Graphene electricity and heat conductive coating and preparation method thereof

A technology of electrical and thermal conductivity and graphene, applied in the field of materials, can solve the problems of low electrical and thermal conductivity, poor bonding performance between coatings and substrates, and low service life, and achieves good corrosion resistance, high bonding strength, and good anti-rust performance. Effect

Active Publication Date: 2019-01-15
中山励诺包装制品有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] The purpose of the present invention is to provide a graphene conductive and thermally conductive coating and a preparation method thereof in order to overcome the problems of poor bonding performance between the current coating and the substrate, low service life, and low electrical and thermal conductivity.

Method used

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  • Graphene electricity and heat conductive coating and preparation method thereof

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Embodiment 1

[0047] The graphene conductive and thermally conductive coating described in this embodiment is composed of the following components in parts by weight: 1 part of graphene, 2 parts of carbon nanotubes, 2 parts of sodium silicate, 1 part of varnish oil, 1 part of tung oil, and 0.3 part of maleic anhydride , 3 parts of sodium lignosulfonate dispersant, 1 part of acrylic resin, 0.05 part of cobalt drier, 1 part of silane coupling agent, 0.2 part of silicon dioxide, 0.2 part of compound additive ethylene glycol, 0.5 part of lignocellulose , 1.5 parts of zeolite powder, 1 part of thermal conductive metal silver powder, 40 parts of 60% ethanol.

[0048] A method for preparing graphene conductive and thermally conductive coatings, specifically comprising the following steps:

[0049] (1) Add lacquer oil, tung oil, maleic anhydride, and acrylic resin respectively and heat to 65°C, 500r / min, stir evenly, for 20min, keep warm for later use;

[0050] (2) Mix graphene, carbon nanotubes, ...

Embodiment 2

[0055] The graphene conductive and thermally conductive coating described in this embodiment is made up of the following components in parts by weight: 10 parts of graphene, 5 parts of carbon nanotubes, 5 parts of sodium silicate, 3 parts of lacquer oil, 3 parts of tung oil, and 1.5 parts of maleic anhydride , 5 parts of sodium lauryl sulfate as a dispersant, 3 parts of acrylic resin, 0.5 parts of zinc drier, 3 parts of titanate coupling agent, 1 part of silicon dioxide, 1 part of compound additive 1,2-propylene glycol, 2 parts of hydroxypropyl methylcellulose, 2 parts of zeolite powder, 8 parts of heat-conducting metal copper powder, 60 parts of 80% ethanol.

[0056] A method for preparing graphene conductive and thermally conductive coatings, specifically comprising the following steps:

[0057] (1) Add lacquer oil, tung oil, maleic anhydride, and acrylic resin respectively and heat to 75°C, 1000r / min, stir evenly, for 40min, keep warm for later use;

[0058] (2) Mix graphe...

Embodiment 3

[0063] The graphene conductive and thermally conductive coating described in this embodiment is made up of the following components in parts by weight: 5 parts of graphene, 3 parts of carbon nanotubes, 3 parts of sodium silicate, 2 parts of lacquer oil, 2 parts of tung oil, and 1 part of maleic anhydride , 4 parts of dispersant (sodium lignosulfonate, sodium lauryl sulfate, mass ratio 3:1), 2 parts of acrylic resin, composite drier (cobalt drier, zinc drier, mass ratio 1: 1) 0.2 parts, 2 parts of silane coupling agent, 0.6 parts of silicon dioxide, 0.6 parts of compound additive 1,3-propanediol, 1.3 parts of sodium carboxymethyl cellulose, 1.8 parts of zeolite powder, 4 parts of thermal conductive metal aluminum powder, 50 parts of 70% ethanol.

[0064] A method for preparing graphene conductive and thermally conductive coatings, specifically comprising the following steps:

[0065] (1) Add lacquer oil, tung oil, maleic anhydride, and acrylic resin respectively and heat to 70...

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Abstract

The invention discloses a graphene electricity and heat conductive coating and a preparation method thereof. The graphene electricity and heat conductive coating is composed of the following components in parts by weight: 1-10 parts of graphene, 2-5 parts of carbon nano tubes, 2-5 parts of sodium silicate, 1-3 parts of paint oil, 1-3 parts of tung oil, 0.3-1.5 parts of maleic anhydride, 3-5 partsof a dispersing agent, 1-3 parts of acrylic resin, 0.05-0.5 part of a composite drier, 1-3 parts of a coupling agent, 0.2-1 part of silicon dioxide, 0.2-1 part of a composite additive, 0.5-2 parts ofmodified cellulose, 1.5-2 parts of zeolite powder, 1-8 parts of heat-conducting metal powder and 40-60 parts of ethanol. The graphene electricity and heat conductive coating prepared by spraying and printing can be applied to the fields of semiconductor materials, conductive and heat-conducting composite materials and the like, and has relatively strong application value.

Description

technical field [0001] The invention relates to the technical field of materials, in particular to a graphene conductive and thermally conductive coating and a preparation method thereof. Background technique [0002] Coating is a kind of coating on the surface of objects by different construction techniques to form a continuous solid film with strong adhesion and certain strength. The film formed in this way is commonly called a coating film, also known as a paint film or a coating. "Coatings have protective functions, decorative functions and other basic functions. With the development of the times, the requirements for coatings are getting higher and higher. With the increasing emphasis on environmental issues and energy issues around the world, traditional coatings have been unable to meet Realistic demand, environment-friendly coatings and multi-functional coatings are the direction that countries all over the world are striving to develop. [0003] Conductive and hea...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D4/06C09D5/24C09D5/10C09D5/16C09D7/61
CPCC09D4/06C09D5/10C09D5/103C09D5/1687C09D5/18C09D5/24
Inventor 周亚君黄振雄
Owner 中山励诺包装制品有限公司
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