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Graphene conductive ink and preparation method thereof

A conductive ink and graphene technology, applied in the field of materials, can solve the problems of poor conductivity, unstable conductivity and easy agglomeration of conductive ink, and achieve the effects of stable conductivity, excellent product performance and easy dispersion.

Inactive Publication Date: 2018-02-09
SHENZHEN GUOCHUANG JIAWEI GRAPHENE TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the invention is to prepare a graphene conductive ink to solve the problem that graphene is difficult to disperse in composite materials and easy to agglomerate, which leads to poor conductivity and unstable conductivity of conductive ink

Method used

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  • Graphene conductive ink and preparation method thereof
  • Graphene conductive ink and preparation method thereof
  • Graphene conductive ink and preparation method thereof

Examples

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preparation example Construction

[0035] A preparation method of graphene conductive ink, comprising the following steps.

[0036] Step 1: Add graphene, cyclohexanone, isophorone, ethylene glycol monobutyl ether, N-methylpyrrolidone, K-30, BYK104S into the dispersion cylinder and disperse with a high-speed disperser, stir and disperse evenly to obtain Initially dispersed graphene dispersion;

[0037] Step 2: Grinding the graphene dispersion with a ball mill, using 1 zirconia ball, grinding until the graphene slurry is ground to a fineness of less than to obtain a coarsely ground graphene slurry;

[0038] Step 3: Add conductive carbon black XE2-B, cellulose acetate butyrate, N-methylpyrrolidone, BYK104S, acrylic resin, and fumed silica to the coarsely ground graphene slurry, and disperse with a high-speed disperser to obtain Graphene slurry;

[0039] Step 4: Grinding the graphene slurry with a nano-sand mill until the fineness of the slurry is ground to within, to obtain finely ground graphene slurry;

[004...

Embodiment example 1

[0044] Implementation case 1: In this embodiment, the mass ratio of each raw material is: 18 parts of few-layer graphene of Shenzhen Guochuang Jiawei Graphene Technology Co., Ltd., 15 parts of acrylic resin, 3 parts of cellulose acetate butyrate, cyclohexane 20 parts of ketone, 10 parts of isophorone, 3 parts of K-30 polyvinylpyrrolidone, 10 parts of N-methylpyrrolidone, 11 parts of ethylene glycol monobutyl ether, 3 parts of adhesion promoter, KH-560 silane coupling 3 parts of agent, 1 part of leveling agent, 2 parts of BYK104S, 1 part of fumed silica.

[0045] A kind of graphene conductive ink provided by the present invention, the preparation steps are as follows: mix 10 parts of graphene with 20 parts of cyclohexanone, 10 parts of isophorone, 11 parts of ethylene glycol monobutyl ether, 5 parts of N-methylpyrrolidone , 3 parts of K-30, and 1 part of BYK104S were added to the dispersion cylinder and dispersed for 30 minutes with a high-speed disperser at 1000 rpm, stirred a...

Embodiment example 2

[0050] Implementation case 2: In this implementation plan, the mass ratio of each raw material is: 12 parts of few-layer graphene from Shenzhen Guochuang Jiawei Graphene Technology Co., Ltd., 6 parts of conductive carbon black XE2-B, 15 parts of acrylic resin, and butyl acetate 3 parts of acid cellulose, 20 parts of cyclohexanone, 10 parts of isophorone, 3 parts of K-30 polyvinylpyrrolidone, 10 parts of N-methylpyrrolidone, 11 parts of ethylene glycol monobutyl ether, 3 parts of adhesion promoter 1 part, 3 parts of KH-560 silane coupling agent, 1 part of leveling agent, 2 parts of BYK104S, 1 part of fumed silica.

[0051] A kind of graphene conductive ink provided by the present invention, the preparation steps are as follows: mix 12 parts of graphene with 20 parts of cyclohexanone, 10 parts of isophorone, 11 parts of ethylene glycol monobutyl ether, 5 parts of N-methylpyrrolidone , 3 parts of K-30, and 1 part of BYK104S were added to the dispersion cylinder and dispersed for ...

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Abstract

The invention provides graphene conductive ink. The graphene conductive ink comprises components as follows: 0.5%-20.0% of a few layers of graphene, 0%-20.0% of carbon nano tubes, 0%-20.0% of conductive carbon black, 0%-20.0% of superfine conductive graphite powder, 15%-45% of resin, 0.1%-5.0% of a wetting dispersant, 30%-70% of a solvent and 0.5%-6% of auxiliaries. The paper-model conductive inkprepared with the method is difficult to disperse in the composite material, and the stability is substantially improved. By means of screening for the dispersant at the earlier stage, graphene can beeasily dispersed in a diluent in a mixing process of graphene powder and the diluent, graphene and other carbon materials are complementary in structure, a three-dimensional conductive network is formed, and therefore, conductivity of conductive ink is quite stable. Graphene conductive ink prepared with the method is excellent in product performance and stable in quality, has lower requirement for equipment and is suitable for industrial production, and the technological process is simple.

Description

technical field [0001] The invention belongs to the technical field of materials, and relates to a preparation method of graphene conductive ink. Background technique [0002] Graphene is the thinnest and hardest nano-material known in the world. It is almost completely transparent and only absorbs 2.3% of light; its thermal conductivity is as high as 5300W / m K, which is higher than that of carbon nanotubes and diamonds. The electron mobility exceeds 15000cm2 / V·s, which is higher than carbon nanotubes or silicon crystals, and the resistivity is only about 1 0-8Ω·m, which is lower than copper or silver. It is the material with the smallest resistivity in the world. As a new nanomaterial with the thinnest, hardest, and strongest electrical and thermal conductivity found so far, graphene is called "black gold" and is the "king of new materials". Scientists even predict that graphene will "completely change the 21st century." ". [0003] Traditional conductive inks are inks co...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D11/52
CPCC09D11/52
Inventor 文钟强李冰王东卫丁显波刘克
Owner SHENZHEN GUOCHUANG JIAWEI GRAPHENE TECH CO LTD
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