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Graphene heat-dissipation coating and preparation method thereof

A technology of heat dissipation coating and graphene, applied in the field of coatings, can solve the problems of reducing the protection effect of the substrate, reducing the stability and strength of the coating film, poor compatibility with the polymer matrix, etc., so as to improve the heat dissipation effect and improve the uniform stability strength. , the effect of improving stability

Inactive Publication Date: 2018-07-20
温州市赢创新材料技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, in order to improve the heat dissipation performance of powder coatings, various heat dissipation additives are often added to it, including carbon nanotubes, aluminum nitride, silicon nitride, aluminum oxide, beryllium oxide, magnesium oxide, silicon carbide, etc. These traditional heat dissipation aids The principle of heat conduction of the agent is roughly: its own high thermal conductivity or the formation of connected channels inside the polymer matrix to improve the heat dissipation effect, but these inorganic fillers have poor compatibility with the polymer matrix, which easily reduces the stability and strength of the coating film. Reduced protective effect on the substrate

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Embodiment 1 A kind of graphene heat-dissipating coating, it is made up of the raw material of following weight part:

[0024] Graphene oxide 15, high-density polypropylene 120, organic porous filler 10, triethanolamine 1, aluminum nitride 3, β-hydroxyalkylamide 0.5, butyl tin mercaptide 0.1, sp-80 0.4, polybenzimidazole 0.1 , Zinc ricinoleate 0.7.

[0025] Described organic porous filler is made up of the raw material of following weight part:

[0026] Diatomaceous earth 10, sodium dodecylbenzene sulfonate 1, aluminum dihydrogen phosphate 2, pyromellitic dianhydride 10, ammonium persulfate 0.4, trichloroisocyanuric acid 1.

[0027] The preparation method of described organic porous filler comprises the following steps:

[0028] (1) Take diatomite, calcinate at 700°C for 1 hour, cool to room temperature, grind into fine powder, mix with sodium dodecylbenzenesulfonate, add to deionized water twice the weight of the mixture, Keep stirring at ℃ for 10 minutes, add alumi...

Embodiment 2

[0038] Embodiment 2 A kind of graphene heat-dissipating coating, it is made up of the raw material of following weight part:

[0039] Graphene oxide 20, high-density polypropylene 131, organic porous filler 13, triethanolamine 2, aluminum nitride 4, β-hydroxyalkylamide 1, butyl tin mercaptide 0.2, sp-80 1, polybenzimidazole 0.2 1. Zinc ricinoleate.

[0040] Described organic porous filler is made up of the raw material of following weight part:

[0041] Diatomaceous earth 15, sodium dodecylbenzene sulfonate 2, aluminum dihydrogen phosphate 4, pyromellitic dianhydride 15, ammonium persulfate 0.6, trichloroisocyanuric acid 2.

[0042] The preparation method of described organic porous filler comprises the following steps:

[0043] (1) Take diatomaceous earth, calcinate at 800°C for 2 hours, cool to room temperature, grind into fine powder, mix with sodium dodecylbenzenesulfonate, add to deionized water that is 3 times the weight of the mixture, and heat at 60 Keep stirring at...

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Abstract

The invention discloses a graphene heat-dissipation coating which is composed of the following raw materials in parts by weight: 15-20 parts of graphene oxide, 120-131 parts of high-density polypropylene, 10-13 parts of an organic porous filler, 1-2 parts of triethanolamine, 3-4 parts of aluminum nitride, 0.5-1 part of beta-hydroxyalkyl amide, 0.1-0.2 part of butylmercaptooxo-stannane, 0.4-1 partof sp-80, 0.1-0.2 part of polybenzimidazole and 0.7-1 part of zinc ricinoleate. The graphene heat-dissipation coating improves the bonding strength of diatomite, aluminum nitride and graphene, also improves the dispersion compatibility of diatomite, aluminum nitride and graphene in the coating, and improves the uniform stability strength of a finished product coating film.

Description

technical field [0001] The invention belongs to the field of coatings, and in particular relates to a graphene heat dissipation coating and a preparation method thereof. Background technique [0002] Powder coating is a new type of solvent-free 100% solid powder coating. It has the characteristics of no solvent, no pollution, recyclable, environmental protection, saving energy and resources, reducing labor intensity and high mechanical strength of the coating film. Powder coating is in a completely different form from general coatings, and it exists in the state of fine powder. Because no solvent is used, it is called powder coating. The main characteristics of powder coatings are: harmless, high efficiency, resource saving and environmental protection; polypropylene powder coating has excellent corrosion resistance, chemical resistance, excellent electrical insulation and ultraviolet radiation resistance. The disadvantage is that the mechanical strength is not high and th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D123/12C09D7/61
Inventor 方万漂张磊
Owner 温州市赢创新材料技术有限公司
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