Blended graphene and silicon dioxide dispersing and heat-dispersion paint and preparation method therefor

Abstract

The present invention disclose blended graphene and silicon dioxide dispersiing and heat-dispersion paint. The blended graphene and silicon dioxide dispersiing and heat-dispersion paint consists of the following raw materials in parts by weight: 2-4 parts of calcium aluminate, 1-2 parts of magnesium stearate, 12-15 parts of styrene-maleic anhydride copolymer, 6-10 parts of propargyl alcohol, 90-100 parts of tetrahydrofuran, 4-7 parts of graphene, 16-20 parts of nano silica, 0.3-0.4 part of a silane coupling agent KH560, 700-800 parts of dimethylformamide, 4-5 parts of sodium nitride, 0.04-0.05 part of aluminium trichloride, 1.6-2 parts of a 2-3% sodium ascorbate solution, 1.8-2 parts of a 2-3% copper sulfate solution, 120-130 parts of high density polyethylene, 2-3 parts of propylene glycol alginate, 0.8-1 part of polyacrylamide, 0.5-1 part of sodium bicarbonate, 6-10 part of polyvinylidene chloride, and 2-3 parts of microcrystalline wax. According to the blended graphene and silicon dioxide dispersiing and heat-dispersion paint, a thermal conductivity network formed by a graphene two-dimensional planar structure and a nano silica dioxide three-dimensional network structure is dsitributed in resin, so that the heat radiating effect is achieved.

Description

technical field [0001] The invention relates to the technical field of heat-dissipating coatings, in particular to a graphene-silica blended and dispersed heat-dissipating coating and a preparation method thereof. Background technique [0002] With the rapid development of modern science and technology, the high frequency and high speed of electronic devices and the density and miniaturization of integrated circuits have greatly increased the total power density and calorific value of electronic devices per unit volume, thus making the cooling of electronic devices more difficult. increasingly prominent. However, the cooling capacity achieved by conventional cooling systems is greatly challenged, especially in the fields of energy, automobiles, air conditioning, agriculture, chemicals, heating, aerospace, microelectronics, information, etc. put forward higher requirements. The heat dissipation paint is a special paint that improves the heat dissipation efficiency of the su...

AI Technical Summary

Problems solved by technology

Nano-silica has a large specific surface area and high specific surface energy. It is easy to agglomerate in the coating to form secondary particles, resulting in a decrease in the performance of strengthening and toughening. At the same time, the hydroxyl groups on the surface also strengthen this phenomenon.