Graphene heat dissipation coating applied to LED lamps and preparation method of graphene heat dissipation coating

A heat-dissipating coating and LED lamp technology, applied in the direction of polyurea/polyurethane coatings, coatings, etc., can solve the problems of poor temperature resistance and aging resistance, low adhesion of substrates, poor heat dissipation effect, etc., and achieve enhanced weather resistance , extended service life, good heat dissipation effect

Inactive Publication Date: 2016-08-03
NINGBO MORSH TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the heat dissipation problem of LED lamps is mostly solved by thermally conductive adhesives, but the materials used have technical problems such as poor temperature resistance

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Add 15Kg of water-based polyurethane and 10Kg of water-based acrylic resin into 20Kg of pure water respectively, and stir for 15-20 minutes at 1000-1500 rpm.

[0021] Add 10Kg titanium dioxide, 0.1Kg graphene, 4Kg silicon powder and 5Kg bentonite powder at the same stirring speed, and stir for 30 minutes.

[0022] Then raise the temperature to 40-50°C, add 4Kg YH-82 modified amine, 2Kg cobalt naphthenate, 2Kg titanate and 6Kg film-forming aid, continue stirring for 20-30 minutes, and grind to obtain graphene heat dissipation coating.

[0023] Apply the graphene heat-dissipating coating on the LED housing, and perform an accelerated aging test under the conditions of 80°C and 300W ultraviolet light irradiation, the aging resistance time is 6200 hours, the adhesive force is 0-1 grade (3M tape), and the thermal conductivity is 295W / (m·℃), high temperature resistance up to 280℃.

Embodiment 2

[0025] Add 20Kg of modified graphene to 40Kg of pure water, stir at 1000-1500 rpm for 30 minutes; add 20Kg of water-based polyurethane and 10Kg of water-based acrylic resin, and stir at the same speed for 15-20 minutes.

[0026] Then add 15Kg of titanium dioxide, 5Kg of silicon powder and 5Kg of bentonite powder respectively, and stir for 30 minutes.

[0027] Then heat up to 40-50°C, add 5Kg YH-82 modified amine, 3Kg cobalt naphthenate, 3Kg titanate and 7Kg film-forming aid, continue stirring for 20-30 minutes, and grind to obtain graphene heat dissipation coating.

[0028] Apply the graphene heat-dissipating coating on the LED housing, and perform an accelerated aging test under the conditions of 80°C and 300W ultraviolet light irradiation, the aging resistance time is 6300 hours, the adhesive force is 0-1 (3M tape), and the thermal conductivity is 290W / (m °C).

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PUM

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Abstract

The invention provides a graphene heat dissipation coating applied to LED lamps. The graphene heat dissipation coating applied to LED lamps is prepared from, by weight, 20-40 parts of pure water, 5-15 parts of waterborne acrylic resin, 10-25 parts of waterborne polyurethane resin, 3-6 parts of YH-82 modified amine, 2-3 parts of cobalt naphthenate, 3-8 parts of diamond powder, 4-7 parts of bentonite powder, 3-7 parts of silica powder, 2-6 parts of a titanate coupling agent, 5-15 parts of titanium dioxide, 0.001-20 parts of a graphene material and 5-8 parts of a film-forming aid. The invention further provides a preparation method of the graphene heat dissipation coating applied to LED lamps.

Description

technical field [0001] The invention relates to the technical field of heat-dissipating coatings, in particular to a graphene heat-dissipating coating with an anti-aging effect applied to LED lamps and a preparation method thereof. Background technique [0002] With the popularization and use of LED lamps, effectively prolonging the service life of LED lamps has become an urgent problem to be solved. At present, the heat dissipation problem of LED lamps is mostly solved by thermally conductive adhesives, but the materials used have technical problems such as poor temperature resistance and aging resistance, low adhesion to the substrate, poor heat dissipation effect, and inconvenient construction. Realize that the LED lamp has good heat dissipation and anti-aging effect. Contents of the invention [0003] In view of the above problems, the object of the present invention is to provide a graphene heat dissipation coating applied to LED lamps and a preparation method thereo...

Claims

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Application Information

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IPC IPC(8): C09D175/04C09D133/00C09D7/12
CPCC08L2205/035C09D7/61C09D7/62C09D175/04C08L33/00C08K13/02C08K3/04C08K2003/2241C08K3/346C08K3/36C08K13/06
Inventor 范正清唐长林吴伦吴欢周旭峰刘兆平茆玉宝
Owner NINGBO MORSH TECH
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