIAL DONGGUAN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, ITO has many disadvantages. First of all, In 2 o 3 The price is expensive, which leads to an increase in the overall production cost of the touch screen; secondly, the In material in ITO is toxic, which is harmful to the human body during the preparation and application process, and has certain pollution to the environment; in addition, Sn and In are large atomic weight elements. In the process of preparing ITO, Sn and In atoms easily penetrate the surface of the substrate and enter the substrate, poisoning the substrate material; and the performance of the obtained transparent conductive film is not very good

Method used

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  • Flexible transparent conductive film and preparation method thereof

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preparation example Construction

[0038] The present invention also provides a method for preparing a flexible transparent conductive film, comprising: respectively coating a first protective film layer and a second protective film layer on both sides of the use layer;

[0039] Wherein, the use layer is prepared according to the following method:

[0040] Coating the first UV hardening layer and the second UV hardening layer on both sides of the PET substrate respectively, and coating the anti-blue light layer and the conductive layer on the second hardening layer in turn;

[0041] The conductive layer is prepared according to the following method: with zinc acetate and Al(NO 3 ) 3 .9H 2 O is used as a raw material, and a conductive layer is obtained through liquid phase deposition and annealing. According to the present invention, the present invention coats the first protective film layer and the second protective film layer respectively on both sides of the use layer; wherein, the materials used in the f...

Embodiment 1

[0046] 1) Preparation of use layer

[0047] Mix 100 parts by weight of the solvent, 40 parts by weight of the crosslinking monomer, 20 parts by weight of the prepolymer, and 2 parts by weight of the photoinitiator, and coat the mixed solution on a 23umPET substrate by means of dimple coating. The temperature is about 50-90 degrees, heated in an oven for 30-60s and then cured by ultraviolet light. The energy of UV lamp is about 500-800mJ / cm 2 , to obtain a thickness of 3 μm hardened layer, that is, the substrate coated with the first UV hardened layer and the second UV hardened layer; wherein, the solvent is toluene; the crosslinking monomer is hexanediol diacrylate; the prepolymer is cyclic oxyacrylic resin; the photoinitiator is benzophenone and triethanolamine, and the mass ratio of benzophenone and triethanolamine is 2:1.

[0048] Coat the anti-blue light layer on the substrate coated with the UV hardening layer, specifically, 60 parts by weight of the viscous monomer, 5 p...

Embodiment 2

[0056] 1) Preparation of use layer

[0057] Mix 80 parts by weight of the solvent, 0 parts by weight of the crosslinking monomer, 20 parts by weight of the prepolymer, and 5 parts by weight of the photoinitiator, and coat the mixed solution on a 50umPET substrate by means of dimple coating. The temperature is about 50-90 degrees, heated in an oven for 30-60s, and then cured by ultraviolet light. The energy of the UV lamp is about 500-800mJ / cm2, and a hardened layer with a thickness of 4μm is obtained, that is, the first UV hardened layer and the second UV hardened layer. base material; among them. The solvent is toluene and propylene glycol methyl ether acetate solution with a mass ratio of 1:1; the crosslinking monomer is hexanediol diacrylate; the prepolymer is epoxy acrylic resin; the photoinitiator is benzophenone and triethanolamine , and the mass ratio of benzophenone and triethanolamine is 2:1.

[0058]Coat the anti-blue light layer on the substrate coated with the UV...

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Abstract

The invention provides a flexible transparent conductive film, comprising a first protective film layer, a use layer, and a second protective film layer in sequential contact, wherein, by making the use layer include a first UV hardening layer, a PET-based film layer in sequential contact, material, a second UV hardening layer, an anti-blue light layer and a conductive layer; and the conductive layer is a composite conductive layer composed of zinc oxide and aluminum oxide. Furthermore, the obtained transparent conductive film has high light transmittance and good electrical conductivity. In addition, the preparation process of the transparent conductive film provided by the invention is simple, and the cost of raw materials is low, and has good industrial application prospects.

Description

technical field [0001] The invention relates to the field of protective films, in particular to a flexible transparent conductive film and a preparation method thereof. Background technique [0002] Transparent conductive film is a kind of film that can conduct electricity and has high transparency in the visible light range. It is mainly used as a window material for optoelectronic devices (such as LEDs, thin-film solar cells, etc.); transparent conductive films that are widely concerned are mainly divided into Metal film system and oxide film system; Among them, the metal film system has good conductivity but poor transparency, while the oxide film system has high transparency and poor conductivity. At present, the common transparent conductive film is mainly ITO (tin-doped indium trioxide) transparent conductive film. This conductive film has a large band gap and only absorbs ultraviolet light, not visible light, so it is called "transparent". [0003] At present, tin-do...

Claims

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Application Information

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IPC IPC(8): H01B5/14H01B13/00
CPCH01B5/14H01B13/00
Inventor 朱文峰
Owner NALI OPTICAL MATERIAL DONGGUAN
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