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Graphene heat radiation paint, preparation method and applications

A technology of heat-dissipating coatings and graphene, applied in polyester coatings, epoxy resin coatings, coatings, etc., can solve the problems of heat conduction and heat dissipation, and achieve the effects of light weight, excellent heat conduction and heat dissipation effects, and high coating strength

Active Publication Date: 2016-01-27
SHENZHEN GUOCHUANG JIAWEI GRAPHENE TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] One of the objectives of the present invention is to provide a graphene heat dissipation coating to solve the problem of difficult heat conduction and heat dissipation in electronic products in the prior art

Method used

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  • Graphene heat radiation paint, preparation method and applications
  • Graphene heat radiation paint, preparation method and applications
  • Graphene heat radiation paint, preparation method and applications

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preparation example Construction

[0045] Correspondingly, the embodiment of the present invention also provides a kind of preparation method of graphene heat dissipation coating, it comprises following preparation steps:

[0046] S01, take each component according to above-mentioned graphene heat-dissipating paint formula;

[0047] S02, mixing and stirring the polymer resin, graphene, one-dimensional carbon nanomaterial, inert solvent and dispersant to obtain a mixed material, and then grinding and dispersing the mixed material to prepare a graphene heat dissipation slurry;

[0048] S03. Add the heat-conducting metal powder, defoamer and inert solvent into the graphene heat-dissipating slurry, and mix uniformly to prepare the graphene heat-dissipating coating.

[0049] Specifically, in the above step S01, the components or preferred components are selected according to the above coating formulation, weighed separately, and ready for use.

[0050]In the above step S02, a stirrer can be selected (the control sp...

Embodiment 1

[0058] In parts by weight, 40 parts of saturated polyester resin (New Pace saturated polyester resin 173), 30 parts of bisphenol A type epoxy resin (E-20, Nanya brand 901 epoxy resin), 30 parts of melamine formaldehyde resin (methyl ether Amino resin 5717) 10 parts, graphene 15 parts, carbon nanofiber (Showa Denko VGCF) 8 parts, thermal conductive metal powder (silver-coated copper powder, spherical ≤10μm) 8 parts, dispersant (polyurethane AFCONA-4010) 4 parts, 2 parts of defoamer (organic silicon AFCONA-2501), 50 parts of propylene glycol methyl ether acetate, 50 parts of butyl acetate.

[0059] (1) Get 15 parts of graphene, dry (100 DEG C bake 2h) in vacuum drying box and remove moisture;

[0060] (2) 40 parts of saturated polyester resin, 30 parts of bisphenol A type epoxy resin, 10 parts of melamine formaldehyde resin, 15 parts of graphene, 8 parts of carbon nanofiber, 4 parts of dispersant, 50 parts of propylene glycol methyl ether acetate Mix and add to the mixer, contr...

Embodiment 2

[0064] In parts by weight, 40 parts of thermosetting acrylic resin (thermosetting acrylic resin 7205, Changxing resin), 30 parts of bisphenol A epoxy resin (E-20, Nanya brand 901 epoxy resin), melamine formaldehyde resin (isobutyl Etherified amino resin 138) 10 parts, graphene 15 parts, carbon nanofiber (Showa Denko VGCF) 8 parts, thermal conductive metal powder 8 parts (silver-coated copper powder, spherical ≤ 10 μm), dispersant (polyurethane AFCONA-4010) 4 parts, 2 parts of defoamer (AFCONA-2501), 50 parts of propylene glycol methyl ether acetate, 50 parts of butyl acetate.

[0065] (1) Get 15 parts of graphene, dry (100 DEG C bake 2h) in vacuum drying box and remove moisture;

[0066] (2) Mix 40 parts of thermosetting acrylic resin, 30 parts of bisphenol A epoxy resin, 10 parts of melamine formaldehyde resin, 15 parts of graphene, 8 parts of carbon nanofiber, 8 parts of dispersant, and 50 parts of propylene glycol methyl ether acetate Add in a mixer, control the speed at 1...

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Abstract

The invention discloses graphene heat radiation paint. The graphene heat radiation paint comprises the following ingredients, by weight, 40-80 parts of high-molecular resin, 5-15 parts of graphene, 1-8 parts of one-dimensional nanomaterials, 1-8 parts of heat conduction metal powder, 0.5-5 parts of dispersing agents, 0.5-5 parts of antifoaming agents and 100-200 parts of inert solvent. The heat conduction metal powder is at least one selected from silver powder, copper powder and aluminum powder and the granularity is 1-20 micrometers. The above paint has good heat radiation and heat conduction functions. The invention also discloses a preparation method for the graphene heat radiation paint. The preparation method mainly comprises processes of stirring, grinding and reblending. Operation is simple, and the cost is low. The graphene heat radiation paint is mainly applied in heat radiation of daily electronic products and also can be applied in spaceflight electronic devices with high requirements because of good heat conduction and heat radiation functions.

Description

technical field [0001] The invention relates to a graphene heat dissipation coating, in particular to a novel structured graphene heat dissipation coating and its preparation method and application. Background technique [0002] With the development of science and technology, electronic products are developing toward miniaturization, light weight, and high power. Electronic products tend to generate a lot of heat during operation. Working under high temperature conditions will seriously affect the working stability, safety and reliability of electronic products. At present, in order to enhance the heat dissipation effect of radiators for electronic products, the main method is to change the structure and material of radiators for electronic products to achieve the purpose of improving the heat dissipation effect. However, these methods are troublesome to process, high in cost, and the heat dissipation effect is not ideal. . The emergence of heat-dissipating functional coat...

Claims

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Application Information

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IPC IPC(8): C09D133/00C09D167/00C09D163/00C09D161/20C09D7/12
Inventor 慈立杰姜宗清刘克丁显波王凤鸣茆胜
Owner SHENZHEN GUOCHUANG JIAWEI GRAPHENE TECH CO LTD
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