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Environment-friendly cooling coating and preparation method thereof

A heat-dissipating coating and environment-friendly technology, applied in anti-corrosion coatings, fire-retardant coatings, coatings, etc., can solve the problems of fan noise, low cooling efficiency, immature technology, etc., to improve aging resistance, simple and convenient construction, and heat dissipation. good effect

Inactive Publication Date: 2017-12-01
合肥泓定科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, at present, the air-cooling method is usually adopted in the heat dissipation of electronic products, especially the CPU. This method belongs to heat convection, and the cooling efficiency is low, and the fan also produces noise, and also has the defect of being easily damaged; This method belongs to heat conduction, but it also has disadvantages such as low cooling efficiency, immature technology and high price; there is also the use of heat-conducting silica gel for heat dissipation, but the effect is not ideal

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] An environmentally friendly heat-dissipating coating, calculated by weight percentage, is made of the following raw materials:

[0022] 12% acrylic resin, 15% water-soluble nano-scale silica sol, 9% boron nitride, 5% mixture of magnesium oxide and aluminum oxide, 12% sodium bentonite, 8% polyvinyl alcohol, dispersant (polyphosphate) 0.5 %, leveling agent (polyether modified polydimethylsiloxane) 0.5% and adhesion promoter (epoxy silane) 0.5%, the rest is an aqueous solution of ethanol (V ethanol: V water = 92::8 ).

[0023] Preparation:

[0024] The acrylic resin is dissolved in an aqueous solution of ethanol, and then water-soluble nano-scale silica sol, boron nitride, a mixture of magnesium oxide and aluminum oxide, a dispersant, a leveling agent, and an adhesion promoter are added, and inorganic bentonite is added after fully mixing. Stir well and serve.

[0025] The environment-friendly heat-dissipating coating of this example was irradiated with ultraviolet ligh...

Embodiment 2

[0027] An environmentally friendly heat-dissipating coating, calculated by weight percentage, is made of the following raw materials:

[0028] Acrylic resin 10%, water-soluble nano-scale silica sol 18%, boron nitride 12%, mixture of magnesium oxide and aluminum oxide 6%, sodium bentonite 16%, polyvinyl alcohol 5%, dispersant (polyphosphate) 1 %, leveling agent (polyether modified polydimethylsiloxane) 1% and adhesion promoter (epoxy silane) 1%, the rest is an aqueous solution of ethanol (V ethanol: V water = 98: 2) .

[0029] Preparation:

[0030] The acrylic resin is dissolved in an aqueous solution of ethanol, and then water-soluble nano-scale silica sol, boron nitride, a mixture of magnesium oxide and aluminum oxide, a dispersant, a leveling agent, and an adhesion promoter are added, and after thorough mixing, inorganic bentonite is added. Stir well and serve.

[0031] The environment-friendly heat-dissipating coating of this example was irradiated with ultraviolet light...

Embodiment 3

[0033] An environmentally friendly heat-dissipating coating, calculated by weight percentage, is made of the following raw materials:

[0034] Acrylic resin 15%, water-soluble nano-scale silica sol 10%, boron nitride 6%, a mixture of magnesium oxide and aluminum oxide 3%, calcium-based bentonite 6%, polyvinyl alcohol 10%, dispersant (polyphosphate) 0.2 %, leveling agent (polyether modified polydimethylsiloxane) 0.2% and adhesion promoter (epoxy silane) 0.2%, the rest is an aqueous solution of ethanol (V ethanol: V water = 95:5) .

[0035] Preparation:

[0036] The acrylic resin is dissolved in an aqueous solution of ethanol, and then water-soluble nano-scale silica sol, boron nitride, a mixture of magnesium oxide and aluminum oxide, a dispersant, a leveling agent, and an adhesion promoter are added, and after thorough mixing, inorganic bentonite is added. Stir well and serve.

[0037] The environment-friendly heat-dissipating coating of this example was irradiated with ultr...

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Abstract

The invention provides an environment-friendly cooling coating and a preparation method thereof. The environment-friendly cooling coating is prepared from raw materials in percentage by weight as follows: 10%-15% of acrylic resin, 10%-20% of water-soluble nano silica sol, 6%-12% of boron nitride, 3%-6% of a mixture of magnesium oxide and aluminum oxide, 6%-18% of inorganic bentonite, 5%-10% of polyvinyl alcohol, 0-1% of a dispersant, 0-1% of a leveling agent, 0-1% of an adhesion promoter and the balance of a solvent. The preparation method comprises the steps as follows: acrylic resin is dissolved in the solvent, the rest raw materials are added, the mixture is uniformly stirred, and the environment-friendly cooling coating is obtained. The environment-friendly cooling coating has a high cooling speed, can be cured at the normal temperature and can be directly applied to a heating element to reduce the surface temperature of the heating element.

Description

technical field [0001] The invention belongs to the technical field of coatings, and in particular relates to an environment-friendly heat-dissipating coating and a preparation method thereof. Background technique [0002] The heat dissipation problem of electronic equipment is related to the reliability and life of electronic equipment. It is a bottleneck affecting the development of today's electronics industry. With the three major development trends of high performance, miniaturization and integration in the electronics industry, the heat dissipation problem is becoming more and more prominent. . In addition, heat dissipation is also one of the main factors that limit the power increase of light-emitting diodes (LEDs), especially in some special and harsh environments, such as the heat dissipation problem of high-power LED lamps used in underwater closed environments is particularly prominent. Research on high-power LED lamps Finding a better way to dissipate heat is an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D133/00C09D129/04C09D5/08C09D7/12C09D1/00
CPCC09D133/00C08K2003/222C08K2003/2227C08K2003/385C08K2201/011C08L2201/08C08L2203/20C08L2205/035C09D1/00C09D5/08C09D5/18C08L29/04C08L83/12C08K13/02C08K3/36C08K3/38C08K3/22C08K3/346
Inventor 汪琦汪泽维
Owner 合肥泓定科技有限公司
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