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Aqueous acrylate heat-conduction coating material and preparation method thereof

A technology for water-based acrylic and thermally conductive coatings, applied in the field of coating chemistry, to prevent performance degradation, broad industrial application prospects, and high thermal conductivity.

Inactive Publication Date: 2017-01-18
上海颐行高分子材料有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, water-based coatings also have certain shortcomings, and it is necessary to improve the adhesion on the metal surface and the dispersibility of fillers.

Method used

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  • Aqueous acrylate heat-conduction coating material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Mix 60 parts of water-based acrylate emulsion, 30 parts of thermally conductive filler alumina, and 10 parts of water and add them to a high-speed disperser for stirring. The thermally conductive filler is spherical alumina with a particle size of 9-11 μm and a class with a particle size of 1.8-2.0 μm Spherical alumina is mixed according to the mass ratio of 3:1, and the control speed is 1500rpm. After stirring for 1 hour, add 0.05 parts of defoamer emulsified silicone oil, 2.5 parts of film-forming agent dodecyl alcohol ester and 5 parts of adhesion promoter τ- Mercaptopropyltrimethoxysilane, control the speed at 1500rpm, continue to stir for 1h, after mixing evenly, it will be a thermally conductive coating.

Embodiment 2

[0029] The difference from Example 1 is that the adhesion promoter is changed to aminopropyltrimethyloxysilane, and the addition amount is 5 parts.

Embodiment 3

[0031] The difference from Example 1 is that no adhesion promoter is added.

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Abstract

The invention provides an aqueous acrylate heat-conduction coating material, which adopts an acrylate copolymer emulsion as a base material, adopts alumina, zinc oxide, aluminum nitride, boron nitride, carbon nano-tubes, graphene and other inorganic particles having high thermal conductivity as a heat-conduction filler, and comprises water, an adhesion accelerator and other auxiliary agents. According to the present invention, the aqueous acrylate heat-conduction coating material has advantages of safety, environmental protection, good adhesion and high thermal conductivity, can be coated on the surface of electronic components, light apparatuses and other structures, further has advantages of improvement of heat dissipating efficiency, and prevention of performance reduction, instability, service life shortening and other problems caused by insufficient heat dissipating, and has the wide application prospect.

Description

technical field [0001] The invention belongs to the field of paint chemistry, and in particular relates to a water-based acrylic heat-conducting paint and a preparation method thereof. Background technique [0002] Electronic components will generate a lot of heat when they work. In order not to affect their stability and life and to speed up heat dissipation, metal heat sinks with high thermal conductivity are usually installed. However, the thermal radiation coefficient of the metal surface is very low. Under the condition of heat transfer, the heat on the metal surface is difficult to dissipate. Improving the heat radiation efficiency of metal surfaces through coating technology is an important way to improve the heat dissipation performance of metal materials. Today, with the rapid development of the electronics industry, thermally conductive coatings are widely concerned. [0003] At present, most of the paints used in the market are solvent-based paints, which contai...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D133/04C09D7/12
CPCC08K2201/011C09D133/04C08L83/04C08K7/18C08K5/548C08K5/544C08K9/06C08K7/24C08K3/04
Inventor 李卫东赵志国张逸瑾白永平李夏倩殷晓芬
Owner 上海颐行高分子材料有限公司
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