▎ 摘　　要

NOVELTY - High thermal conductivity composite material comprises e.g. 10-12 pts. wt. silicon carbide, 5-8 pts. wt. aluminum powder, 5-13 pts. wt. silicon dioxide, 5-7 pts. wt. yttrium(III) oxide, 2-5 pts. wt. epoxy 828, 3-8 pts. wt. aluminum nitride, 1-2 pts. wt. polyvinyl butyral, 1-2 pts. wt. stearic acid, 2-4 pts. wt. silver particles, 1-2 pts. wt. dimethyl silicone oil, 2-3 pts. wt. graphene, 2-3 pts. wt. lithium hydroxide, 3-5 pts. wt. cadmium telluride, 1-2 pts. wt. mercaptopropionic acid, 2-4 pts. wt. cellulose, hydrogen fluoride solution, acetone, ethanol and distilled water. USE - Used as high thermal conductivity composite material. DETAILED DESCRIPTION - High thermal conductivity composite material comprises 10-12 pts. wt. silicon carbide, 5-8 pts. wt. aluminum powder, 5-13 pts. wt. silicon dioxide, 5-7 pts. wt. yttrium(III) oxide, 0.5-1.5 pts. wt. silane coupling agent A1100, 3-4 pts. wt. montmorillonite, 2-3 pts. wt. curing agent, 1-3 pts. wt. emulsified silicone oil, 2-5 pts. wt. epoxy 828, 3-8 pts. wt. aluminum nitride, 1-2 pts. wt. polyvinyl butyral, 1-2 pts. wt. stearic acid, 2-4 pts. wt. silver particles, 1-2 pts. wt. dimethyl silicone oil, 2-3 pts. wt. graphene, 1-3 pts. wt. poly-methyl triethoxysilane, 1-2 pts. wt. dibutyltin dilaurate, 3-6 pts. wt. multi-walled carbon nanotubes, 1-2 pts. wt. 2,4-imidazole, 2-3 pts. wt. lithium hydroxide, 1-2 pts. wt. urea, 3-5 pts. wt. cadmium telluride, 1-2 pts. wt. mercaptopropionic acid, 2-4 pts. wt. cellulose, hydrogen fluoride solution, acetone, ethanol and distilled water. An INDEPENDENT CLAIM is also included for preparation of (i) mixing silane coupling agent A1100, ethanol and water in a volume ratio of 20:70:8-10, stirring hydrolysis for 10-30 minutes, adding silicon carbide, aluminum powder and silicon dioxide, stirring at 60-80 degrees C for 30-50 minutes, carrying out ultrasonic dispersion for 1-2 hours, washing with alcohol for 3-5 times, vacuum drying at 105-125 degrees C for 3-5 hours, (ii) adding yttrium(III) oxide and ethanol in a ratio of 1:2-4 into 2-3 pts. wt. aluminum nitride, mixing in ball mill for 2-4 hours, adding absolute ethanol solution of polyvinyl butyral, and then placing in the muffle furnace temperature to 450-550 degrees C for 1-2 hours, sintering at 1700-1900 degrees C for 2-3 hours under nitrogen atmosphere, (iii) mixing stearic acid with ethanol in a ratio of 1:3-5, heating to 60-80 degrees C and stirring, adding silver particles and material obtained in step (ii), stirring at for 10-30 minutes, drying at 75-95 degrees C for 1-2 hours in oven, and then adding dimethyl silicone oil and graphene, then feeding into a colloidal stirrer for 1-2 hours, calcining at 140-160 degrees C for 2-4 hours, and then stirring for 1-2 hours, (iv) mixing epoxy 828, polyvinyl butyral and remaining aluminum nitride, heating at 75-95 degrees C and stirring, adding dibutyltin dilaurate and distilled water in a ratio of 1:2-5, reacting at 80-95 degrees C for 3-5 hours, then mixing with multi-walled carbon nanotubes, carrying out ultrasonic dispersion at 60-80 degrees C for 1-2 hours, adding 2,4-imidazole, continue to oscillate by ultrasonic for 1-2 hours, (v) dissolving lithium hydroxide and urea in the mercapto propionic acid solution of the semiconductor nanoparticles cadmium telluride, adding cellulose at -20 to -12 degrees C, stirring for 1-3 hours to obtain semiconductor nanoparticle complex solution, (vi) mixing materials obtained in (i), (ii), (iii) and (v) with montmorillonite, stirring at 60-80 degrees C for 1-2 hours, adding curing agent and emulsified silicone oil, stirring for 20-40 minutes, placing in a vacuum oven for vacuum deaeration at 65-85 degrees C for 1-2 hours, and then feeding into mold, placing in a dry box for curing at 60-85 degrees C for 3-5 hours, aging at 75-95 degrees C for 3-6 hours and stripping to obtain final product.