Electric-insulation coating and preparation method thereof

A radiation heat dissipation and electrical insulation technology, which is applied in the field of composite coatings, can solve the problems of inability to fully exert the radiation heat dissipation performance of coatings, increase thermal resistance, and potential safety hazards, and achieve the effects of improving processing performance, reducing temperature efficiently, and stabilizing coating quality
CN111138947AActive Publication Date: 2020-05-12GUANGZHOU SHIYUAN ELECTRONICS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
GUANGZHOU SHIYUAN ELECTRONICS CO LTD
Publication Date
2020-05-12

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Abstract

The invention relates to the technical field of composite coatings, and provides an electric-insulation thermal-radiation coating and a preparation method thereof. The electric-insulation thermal-radiation coating comprises the following raw materials in parts by weight: 50 to 150 parts of a coating matrix, 50 to 150 parts of a composite heat dissipation filler, 0.2 to 10 parts of a surface activeagent, 0.1 to 15 parts of a coupling agent, 15-100 parts of a solvent and 0.5 to 5 parts of a defoaming agent, wherein the composite heat dissipation filler is formed by mixing at least two selectedfrom the group consisting of a spherical filler, a fibrous filler and a flaky filler, each filler comprises a core material and an outer coating layer, the outer surface of the core material is coatedwith the outer coating layer, the core material is a heat-conducting and electric-conducting material, and the outer coating layer is made of a heat-conducting and insulating material. The electric-insulation thermal-radiation coating is high in emissivity, good in electrical insulation, high in thermal conductivity and heat dissipation performance and stable in physical and chemical properties;the preparation method is simple; and the adding sequence and the reaction process of all the components in a formula for the coating are optimized.
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Description

technical field

[0001] The invention belongs to the technical field of composite coatings, in particular to an electrical insulation radiation heat dissipation coating and a preparation method thereof. Background technique

[0002] With the rapid development of electronic integration technology, electronic equipment is developing in the direction of miniaturization and thinning, and the integration degree of the system is getting higher and higher. On the other hand, with the application of high-power components in electronic equipment, the thermal power consumption increases sharply, and the resulting heat does not have enough space to dissipate, which directly affects the working performance and service life of the product. Statistics show that more than 40% of the The reliability (life) failure of electronic products is caused by the problem of temperature rise. With the advent of the 5G era, the heat dissipation task of electronic products has become particularly severe...

Claims

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