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Heat dissipation coating of water-based carbon nanotube/epoxy resin dispersion system as well as preparation method and application of heat dissipation coating

A water-based carbon nanotube and water-based epoxy resin technology, applied in epoxy resin coatings, coatings, etc., can solve problems such as poor heat dissipation

Active Publication Date: 2020-08-04
湖南库泠斯特科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The heat dissipation coating of the water-based carbon nanotube / epoxy resin dispersion system provided by the present invention has excellent heat dissipation performance, and can solve the problem of poor heat dissipation of conventional heat conduction coatings

Method used

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  • Heat dissipation coating of water-based carbon nanotube/epoxy resin dispersion system as well as preparation method and application of heat dissipation coating
  • Heat dissipation coating of water-based carbon nanotube/epoxy resin dispersion system as well as preparation method and application of heat dissipation coating
  • Heat dissipation coating of water-based carbon nanotube/epoxy resin dispersion system as well as preparation method and application of heat dissipation coating

Examples

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Effect test

preparation example Construction

[0045] The present invention also provides a preparation method of the heat dissipation coating of the aqueous carbon nanotube / epoxy resin dispersion system according to the above technical scheme, which includes the following steps:

[0046] The water-based epoxy resin, hydrophilic carbon nanotubes, hydrophilic kaolin, water, defoamer, leveling agent and two-component water-based epoxy curing agent are mixed sequentially to obtain the water-based carbon nanotube / epoxy resin Dispersion system heat dissipation coating.

[0047] In the present invention, the mixing method is preferably magnetic stirring. The present invention does not have special restrictions on the rotation speed and time of the magnetic stirring, as long as the raw materials can be mixed uniformly. In the present invention, the mixing sequence can ensure that the hydrophilic carbon nanotubes and the hydrophilic kaolin are in full contact with the epoxy resin, and improve the dispersibility of the hydrophilic carbo...

Embodiment 1

[0060] Weigh 1g of carbon nanotubes in a beaker, then weigh 2g of sodium lauryl sulfate, 0.5g of tetrabutylammonium bromide, 3g of polyvinyl alcohol and 45mL of distilled water for magnetic stirring to obtain hydrophilic carbon nanotubes;

[0061] Weigh 1g of calcined kaolin in a beaker, then weigh 2g of sodium lauryl sulfate, 0.5g of tetrabutylammonium bromide, 3g of polyvinyl alcohol and 45mL of distilled water for magnetic stirring to obtain hydrophilic kaolin;

[0062] Weigh 15g of water-based epoxy resin, 8g of hydrophilic carbon nanotubes, 12g of hydrophilic kaolin and 3g of water in a beaker, stir evenly, weigh 1g of tributyl phosphate, 1g of polyurethane leveling agent, 3g of two groups 1 part of water-based epoxy curing agent, stir for 2h with DW-2 power stepless constant-speed stirrer until the dispersion is evenly distributed to obtain a water-based carbon nanotube / epoxy resin dispersion system heat dissipation coating.

[0063] Degrease the surface of the 12cm×5cm galvani...

Embodiment 2

[0080] The difference between this example and Example 1 lies in the amount of raw materials used.

[0081] Weigh 1g of carbon nanotubes in a beaker, then weigh 2g of sodium lauryl sulfate, 0.5g of tetrabutylammonium bromide, 3g of polyvinyl alcohol and 45mL of distilled water for magnetic stirring to obtain hydrophilic carbon nanotubes;

[0082] Weigh 1g of calcined kaolin in a beaker, then weigh 2g of sodium lauryl sulfate, 0.5g of tetrabutylammonium bromide, 3g of polyvinyl alcohol and 45mL of distilled water for magnetic stirring to obtain hydrophilic kaolin;

[0083] Weigh 15g of water-based epoxy resin, 10g of hydrophilic carbon nanotubes, 12g of hydrophilic kaolin and 3g of water in a beaker, stir evenly, weigh 1g of tributyl phosphate, 1g of polyurethane leveling agent, 3g of two groups 1 part of water-based epoxy curing agent, stir with DW-2 stepless constant speed stirrer for 2h until the dispersion is evenly distributed to obtain a water-based carbon nanotube / epoxy resin d...

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Abstract

The invention provides a heat dissipation coating of a water-based carbon nanotube / epoxy resin dispersion system as well as a preparation method and application of the heat dissipation coating, and relates to the technical field of water-based coatings. The heat dissipation coating comprises the following components in parts by mass: 10-20 parts of water-borne epoxy resin, 5-15 parts of hydrophilic carbon nanotubes, 5-20 parts of hydrophilic kaolin, 0-10 parts of water, 1-5 parts of an antifoaming agent, 1-5 parts of a leveling agent and 3-10 parts of a double-component water-borne epoxy resincuring agent. The hydrophilic carbon nanotubes in the heat dissipation coating provided by the invention are good in dispersity; the heat dissipation coating provided by the invention has excellent heat dissipation performance, can solve the technical problem of poor heat dissipation performance caused by poor dispersity of carbon nanotubes in a conventional heat conduction coating, and is environment-friendly in raw materials, and the prepared heat dissipation coating is low in VOC emission.

Description

Technical field [0001] The present invention relates to the technical field of water-based coatings, in particular to a heat-dissipating coating of water-based carbon nanotube / epoxy resin dispersion system, and a preparation method and application thereof. Background technique [0002] With the development of modern technology, various electronic components are gradually becoming smaller and more efficient. Because electronic components generally have the characteristics of small size, long continuous working time, and closed working environment, as the input power of electronic components continues to increase , Will cause the heat flux density of the electronic components to be very high, and the heat generation is large. If the heat cannot be dissipated in time, the temperature of the electronic product or its partial components will be too high, which will greatly shorten the service life of the capacitor, reduce the working performance, and cause a waste of resources. There...

Claims

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Application Information

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IPC IPC(8): C09D163/00C09D163/02C09D163/04C09D7/62
CPCC09D163/00C09D163/04C09D7/62C08L2205/02C08L2205/035C08K2201/003C08K2201/011C08L63/04C08L29/04C08L75/04C08K13/06C08K9/04C08K3/346C08K3/041C08K5/521
Inventor 谭正德李丰谢情丽吴钧涛赵剩勇
Owner 湖南库泠斯特科技有限公司
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