Epoxy resin and graphene composite heat dissipation coating for 6061 aluminum alloy plate and preparation method

Abstract

The invention relates to the technical field of heat dissipation coatings for electronic components, in particular to an epoxy resin and graphene composite heat dissipation coating for 6061 aluminum alloy plates and a preparation method. The coating is prepared from the following components in parts by weight: 15-25 parts of epoxy resin, 4-6 parts of a reactive diluent, 1-2 parts of a dispersing agent, 3-5 parts of a curing agent, 2-3 parts of a cerium compound, 1-1.5 parts of a nitrogen-boron compound, 2-3 parts of a titanium compound and 0.0008-0.0012 part of graphene oxide powder. Epoxy resin and the curing agent of the heat dissipation coating are cross-linked to form a network-shaped chemical structure with high mechanical strength, the network-shaped chemical structure is used as a matrix, three radiation fillers including the cerium compound, the nitrogen-boron compound and the titanium compound and graphene oxide powder are used as fillers, and the heat dissipation coating is good in cohesiveness, adhesiveness, stability, chemical resistance and insulativity and high in mechanical strength. Most importantly, the heat dissipation coating is of an industrial grade, but the improvement of the heat dissipation performance of the 6061 aluminum alloy plate after the heat dissipation coating is applied to the 6061 aluminum alloy plate is superior to that of an existing nanoscale heat dissipation coating.

Description

technical field [0001] The invention relates to the technical field of heat dissipation coatings for electronic components, in particular to an epoxy resin graphene composite heat dissipation coating for 6061 aluminum alloy plates and a preparation method thereof. Background technique [0002] 6061 aluminum alloy is a high-quality aluminum alloy product produced by heat treatment and pre-stretching process. Although its strength cannot be compared with 2XXX series or 7XXX series, it has many characteristics of magnesium and silicon alloys, excellent processing performance and excellent welding characteristics. And electroplating, good corrosion resistance, high toughness and no deformation after processing, compact material without defects and easy to polish, easy to color film, excellent oxidation effect and other excellent characteristics. Typical uses 1. The application of strips is widely used in decoration, packaging, construction, transportation, electronics, aviation,...

AI Technical Summary

Problems solved by technology

At present, it is almost difficult to improve the heat dissipation performance of 6061 aluminum alloy plates with industrial-grade heat dissipation coatings that can be applied to enhance such 6061 aluminum alloy plates, and only some nano-scale heat dissipation coatings can improve the heat dissipation performance of 6061 aluminum alloy plates to a certain extent. However, the cost is high and the heat dissipation performance of the 6061 aluminum alloy sheet after coating is not particularly obvious. It can only improve the heat dissipation performance of the 6061 aluminum alloy sheet. In some occasions that require higher heat dissipation intensity, it cannot be achieved. heat dissipation requirements, therefore, have to apply other more expensive heat dissipation devices

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