Conductive coating for plastic surface

A technology of conductive coatings and plastics, applied in conductive coatings, anti-corrosion coatings, polyester coatings, etc., can solve problems affecting conductivity and light transmission, graphene agglomeration, and restrictions, so as to improve electrical conductivity, improve electrical conductivity, Effect of improving salt spray resistance performance

Inactive Publication Date: 2019-01-08
安庆市泽烨新材料技术推广服务有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the very large surface area of ​​graphene in a single sheet, graphene is very prone to agglomeration in the process of preparing conductive coatings for plastic surfaces, which affects its conductivity and light transmission, and its application is greatly limited; and As a conductive filler, graphene is not very good in terms of corrosion resistance and aging resistance

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] The preparation method of modified graphene comprises the following steps:

[0027] 1) Calculated according to parts by weight, weigh 30 parts of graphene, 8 parts of maleic acid, 4 parts of chitosan, 8 parts of zinc oxide, 1 part of tin chloride and 5 parts of benzylamine;

[0028] 2) dissolving maleic acid in water to prepare an aqueous solution of maleic acid, then adding graphene, and then adding tin chloride for stirring and dispersing to obtain a dispersion;

[0029] 3) Add chitosan and zinc oxide to the dispersion in step 2), stir and disperse, then raise the temperature to 60° C., add benzylamine and keep it warm for 60 minutes, then filter and dry the filtrate.

Embodiment 2

[0031] The preparation method of modified graphene comprises the following steps:

[0032] 1) Calculated according to parts by weight, weigh 40 parts of graphene, 16 parts of maleic acid, 2 parts of chitosan, 4 parts of zinc oxide, 3 parts of tin chloride and 10 parts of benzylamine;

[0033] 2) dissolving maleic acid in water to prepare an aqueous solution of maleic acid, then adding graphene, and then adding tin chloride for stirring and dispersing to obtain a dispersion;

[0034] 3) Add chitosan and zinc oxide to the dispersion in step 2), stir and disperse, then raise the temperature to 80° C., add benzylamine and keep it for 30 minutes, then filter and dry the filtrate.

Embodiment 3

[0036] A conductive paint for plastic surface, calculated in parts by weight, comprising the following components:

[0037] 65 parts of water-based acrylic resin, 20 parts of water-based alkyd resin, 7 parts of modified graphene in Example 1, 4 parts of sodium alginate, 2 parts of titanate coupling agent, 9 parts of ethanol, 1 part of polypyrrole nanofiber, 4 parts of ethylene-vinyl acetate copolymer, 1.6 parts of octadecyl dimethyl hydroxyethyl ammonium nitrate, 0.6 parts of polyether defoamer and 120 parts of deionized water.

[0038] Preparation method of conductive paint for plastic surface:

[0039] 1) First mix part of the water-based acrylic resin and all the modified graphene evenly, and then use a ball mill to perform ball milling to obtain a dispersion;

[0040] 2) Mix the remaining water-based acrylic resin, water-based alkyd resin, octadecyl dimethyl hydroxyethyl ammonium nitrate and part of deionized water, and then ball mill with a ball mill to obtain a first-gr...

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PUM

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Abstract

The invention provides conductive coating for a plastic surface. The conductive coating for the plastic surface comprises the following components in parts by weight: 60 to 70 parts of water-based acrylic acid resin, 10 to 30 parts of water-based alkyd resin, 3 to 10 parts of modified graphene, 2 to 6 parts of sodium alginate, 1 to 3 parts of coupling agent, 6 to 12 parts of ethanol, 1 to 2 partsof polypyrrole nanometer fiber, 2 to 6 parts of ethylene-vinyl acetate copolymer, 0.6 to 2.4 parts of dispersing agent, 0.1 to 1 part of defoaming agent and 80 to 160 parts of deionized water, whereinthe modified graphene is mainly prepared from graphene, maleic acid, chitosan, zinc oxide, tin chloride and phenyl-methyl amine. The conductive coating for the plastic surface has excellent electricconductivity and also has high salt spray corrosion resistance.

Description

technical field [0001] The invention belongs to the technical field of coatings, in particular to a conductive coating for plastic surfaces. Background technique [0002] With the development of energy conservation, environmental protection and the information industry, the demand for conductive coatings in high-power LED substrates, flat panel displays, solar panels and other fields has become increasingly strong. Traditional conductive coatings represented by silver conductive coatings, copper conductive coatings, and nickel conductive coatings with added silver powder, copper powder, and nickel powder have good electrical conductivity, but due to the addition of silver and other precious metal materials, this undoubtedly improves the manufacturing efficiency of coatings. cost. [0003] Conductive coating refers to a new type of functional coating that can be applied to non-conductive substrates by various spraying methods, so that it has the ability to conduct current an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D133/00C09D167/08C09D5/24C09D5/08
CPCC08K2003/2296C08L2201/04C08L2205/035C09D5/08C09D5/24C09D133/00C08L67/08C08L5/04C08K9/04C08K3/042C08K9/08C08K3/22C08K13/06
Inventor 汪泽维
Owner 安庆市泽烨新材料技术推广服务有限公司
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