High-performance heat conduction material

Abstract

The invention discloses a high-performance heat conduction material. The high-performance heat conduction material contains organic silicon resin, hexagonal boron nitride, aluminum oxide, graphene, platinum catalyst, hydrogen-containing silicone oil with hydrogen content of 0.5 to 0.8 percent, silane coupling agent, organosiloxane surface modifier, organic silicone oil and antioxidant 168; the organic silicon resin is low in surface tension, small in viscosity-temperature coefficient, high in compressibility and high in gas permeability, and the hexagonal boron nitride is high in precision and excellent in heat conduction performance and heat radiation performance, so that when the hexagonal boron nitride material is used for preparing an LED heat radiator, a high effect of heat resistance transfer and heat radiation for the LED can be realized; the hexagonal boron nitride and the aluminum oxide are used as heat conduction fillers, so that the cost performance is high; the graphene and the heat conduction fillers are combined with organic silicon resin in the formula, so that the reaction performance of the hexagonal boron nitride in the preparation process can be enhanced through the surface modifier, the compatibility and mechanical properties among the materials can be coordinately improved by virtue of the coupling agent, hydrogen-containing silicone oil and other additives, and a product with high quality and high performance can be obtained.

Description

technical field

[0001] The invention relates to an organosilicon polymer material and a preparation method thereof, in particular to a high-performance heat-conducting material and a preparation method thereof, and belongs to the technical field of polymer materials. Background technique

[0002] Silicone products are based on silicon-oxygen (Si-O) bonds as the main chain structure, so silicone products have the characteristics of high thermal stability, high weather resistance, electrical insulation performance, low surface tension and low surface energy, and physiological inertia. , due to the above-mentioned excellent properties of silicone, its application range is very wide. It is not only used as a special material in aviation, cutting-edge technology, and military technology departments, but also in various sectors of the national economy. Its application range has expanded to: construction, electronics, textiles, automobiles, machinery, leather and paper, chemical in...