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Graphene thermally conductive coating and preparation method thereof

A heat-conducting coating and graphene technology, applied in the field of coatings, can solve the problems of poor bonding performance between coatings and substrates, low service life, no thermal conductivity, etc., and achieve good wear resistance, good corrosion resistance, and good thermal conductivity. Effect

Active Publication Date: 2015-08-19
NINGBO MORSH TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of the present invention is to provide a graphene thermally conductive coating and a preparation method thereof in order to overcome the problems that most of the current coatings do not have thermal conductivity and the bonding performance between the coating and the substrate is poor and the service life is low.

Method used

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  • Graphene thermally conductive coating and preparation method thereof

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Embodiment 1

[0024] A graphene thermally conductive coating, which is prepared by modifying graphene and nano-diamonds with a particle size of 20nm, the weight ratio of graphene and nano-diamonds is 5:1, and the total amount of graphene and nano-diamonds added accounts for 20% of the graphene thermally conductive coating The percentage of the total amount is 5%. The other components account for 95% of the total amount of the graphene thermally conductive coating, and the proportions of other components in parts by weight are: 20 parts of silica sol, 20 parts of inorganic silicate, 1 part of copper fiber, and 1 part of dispersant 1 part, 0.1 part of leveling agent, 2 parts of defoamer. The components are mixed evenly by ultrasonic stirring according to the ratio.

Embodiment 2

[0026] A graphene thermally conductive coating, which is prepared by modifying graphene and nano-diamonds with a particle size of 200nm. The weight ratio of graphene and nano-diamonds is 1:1, and the total amount of graphene and nano-diamonds added accounts for The percentage of the total amount is 1.5%. Other components account for 98.5% of the total amount of graphene thermally conductive coating, and the ratio of other components by weight is: 50 parts of silica sol, 5 parts of inorganic silicate, 5 parts of copper fiber, 0.1 parts of dispersant 2 parts, 2 parts of leveling agent, 0.1 part of defoamer. The components are mixed evenly by ultrasonic stirring according to the ratio.

Embodiment 3

[0028] A graphene thermally conductive coating, which is prepared by modifying graphene and nano-diamonds with a particle size of 20nm, the weight ratio of graphene and nano-diamonds is 6:1, and the total amount of graphene and nano-diamonds added accounts for The percentage of the total amount is 5%. Other components account for 95% of the total amount of graphene thermally conductive coatings, and the proportions of other components in parts by weight are: 20 parts of bisphenol A novolak epoxy resin, 30 parts of polyaniline, 5 parts of melamine formaldehyde resin 5 parts, epoxy acrylate 5 parts, copper fiber 3 parts, dispersant 1 part, leveling agent 0.1 part, defoamer 1 part. The components are mixed evenly by ultrasonic stirring according to the ratio.

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Abstract

The invention relates to the technical field of coatings, specifically to a novel graphene heat-conducting coating and a preparation method thereof. The novel graphene heat-conducting coating is prepared through modification of graphene and nanometer diamond in a weight ratio of 1-10: 1, wherein the total addition amount of graphene and nanometer diamond accounts for 0.1 to 5% of the total amount of the novel graphene heat-conducting coating. Compared with the prior art, the novel graphene heat-conducting coating has the advantages of good thermal conductivity, good film forming strength, high bonding strength on a substrate, good wear resistance and microhardness, excellent corrosion stability, resistance to both chemicals and high temperature, fast curing, rust protection and ultraviolet resistance.

Description

technical field [0001] The invention relates to the technical field of coatings, in particular to a graphene 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 energy-saving coatings are the development direction of countries all over the world. [0003] Almost all existing devices genera...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D1/00C09D163/02C09D179/02C09D161/28C09D163/10C09D5/00C09D7/12
Inventor 唐长林王樑
Owner NINGBO MORSH TECH
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