Preparation method of insulating paint with heat transfer function

A functional insulation and pretreatment technology, applied in coatings and other directions, can solve problems such as the inability to meet the thermal conductivity requirements of electrical insulation occasions, and achieve the simple and practical effects of controllable paint film thickness, high fluidity, and poor thermal conductivity.

Active Publication Date: 2022-02-11
珠海格力新材料有限公司 +1
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Problems solved by technology

[0005] Aiming at the problem that the above-mentioned traditional heat-conducting materials cannot meet the heat-conducting requirements of electrical insulation occasions due to their own performance limitations, a simple, economical and practical preparation method for insulating varnish with heat-transfer function is provided.

Method used

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  • Preparation method of insulating paint with heat transfer function

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Embodiment Construction

[0031] In order to clearly and completely understand the technical solution, the present invention will be further described in conjunction with the embodiments and accompanying drawings. Obviously, the recorded embodiments are only part of the embodiments of the present invention. All other obtained embodiments belong to the protection scope of the present invention.

[0032] like figure 1 Shown, a kind of preparation method with heat transfer function insulating varnish comprises the following steps:

[0033] Preparation of base material for S1: take equal amounts of N,N-dimethylacetamide and 4,4-diaminodiphenyl ether with a purity of 99% or more, stir until completely dissolved, and then add pyromellitic tetramethylene tetramethanone with a purity of 99% Formic dianhydride, stir until a viscous, light yellow homogeneous solution is obtained;

[0034] S2 filler pretreatment: first add absolute ethanol to the reaction kettle, and then add a certain amount of aluminum nitrid...

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Abstract

A preparation method of insulating paint with a heat transfer function comprises the following steps: base material preparation, filler pretreatment, mixed liquid preparation, copper foil pretreatment, smearing and imidization. According to the invention, the defect of poor heat conduction capability of heat conduction paint is overcome, the insulating paint is simple and practical, the insulating paint has high heat conduction performance and voltage breakdown resistance by adopting a compound heat conduction powder accumulation mode, and a voltage breakdown test is carried out on a cured paint film to verify that the insulating paint has excellent heat conduction performance and surface breakdown resistance; a compounded heat-conducting filler has relatively high flowability and is easy to disperse, the thickness of a paint film is controllable, a composite medium does not have macroscopic bubbles, the preparation process is simple and controllable, and the rejection rate is low; and the obtained high polymer material is low in price, easy to process and low in cost, and can be subjected to industrial production.

Description

technical field [0001] The invention relates to the field of preparation of insulating varnish with thermal conductivity, in particular to a preparation method of insulating varnish with heat transfer function. Background technique [0002] With the development demand of high frequency and high energy consumption, thermal conductive materials are widely used in various fields. Generally, thermal conductive materials are mostly metals such as Au, Ag, Cu, Al, Mg, and hydroxides or oxides, as well as AlN, BN, SiC graphene, graphite, etc. The rapid development of industrial production and science and technology has put forward newer and higher requirements for thermal conductive materials. In addition to thermal conductivity, it is hoped that the material has excellent comprehensive properties such as light weight, easy processing and molding, good mechanical properties, and chemical corrosion resistance. For example, heat exchanger materials used in chemical production and was...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D179/08C09D7/62C09D5/25
CPCC09D179/08C09D7/62C09D7/70C08K2003/282C08K9/06C08K3/28C08K7/18
Inventor 蒋沅峰赖国明刘冬丽王琳刘磊丁龙龙
Owner 珠海格力新材料有限公司
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