Nano heat-dissipation coating and preparation method

Abstract

Provided are a nano heat-dissipation coating and a preparation method. The nano heat-dissipation coating is prepared by mixing 100-200 parts of deionized purified water, 100-200 parts of nano alumina (Al2O3) colloid (5-20 nm), 1-5 parts of formic acid (analytically pure), 200-300 parts of methyl trimethoxy silane (99%), 50-100 parts of gamma-glycidoxypropyltrimethoxysilane KH560, 50-100 parts of nano titanium dioxide powder and 100-200 parts of silicon powder. The nano heat-dissipation coating can lead out the heat produced inside an LED lamp holder, an automobile engine and a motorcycle engine in work and is high in heat-dissipation efficiency and long in service life. Based on the raw materials and proportion adopted for the nano heat-dissipation coating, the prepared coating further has high hardness (8H), high abrasion-resisting performance and the like besides a function of high-efficiency heat dissipation.

Description

technical field [0001] The invention relates to a heat-dissipating paint, in particular to a nano heat-dissipating paint and a preparation method. Background technique [0002] In the prior art, heat dissipation components such as metal heat sinks and heat pipes are used to dissipate heat from heat-generating components or housings. Although the heat dissipation effect of metal materials is also acceptable, they are expensive and not suitable for lightweight products. Design, so there is the development and application of heat dissipation coatings. Existing heat-dissipating coatings use fluorocarbon resin as a base material to mix fillers with a pore structure, and the fillers are selected from nano-bamboo charcoal, nano-carbon tubes, nano-zinc oxide, nano-germanium oxide or a combination of the above-mentioned fillers; the base material and the filler The mixed solvent is selected from thinner, ethyl acetate, absolute ethanol, distilled water or the combination of the abov...

AI Technical Summary

Problems solved by technology

[0002] In the prior art, heat dissipation components such as metal heat sinks and heat pipes are used to dissipate heat from heat-generating components or housings. Although the heat dissipation effect of metal materials is also acceptable, they are expensive and not suitable for lightweight products. design, thus the development and application of heat dissipation coatings

Existing heat-dissipating coatings use fluorocarbon resin as a base material to mix fillers with a pore structure, and the fillers are selected from nano-bamboo charcoal, nano-carbon tubes, nano-zinc oxide, nano-germanium oxide or a combination of the above-mentioned fillers; the base material and the filler The mixed solvent is selected from thinner, ethyl acetate, absolute ethanol, distilled water or the combination of the above-mentioned mixed solvents; this kind of coating uses many kinds of raw materials and high cost, and after the heat dissipation surface is cured to form a heat dissipation layer, due to the base material used Poor pollution resistance such as weather resistance, heat resistance, low temperature resistance and chemical resistance, resulting in poor heat dissipation performance of the heat dissipation layer formed after curing, and it is difficult to achieve high-efficiency heat dissipation effect