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Graphene powder coating for LED lamp and preparation method thereof

A technology of graphene powder and LED lights, which is applied in the field of coatings, can solve the problems of low mechanical strength of the coating film, uneven quality, poor surface texture, etc., to improve uniformity and mechanical stability, improve compatibility, and good film formation performance effect

Inactive Publication Date: 2019-03-19
陈绪涛
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The heat dissipation coatings currently produced are generally used in the heat dissipation of components of electronic products such as CPUs and the heat dissipation of LED lamps. The quality of the current powder coatings is uneven, and there are defects such as poor heat dissipation, poor surface texture, and low mechanical strength of the coating film. Montmorillonite is soft, slippery, and has good high temperature resistance. It is very suitable as a filler for powder coatings.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A kind of graphene powder coating for led lamp, it is made up of the raw material of following parts by weight:

[0024] High-density polyethylene 140, isopropyl distearoyloxyaluminate 2, modified montmorillonite 18, β-hydroxyalkylamide 1, 1,2-dimethylimidazole 1, graphene oxide 4.

[0025] The modified montmorillonite is composed of the following raw materials in parts by weight:

[0026] Montmorillonite 30, methyl acrylate 15, ammonium persulfate 0.4, diisocyanate 1, dibutyltin dilaurate 0.1, methyl cellulose 1.

[0027] The preparation method of described modified montmorillonite, comprises the following steps:

[0028] (1) Take ammonium persulfate, add it to deionized water 20 times its weight, and stir evenly;

[0029] (2) Take montmorillonite, calcinate at 700°C for 1 hour, grind it into fine powder after cooling, mix it with methyl acrylate, stir evenly, send it into the reaction kettle, feed nitrogen gas, and adjust the temperature of the reaction kettle to 65...

Embodiment 2

[0037] A kind of graphene powder coating for led lamp, it is made up of the raw material of following parts by weight:

[0038] High-density polyethylene 170, isopropyl distearoyloxyaluminate 2, modified montmorillonite 18, β-hydroxyalkylamide 1, 1,2-dimethylimidazole 1, graphene oxide 4.

[0039] The modified montmorillonite is composed of the following raw materials in parts by weight:

[0040] Montmorillonite 40, methyl acrylate 20, ammonium persulfate 0.5, diisocyanate 2, dibutyltin dilaurate 0.2, methyl cellulose 2.

[0041] The preparation method of described modified montmorillonite, comprises the following steps:

[0042] (1) Take ammonium persulfate, add it to deionized water 30 times its weight, and stir evenly;

[0043] (2) Take montmorillonite, calcinate it at 750°C for 2 hours, grind it into fine powder after cooling, mix it with methyl acrylate, stir evenly, send it into the reaction kettle, feed nitrogen gas, and adjust the temperature of the reaction kettle t...

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PUM

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Abstract

The invention discloses a graphene powder coating for an LED lamp. The raphene powder coating contains the following raw materials in parts by weight: 140-170 parts of high density polyethylene, 2-4 parts of isopropyl distearyloxyaluminate, 18-22 parts of modified imvite, 1-2 parts of beta-hydroxyalkyl amide, 1-2 parts of 1,2-dimethylimidazole and 4-6 parts of graphene oxide. A compound filler provided by the invention has very good dispersing performance, the consistency of the compound filler among polyvinyl matrixes can be effectively improved, and the uniformity and mechanical stability ofthe finished coating are improved.

Description

technical field [0001] The invention belongs to the field of coatings, and in particular relates to a graphene powder coating for an LED lamp and a preparation method thereof. Background technique [0002] The heat dissipation coating is to enhance the heat dissipation performance of the object by improving the radiation efficiency of the surface of the object (especially improving the infrared radiation efficiency). It has low cost and is simple to implement. The radiative heat dissipation cooling coating is directly applied to the surface of the object to be radiated and cooled. The radiative heat dissipation cooling coating can radiate heat from the object to the atmospheric space at an infrared wavelength of 8-13.5 μm, reducing the surface and internal temperature of the object, and the heat dissipation and cooling are obvious. The heat dissipation of the paint is not affected by the surrounding medium, and the heat dissipation of the paint can be used in a vacuum envir...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D123/06C09D5/03C09D7/62
CPCC09D5/033C09D123/06C08K9/04C08K3/042C08K9/10C08K3/346
Inventor 陈绪涛
Owner 陈绪涛
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