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A kind of heat-conducting material composition and its application

A technology of heat-conducting materials and compositions, applied in the field of heat-conducting materials, to achieve the effect of easy repair

Active Publication Date: 2018-02-16
GUANGZHOU HUITIAN FINE CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] However, there are few reports on non-polluting, easy-to-rework, and washable heat-conducting materials.

Method used

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  • A kind of heat-conducting material composition and its application
  • A kind of heat-conducting material composition and its application
  • A kind of heat-conducting material composition and its application

Examples

Experimental program
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Effect test

Embodiment 1

[0100] 4 parts of organopolysiloxane with structure I (viscosity about 100mPa·s), 6 parts of alkoxy-terminated vinylpolysiloxane with structure II (viscosity about 100mPa·s), spherical shape of 20μm 60 parts of aluminum oxide and 40 parts of 5 μm flaky zinc oxide were mixed in a planetary mixer for 30 minutes, then 0.5 parts of a silane coupling agent of structure III was added, and mixed and stirred for 10 minutes to obtain a thermally conductive material composition. The oil separation degree of the composition at 150° C. was tested, and the composition was coated on an aluminum substrate to test the water washing performance.

Embodiment 2

[0102] 4 parts of organopolysiloxane with structure I (viscosity about 400mPa·s), 8 parts of alkoxy-terminated vinyl polysiloxane with structure II (viscosity about 300mPa·s), spherical shape of 20μm 70 parts of aluminum oxide and 40 parts of 5 μm flaky zinc oxide were mixed in a planetary mixer for 30 minutes, then 0.5 parts of silane coupling agent of structure III were added, and mixed and stirred for 10 minutes to obtain a thermally conductive material composition. The oil separation degree of the composition at 150° C. was tested, and the composition was coated on an aluminum substrate to test the water washing performance.

Embodiment 3

[0104] 5 parts of organopolysiloxane with structure I (viscosity about 500mPa·s), 8 parts of alkoxy-terminated vinylpolysiloxane with structure II (viscosity about 400mPa·s), spherical shape of 20μm 70 parts of aluminum oxide and 40 parts of 5 μm flaky zinc oxide were mixed in a planetary mixer for 30 minutes, then 0.5 parts of silane coupling agent of structure III were added, and mixed and stirred for 10 minutes to obtain a thermally conductive material composition. The oil separation degree of the composition at 150° C. was tested, and the composition was coated on an aluminum substrate to test the water washing performance.

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Abstract

The invention provides a thermally conductive material composition, which includes the following components by weight: A) organopolysiloxane, 2-5%; B) alkoxy-terminated vinyl polysiloxane, 5-10% ; C) aluminum oxide, 50 to 80%; D) zinc oxide, 30 to 50%; and E) silane coupling agent, 0.1 to 1%; wherein the weight percentage of each component A) to E) is based on the group based on the total weight of components A) to E), and the sum of the weight percentages of components A) to E) is 100%. The thermally conductive material composition of the present invention has the characteristics of being pollution-free, easy to repair, and washable, and can be widely used in the electrical and electronic fields.

Description

technical field [0001] The invention relates to the technical field of heat-conducting materials, in particular to a non-polluting, easy-to-rework and washable heat-conducting material composition and its application. Background technique [0002] As electronic devices continue to integrate more powerful functions into smaller components, temperature control has become one of the critical challenges in design, that is, how to effectively take away More heat generated by greater unit power. Thermally conductive silicone grease is the most important type of thermally conductive materials. As a commonly used thermally conductive material, the composition of thermally conductive silicone grease is usually a thermally conductive matrix (high boiling point solvent, dimethylpolydimethylsiloxane) and various types of thermally conductive fillers. Through mechanical coupling, it becomes A whole. [0003] Thermally conductive silicone grease has become a very active development dir...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L83/07C08L83/06C08K3/22C09K5/14
CPCC08L83/12C08G77/46C08L83/00C08K5/5419
Inventor 赵荆感张银华
Owner GUANGZHOU HUITIAN FINE CHEM
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