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Nano interlayer graphene heat dissipation coating and preparation method and application thereof

A technology of layered graphene and heat-dissipating coatings, applied in the field of nano-interlayer graphene heat-dissipating coatings, can solve problems such as poor anti-corrosion performance, slow heat dissipation rate, and lower heating core temperature

Inactive Publication Date: 2020-10-27
武汉联维新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The present invention aims to overcome some performance deficiencies such as low longitudinal thermal conductivity, slow heat dissipation rate, poor anti-corrosion performance, and solvent resistance of the existing heat-dissipating coatings, and provides a method using zero-dimensional spherical nano-fillers and one-dimensional linear nano-fillers. Fillers and graphene materials form an interlayer structure to increase the longitudinal heat dissipation rate and achieve the main purpose of reducing the heating core temperature faster

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  • Nano interlayer graphene heat dissipation coating and preparation method and application thereof
  • Nano interlayer graphene heat dissipation coating and preparation method and application thereof
  • Nano interlayer graphene heat dissipation coating and preparation method and application thereof

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Embodiment 1

[0053] A kind of preparation method of nano interlayer graphene heat dissipation coating of the present embodiment, described method specifically comprises the following steps:

[0054] (1) 2g graphene is added in 12mL mixed solvent, ultrasonic dispersion 20min, obtain mixed dispersion liquid 1; Then add 0.1g one-dimensional Al to described mixed dispersion liquid 1 2 o 3 Continue to stir the nanowires under ultrasonic conditions until they are uniformly dispersed to obtain a mixed dispersion 2; wherein: the mixed solvent is composed of deionized water and absolute ethanol with a volume ratio of 5:1;

[0055] (2) The mixed dispersion liquid 2 obtained in step (1) is vacuum filtered and freeze-dried to obtain a graphene material-one-dimensional nanowire composite;

[0056] (3) Weigh 2g of the graphene material-one-dimensional nanowire composite obtained in step (2) and add it to 12mL mixed solvent, and ultrasonically disperse it for 20min to obtain mixed dispersion 3; then add...

Embodiment 2

[0063] A kind of preparation method of nano interlayer graphene heat dissipation coating of the present embodiment, described method specifically comprises the following steps:

[0064] (1) Add 2 g of graphene to 10 mL of mixed solvent, ultrasonically disperse for 30 min to obtain mixed dispersion 1; then add 0.2 g of one-dimensional SiC nanowires to the mixed dispersion 1, and continue to stir under ultrasonic conditions until dispersed Uniformly, mixed dispersion 2 is obtained; wherein: the mixed solvent is composed of deionized water and absolute ethanol with a volume ratio of 3:1;

[0065] (2) Filtrating the mixed dispersion 2 obtained in step (1), and then baking at 100° C. for 30 minutes to obtain a graphene material-one-dimensional nanowire composite;

[0066] (3) Weigh 2g of the graphene material-one-dimensional nanowire composite obtained in step (2) and add it to 10mL mixed solvent, and ultrasonically disperse it for 30min to obtain mixed dispersion 3; then add 0.2 ...

Embodiment 3

[0073] A kind of preparation method of nano interlayer graphene heat dissipation coating of the present embodiment, described method specifically comprises the following steps:

[0074] (1) Add 2g graphene to 20mL mixed solvent, ultrasonically disperse for 10min to obtain mixed dispersion 1; then add 0.3g one-dimensional Al to the mixed dispersion 1 2 o 3 Continue to stir the nanowires under ultrasonic conditions until they are uniformly dispersed to obtain a mixed dispersion 2; wherein: the mixed solvent is composed of deionized water and absolute ethanol with a volume ratio of 2:1;

[0075] (2) The mixed dispersion liquid 2 obtained in step (1) is vacuum filtered and freeze-dried to obtain a graphene material-one-dimensional nanowire composite;

[0076] (3) Weigh 2g of the graphene material-one-dimensional nanowire composite obtained in step (2) and add it to 20mL mixed solvent, and ultrasonically disperse it for 10min to obtain mixed dispersion 3; then add 0.3 gZero-dimen...

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Abstract

The invention discloses a nano interlayer graphene heat dissipation coating and a preparation method and application thereof, and relates to the field of heat dissipation materials. According to the invention, the zero-dimensional spherical nano-filler and the one-dimensional linear nano-filler are arranged between the layers of the graphene material in an intercalation manner so that the defectsthat the graphene is easy to agglomerate and is difficult to disperse uniformly in polymer resin are greatly improved. Moreover, the prepared nano interlayer graphene composite material (graphene material-one-dimensional nanowire-zero-dimensional nanosphere compound) has the advantages that the longitudinal heat conductivity of graphene is greatly improved; meanwhile, no matter how the graphene material-one-dimensional nanowire-zero-dimensional nanosphere compound is distributed in the resin matrix, a three-dimensional heat conduction channel can be effectively established; therefore, the temperature of the heat source can be transmitted to the superficial surface and the surface of the coating more quickly, heat can be dissipated more quickly in an infrared radiation mode, and the main purpose of reducing the temperature of the heating core more quickly is achieved.

Description

technical field [0001] The invention relates to the field of heat dissipation materials, more specifically, the invention relates to a nano interlayer graphene heat dissipation coating, its preparation method and its application. Background technique [0002] With the continuous deepening of the modernization of human society, the performance of a series of modern products such as various modern electronic instruments, production equipment, communication equipment, and portable equipment has become more and more powerful, which has greatly promoted the development of society and brought people Great convenience. However, as the performance of various equipment continues to increase, its calorific value also continues to increase. So far, the calorific value of various equipment has become a problem that cannot be ignored in practical applications, and it also limits the practical application of some equipment and production methods. one of the main factors. [0003] At pre...

Claims

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Application Information

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IPC IPC(8): C09D133/04C09D5/08C09D7/61C09D175/04C09D163/00C09K5/14H05K7/20
CPCC08K2201/011C09D5/08C09D133/04C09D163/00C09D175/04C09K5/14C09D7/61C09D7/70H05K7/2039C08K13/04C08K3/042C08K7/08C08K7/18C08K7/10Y02P20/54
Inventor 常海欣李刚辉郭辉
Owner 武汉联维新材料科技有限公司
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