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Heat-conducting graphene silicone grease and preparation method thereof

A technology of thermal conductive silicone grease and graphene, which is applied in the field of materials, can solve problems such as difficulties, and achieve the effects of reducing interface thermal resistance, improving heat conduction, and extending service life

Inactive Publication Date: 2015-11-18
SHENZHEN GUOCHUANG JIAWEI GRAPHENE TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Excellent thermal conductivity and mechanical properties make graphene great potential in the field of thermal management, but these properties are based on the micro-nano scale, and it is still difficult to form a macro-scale application

Method used

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  • Heat-conducting graphene silicone grease and preparation method thereof

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Embodiment Construction

[0040] The present invention will be described in more detail with a series of examples and comparative examples below.

[0041] Graphene thermally conductive silicone grease of the present invention can be prepared by following components and methods:

[0042] A graphene heat-conducting silicone grease is composed of organopolysiloxane (A), heat-conducting filler (B), graphene slurry (C), surface treatment agent (D) and thixotropic agent (E) in a certain weight percentage ratio Prepared by mixing.

[0043] Graphene thermal grease is prepared from the following raw materials:

[0044] Organopolysiloxane (A)5~60wt%

[0045] Thermally conductive filler (B) 10~90wt%

[0046] Graphene slurry (C) 5~80wt%

[0047] Surface treatment agent (D) 0.01~50wt%

[0048] Thixotropic agent (E)0.01~1wt%

[0049] Wherein the graphene slurry (C) is prepared from the following raw materials:

[0050] Organopolysiloxane (A) 1~80wt%

[0051] Graphene powder (F) 1~50wt%

[0052] Surface trea...

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Abstract

The invention relates to heat-conducting graphene silicone grease. The heat-conducting graphene silicone grease is prepared from raw materials in percentage by weight as follows: 5wt%-60wt% of organopolysiloxane, 10wt%-90wt% of heat-conducting filler, 5wt%-80wt% of graphene slurry, 0.01wt%-50wt% of a surface treatment agent and 0.01wt%-1wt% of a thixotropic agent, wherein the graphene slurry is prepared from raw materials in percentage by weight as follows: 1wt%-80wt% of organopolysiloxane, 1wt%-50wt% of graphene powder, 0.01wt%-50wt% of a surface treatment agent and 10wt%-90wt% of a solvent. The heat-conducting graphene silicone grease shows the high heat conductivity and has the excellent liquidity, so that the heat-conducting graphene silicone grease has the good convenient construction performance; meanwhile, the heat-conducting graphene silicone grease can sufficiently fit with pits in surfaces of heaters and radiators, accordingly, the interface heat resistance is reduced, heat transfer of the heaters is improved, and service lives of the heaters are prolonged.

Description

technical field [0001] The invention relates to the field of materials, in particular to a graphene heat-conducting silicone grease and a preparation method thereof. Background technique [0002] With the advent of the 3D era, electronic products meet application requirements such as thinness, lightness, smallness, intelligence, and informatization. The calorific value of components increases rapidly on a large scale. The result is that the temperature or junction temperature of electronic chips rises rapidly. The heat conduction effect directly affects the stability of electronic product performance and the safety of use. How to quickly conduct and spread the excess heat generated by electronic components to the surrounding environment or cooling system is one of the bottlenecks in the development and application of most electronic products. [0003] Thermally conductive silicone grease is a very popular thermal interface material. It has the characteristics of low thermal...

Claims

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Application Information

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IPC IPC(8): C08L83/04C08K13/06C08K9/06C08K3/04C08K3/08C08K3/22C08K3/36
Inventor 钟起权刘克慈立杰姜宗清
Owner SHENZHEN GUOCHUANG JIAWEI GRAPHENE TECH CO LTD
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