▎ 摘　　要

NOVELTY - High heat conductive insulating ceramic comprises 30-50 pts. wt. mica powder, 20-30 pts. wt. titanium dioxide, 30-50 pts. wt. alumina, 10-20 pts. wt. zirconia, 5-10 pts. wt. silicon carbide, 10-20 pts. wt. silicon dioxide, 4-8 pts. wt. glass fiber, 3-6 pts. wt. silicon nitride whisker, 6-12 pts. wt. graphene, 2-4 pts. wt. 2,4-dichlorobenzoyl peroxide, 3-5 pts. wt. octylphenol polyoxyethylene ether, 3-6 pts. wt. diaminodiphenyl sulfone, 1-2 pts. wt. silane coupling agent, 2-4 pts. wt. zirconate coupling agent and 4-8 pts. wt. auxiliary agent. USE - The ceramic is useful for radiating electronic product (claimed). ADVANTAGE - The ceramic has good conductivity. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for preparing high heat conductive insulating ceramic, comprising (i) crushing the mica powder, titanium dioxide, alumina, zirconia, silicon carbide, and silicon dioxide, passing through 200-300 mesh sieve, mixing, adding 2,4-dichlorobenzoyl peroxide, octylphenol polyoxyethylene ether, diaminodiphenyl sulfone, adding 1-2 times deionized water, mixing, wet ball milling to obtain slurry; (ii) adding glass fiber, silicon nitride whisker, graphene, silane coupling agent, zirconate coupling agent, and auxiliary agent into the slurry obtained in step (i), stirring for 10-15 minutes at 300-500 revolutions/minute, heating to 80-100 degrees C, performing ultrasonic treatment at 20-30 KHz for 20-30 minutes to obtain mixed slurry; (iii) injecting the mixed slurry obtained in the step (ii) into a hot press mold, hot pressing at 200-300 kgf/cm2, at 120-150 degrees C, taking out the exhaust gas for 8-10 times, and cooling to obtain molding material; and (iv) heating the ceramic blank from room temperature to 130-150 degrees C for 20-30 minutes, allowing to stand for 10-20 minutes, heating to 200-220 degrees C for 1-1.2 hours, allowing to stand for 50-60 minutes, heating again to 1000-1200 degrees C for 2-2.5 hours, allowing to stand for 1.2-1.5 hours, discharging and cooling.