Functional nanometer heat dissipation coating and preparation method and application thereof

A heat-dissipating coating and nano-functional technology, applied in anti-corrosion coatings, polyester coatings, epoxy resin coatings, etc., can solve the problems of poor heat radiation ability on metal surfaces, difficult metal heat dissipation, and large space occupation, so as to improve heat radiation. Ability, heat dissipation effect is obvious, the effect of prolonging life

Inactive Publication Date: 2019-04-16
SUN YAT SEN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the heat radiation ability of the metal surface is poor. In the absence of convective heat transfer, the heat on the metal is difficult to dissipate by radiation.
However, adding equipment that enhances convective heat transfer will not only increase the cost, but also take up a lot of space, which cannot meet the development needs of today's electronic products towards miniaturization, high power, and high performance.

Method used

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  • Functional nanometer heat dissipation coating and preparation method and application thereof
  • Functional nanometer heat dissipation coating and preparation method and application thereof
  • Functional nanometer heat dissipation coating and preparation method and application thereof

Examples

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preparation example Construction

[0047] In the second aspect, the present invention provides a method for preparing the functional nano heat-dissipating coating as described in the first aspect, comprising the following steps:

[0048] (1) Add nano-carbon material, water, and additives into the stirring tank, stir and mix for 1-3 hours, and obtain material A;

[0049] (2) Add water-soluble resin, water-soluble curing agent, and leveling agent to the material A obtained in step (1), and continue stirring and mixing for 0.5-2 hours to obtain material B;

[0050] (3) Add a defoamer to the material B obtained in step (2), and finally add a thickener in batches, and continue stirring for 2-6 hours to obtain a functional nano heat-dissipating coating.

[0051] In the embodiment of the present invention, the stirring speed in step (1) is 300-1000 rpm.

[0052] In the embodiment of the present invention, the stirring speed in step (2) is 300-1000 rpm.

[0053] In the embodiment of the present invention, the stirrin...

Embodiment 1

[0064] A preparation method of a functional nano heat dissipation coating provided in this embodiment comprises the following steps:

[0065] (1) Add 0.7g carbon black, 0.3g graphite, 50g deionized water, 10g ethanol, and 3g diacetone alcohol into the stirring tank, stir and mix at 500 rpm for 1 hour to obtain a uniform material;

[0066] (2) Add 30g water-soluble acrylic resin, 3g water-soluble amino resin curing agent, 1.7g polyacrylic acid leveling agent, and continue stirring and mixing for 1 hour at 500 rpm;

[0067] (3) Then add 0.3g of silicone oil, first add 0.5g of sodium carboxymethyl cellulose, and then add 0.5g of sodium carboxymethyl cellulose after it is completely dissolved, and continue stirring at 700 rpm for 4 hours to obtain a functional nano heat dissipation coating 1.

[0068] Apply this paint evenly on the surface of the radiator by dipping (such as figure 1 A certain brand of LED lighting radiator), baked at 120°C for 30 minutes, and tested the perform...

Embodiment 2

[0073] A preparation method of a functional nano heat dissipation coating provided in this embodiment comprises the following steps:

[0074] (1) Add 0.8g carbon black, 0.2g graphite, 50g deionized water, 10g isopropanol, and 2g diacetone alcohol into the stirring tank, stir and mix at 300 rpm for 2 hours to obtain a uniform material;

[0075] (2) Add 30g of water-soluble acrylic resin, 3g of water-soluble amino resin curing agent, and 1g of polyacrylic acid leveling agent, and continue stirring and mixing for 1 hour at 500 rpm;

[0076] (3) Add 0.3 g of silicone oil, first add 0.5 g of polyacrylamide, and then add 0.5 g of polyacrylamide after it is completely dissolved, and continue stirring at 700 rpm for 4 hours to obtain functional nano heat dissipation coating 2.

[0077] In order to better illustrate the implementation effect of the present invention, the functional nano heat dissipation coating 2 obtained in step (3) is evenly coated on the surface of the heat sink, an...

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Abstract

The invention discloses a functional nanometer heat dissipation coating and a preparation method and application thereof. The functional nanometer heat dissipation coating is prepared from, by weight,20-60 parts of water soluble resin, 1-12 parts of a water soluble curing agent, 0.1-2 parts of a thickening agent, 40-70 parts of water, 0.1-0.5 part of a defoaming agent, 0.5-5 parts of a flatteningagent, 0.5-30 parts of auxiliaries and 0.5-5 parts of nanometer carbon materials. The heat dissipation coating contains various nanometer raw materials, when the coating is used for coating the surface of a heat dissipation device, the heat dissipation efficiency of the heat dissipation device can be greatly improved, the temperature of an electronic device is lowered, and therefore the service life of the electronic device is prolonged; meanwhile, the coating further has the functions of resisting corrosion, water, acid, soil, insulation and the like, no antiseptic and other treatment needsto be performed on the heat dissipation device, and the coating has the advantages of being environmentally friendly, safe, green and the like; the nanometer heat dissipation coating has the wide application prospect and the practical value in the field of electronic heat dissipation, and meanwhile the coating is simple in preparation technology, low in cost and suitable for large-scale production.

Description

technical field [0001] The invention relates to the technical field of functional materials and electronic devices, in particular to a functional nano heat dissipation coating and its preparation method and application. Background technique [0002] Metal materials are often used as heat transfer media because of their high thermal conductivity and fast heat transfer rate, and are used as heat dissipation structural materials in many electronic and electrical products. However, the heat radiation ability of the metal surface is poor. Without convective heat transfer, the heat on the metal is difficult to dissipate through radiation. However, adding equipment that enhances convective heat transfer will not only increase the cost, but also take up a lot of space, which cannot meet the development needs of today's electronic products towards miniaturization, high power, and high performance. Therefore, improving the heat radiation ability of the metal surface through coating t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D133/04C09D163/00C09D167/00C09D5/25C09D5/08C09D7/20C09D7/61
CPCC08K2201/011C08K2201/014C08L2205/035C09D5/00C09D5/08C09D7/20C09D7/61C09D7/70C09D133/04C09D143/04C09D163/00C09D167/00C08L61/20C08K3/04C08K7/24C08K3/042
Inventor 吴丁财黄智科卢焰
Owner SUN YAT SEN UNIV
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