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Silver nanowire coating solution and transparent conductive film

A technology of transparent conductive films and silver nanowires, which is applied to conductive coatings, conductive layers on insulating carriers, coatings, etc., can solve poor transmittance and haze, poor bending resistance, and silver nanowire film surface High resistance and other problems, achieve low surface resistance, low surface roughness, improve spreadability and smoothness

Pending Publication Date: 2020-02-14
SHENZHEN HUAKE COMM TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Aiming at the problems existing in the prior art, the present invention provides a method for improving the conductive uniformity of the silver nanowire film and brazing its nodes, which solves the problems of high surface resistance and relatively poor bending resistance of the silver nanowire film. Poor foldability, transmittance and haze

Method used

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  • Silver nanowire coating solution and transparent conductive film
  • Silver nanowire coating solution and transparent conductive film
  • Silver nanowire coating solution and transparent conductive film

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0080] Embodiment 1 Water-soluble nanowire coating solution 1

[0081] The mixture of hydroxypropyl methylcellulose and sulfonated polystyrene is used as the dispersion resin, ethylenediamine hydrochloride is used as the flux, FSO-100 is used as the wetting agent, and the mixture of water and isopropanol is used as the solvent to configure nanowires Coating solution, the percentage (wt.%) based on the total weight of the solution is shown in Table 1:

[0082] Table I

[0083]

[0084] The coating solution was coated on a 12 μm PET substrate, and dried in an oven at 130° C. for 3 minutes.

Embodiment 2

[0085] Embodiment 2 Water-soluble nanowire coating solution 2

[0086] The mixture of hydroxypropyl methylcellulose and water-soluble maleic rosin resin is used as the dispersion resin, ethylenediamine hydrochloride is used as the soldering agent, Triton X100 is used as the wetting agent, and the mixture of water and isopropanol is used as the solvent to configure nanowires Coating solution, the percentage (wt.%) based on the total weight of the solution is shown in Table 2:

[0087] Table II

[0088]

[0089] The coating solution was coated on a 12 μm PEN substrate, and dried in an oven at 160° C. for 3 minutes.

Embodiment 3

[0090] Example 3 Organic solvent nanowire coating solution 1

[0091] Using the mixture of cellulose acetate butyrate and water-white rosin as the dispersion resin, ethylenediaminetetraacetic acid as the flux, Sago-9760 as the wetting agent, and the mixture of isopropanol and n-propyl acetate as the solvent, prepare the nanowire coating solution , the percentage (wt.%) based on the total weight of the solution is shown in Table 3:

[0092] Table three

[0093]

[0094] The coating solution was coated on a 10 μm PI substrate, dried in an oven at 80° C. for 30 seconds, and then dried at 180° C. for 1 minute.

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Abstract

The invention relates to the field of nano-optoelectronic material preparation, in particular to a silver nanowire coating solution and a transparent conductive film. Directed at the problems of highsurface resistance, high roughness, poor transmittance, poor haze and the like in existing transparent conductive film, the invention provides a coating solution containing complexing dispersion resinand a melting soldering flux and a transparent conductive film prepared therefrom. The complexing dispersion resin can be complexed with nanowire surface metal ions to improve the distribution uniformity of nanowires in the film, thus improving the spreadability and smoothness of the nanowires and reducing the film surface roughness; the melting soldering flux can braze nodes of the nanowires toform an intercommunicated network structure in the film layer drying process so as to lower the sheet resistance of the film. Therefore, the transparent conductive film has high optical transmittance,low surface resistance, high conductive uniformity, low surface roughness and low haze.

Description

technical field [0001] The invention relates to the field of preparation of nanometer optoelectronic materials, in particular to a silver nanowire coating solution and a transparent conductive film. Background technique [0002] Transparent conductive film is a functional film with high visible light transmittance and certain conductivity. It is widely used as transparent electrodes in liquid crystal displays, touch screens, organic light-emitting diodes and thin-film solar cells, as well as antistatic coatings and electromagnetic shielding layers. . The transparent conductive film can achieve high visible light transmittance and high electrical conductivity at the same time, so it can ensure the simultaneous transmission of visible photons and carriers. So far, the transparent conductive material with the longest history and the best overall performance is tin-doped indium oxide (ITO), which can achieve a square resistance value of less than 10Ω and a resistivity lower tha...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D5/24C09D125/18C09D101/28C09D193/04C09D101/14C08J7/044H01B5/14C08L67/02C08L79/08
CPCC08J2367/02C08J2379/08C08K2201/001C08K2201/011C08L2201/04C08L2201/10C09D5/24C09D101/14C09D125/18C09D193/04H01B5/14C08L1/284C08K13/04C08K7/06C08K5/17C08L1/14C08L93/04
Inventor 强骥鹏曾西平靳世东王海波巫春荣陆华俊肖谢詹世治李晓明
Owner SHENZHEN HUAKE COMM TECH CO LTD
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