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Led heat dissipation paint and preparation method thereof

A technology of heat-dissipating coatings and raw materials, applied in the field of coatings, can solve the problems of low mechanical strength of coating films, uneven quality, poor heat dissipation, etc., and achieve the effects of improving dispersion compatibility, improving surface activity, improving mechanical strength and heat dissipation performance

Inactive Publication Date: 2019-04-16
方少章
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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

[0019] A heat-dissipating paint for LED is composed of the following raw materials in parts by weight: high-density polypropylene 125, acrylamide 35, ammonium persulfate 1.5, γ-aminopropyltriethoxysilane 3.5, barium stearate 7, Carbon nanotube 25, waste rubber powder 18, methyl methacrylate 8, glycidol 6, lithium methoxide 0.015, triethylamine 0.15.

[0020] The preparation method of described led heat-dissipating paint, comprises the following steps:

[0021] (1) Take carbon nanotubes, add them to 97% sulfuric acid solution that is 35 times its weight, soak for 3 hours, filter, wash the precipitate with water, dry at room temperature, mix with barium stearate, keep stirring at 65°C for 1.5 hour, added to deionized water with 12 times the weight of the mixture, and ultrasonicated for 4 minutes to obtain a carbon nanotube dispersion;

[0022] (2) Take ammonium persulfate, add it to deionized water 25 times its weight, and stir evenly;

[0023] (3) Mix acrylamide and γ-aminopr...

Embodiment 2

[0028] A heat-dissipating coating for LED, which is composed of the following raw materials in parts by weight: high-density polypropylene 150, acrylamide 40, ammonium persulfate 2, γ-aminopropyltriethoxysilane 4, barium stearate 8, Carbon nanotube 30, waste rubber powder 20, methyl methacrylate 10, glycidol 8, lithium methoxide 0.02, triethylamine 0.2.

[0029] The preparation method of described led heat-dissipating paint, comprises the following steps:

[0030] (1) Take carbon nanotubes, add them to 40 times their weight in 96-98% sulfuric acid solution, soak for 4 hours, filter, wash the precipitate with water, dry at room temperature, mix with barium stearate, and keep warm at 70°C Stir for 2 hours, add to deionized water 15 times the weight of the mixture, and ultrasonicate for 5 minutes to obtain a carbon nanotube dispersion;

[0031] (2) Take ammonium persulfate, add it to deionized water 30 times its weight, and stir evenly;

[0032] (3) Mix acrylamide and γ-aminopr...

Embodiment 3

[0037] A heat-dissipating paint for LED is composed of the following raw materials in parts by weight: high-density polypropylene 110, acrylamide 30, ammonium persulfate 1, γ-aminopropyltriethoxysilane 3, barium stearate 5, Carbon nanotube 20, waste rubber powder 17, methyl methacrylate 6, glycidyl alcohol 5, lithium methoxide 0.01, triethylamine 0.1.

[0038] The preparation method of described led heat-dissipating paint, comprises the following steps:

[0039] (1) Take carbon nanotubes, add them to 96% sulfuric acid solution that is 30 times its weight, soak for 2 hours, filter, wash the precipitate with water, dry at room temperature, mix with barium stearate, and keep stirring at 60°C for 1 Hours, added to deionized water 10 times the weight of the mixture, ultrasonic 3 minutes, to obtain a carbon nanotube dispersion;

[0040] (2) Take ammonium persulfate, add it to deionized water 20 times its weight, and stir evenly;

[0041] (3) Mix acrylamide and γ-aminopropyltrietho...

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PUM

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Abstract

The invention discloses a led heat dissipation paint and a preparation method thereof. The led heat dissipation paint is prepared from, by weight, 110-150 parts of high-density polypropylene, 30-40 parts of acrylamide, 1-2 parts of ammonium persulfate, 3-4 parts of gamma- aminopropyltriethoxysilane, 5-8 parts of barium stearate, 20-30 parts of carbon nanotubes, 17-20 parts of waste rubber powder,6-10 parts of methyl methacrylate, 5-8 parts of glycidol, 0.01-0.02 part of lithium methoxide and 0.1-0.2 part of triethylamine. According to the led heat dissipation paint and the preparation methodthereof, carbon nanotube dispersion liquid serves as a reaction solvent, epoxy crosslinking is promoted under the catalysis effect of triethylamine, therefore, dispersion compatibility between the carbon nanotubes and the waste rubber powder is improved, the surface activity is further improved, and thus the mechanical strength and heat dissipation performance of the finished paint are improved.

Description

technical field [0001] The invention belongs to the field of coatings, and in particular relates to an LED heat dissipation coating and a preparation method thereof. Background technique [0002] Heat dissipation coating is to enhance the heat dissipation performance of the object by improving the radiation efficiency of the surface of the object. 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 environment. While the coating plays a role in radiation cooling, it can al...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D123/12C09D115/00C09D133/26C09D7/62C09D7/63C08C19/06C08F220/56C08F230/08
CPCC08C19/06C08F220/56C08K2201/011C08L2205/03C09D123/12C09D7/62C09D7/63C08L15/00C08L43/04C08K13/06C08K9/04C08K3/041C08K5/098C08F230/08
Inventor 不公告发明人
Owner 方少章
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