Epoxy resin and graphene composite heat dissipation coating for aluminum alloy form relieved tooth radiator and preparation method

Abstract

The invention relates to the technical field of radiator coatings, in particular to an epoxy resin and graphene composite heat dissipation coating for an aluminum alloy form relieved tooth radiator and a preparation method of the epoxy resin and graphene composite heat dissipation coating. The composite coating is prepared from 15-25 parts of epoxy resin, 4-6 parts of reactive diluent, 1.2-1.8 parts of dispersing agent, 0.4-0.6 part of leveling agent, 3-5 parts of curing agent, 0.4-0.6 part of magnesium compound, 1-1.5 parts of cerium compound, 1-1.5 parts of carbon nano tube, 0.4-0.6 part ofnitrogen boron compound, 1-1.5 parts of carbon fiber, 1-1.5 parts of copper compound, 0.4-0.6 part of titanium compound and 0.0008-0.0012 part of graphene. The heat dissipation coating has excellent cohesiveness, adhesiveness, stability, chemical resistance, insulativity and high mechanical strength, and most importantly, the heat dissipation coating is industrial, but the improvement of the heatdissipation performance of a radiator after the heat dissipation coating is applied to the radiator is superior to the improvement of the heat dissipation performance of an existing nanoscale heat dissipation coating.

Description

technical field [0001] The invention relates to the technical field of radiator coatings, in particular to an epoxy-graphene composite heat-dissipating coating for aluminum alloy shovel-tooth radiators and a preparation method thereof. Background technique [0002] The aluminum material is superior to itself, soft and easy to process, and has been used in the radiator market for a long time. The aluminum extrusion technology simply means that after the aluminum ingot is heated at high temperature, the aluminum liquid flows through the extrusion die with grooves under high pressure to make The heat sink embryo, and then the heat sink embryo is cut, cut and grooved, and then the heat sink that we often see is made. The cost of extruded aluminum heat sink is low, and the technical threshold requirements are not high, but it is better than the limitation of its own material. The ratio of the thickness to the length of the heat dissipation fin cannot exceed 1:18, so the aluminum ...

AI Technical Summary

Problems solved by technology

The cost of extruded aluminum heat sink is low, and the technical threshold requirements are not high, but it is better than the limitation of its own material. The ratio of the thickness to the length of the heat dissipation fin cannot exceed 1:18, so the aluminum alloy shovel-tooth heat sink can be used in a limited space. It is difficult to increase the heat dissipation area, so the heat dissipation effect of the aluminum extruded heat sink is difficult to meet the heat dissipation requirements of electronic components (such as high-frequency CPUs) with increasing power consumption.

[0003] In view of the above-mentioned defects of the aluminum alloy shovel-tooth radiator, those skilled in the art try to apply heat-dissipating paint to the surface of the aluminum alloy shovel-tooth radiator to achieve the purpose of enhancing the heat dissipation performance of the aluminum alloy shovel-tooth radiator. However, The existing industrial-grade heat dissipation coatings have very low effect on improving the heat dissipation performance of aluminum alloy shovel-tooth radiators, and the effect is poor, while the heat-dissipation coatings that can provide certain help to the heat dissipation performance of aluminum alloy shovel-tooth radiators are all nano-scale heat dissipation coatings , but this type of heat dissipation coating is not only expensive to use, but also does not improve the heat dissipation performance of the aluminum alloy shovel tooth radiator. Rising demand for heat dissipation of electronic components (such as high-frequency CPU)

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