▎ 摘　　要

NOVELTY - High temperature resistant graphene oxide nano-ceramic coating comprises a two-layer structure comprising an inner layer and an outer layer. The inner layer comprises graphene, nano-alumina powder and nano-silica powder, and graphene, nano-alumina powder and nano-titanium oxide powder are combined through a silica sol and outer layer is a transparent silica protective film formed by a ceramic resin at a high temperature of 300-400 degrees C. USE - The graphene oxide nano-ceramic coating is useful for radiators with high temperature and low temperature below 800 degrees C. ADVANTAGE - The coating: has high thermal conductivity of 50 80 W/M.k and temperature resistance and far-infrared function of above 0.9 thus improves the performance of ceramics; and avoids graphene oxidation without disturbing the far infrared function of the inner layer. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for preparing a high temperature resistant graphene oxide nano-ceramic coating, comprising (i) adding graphene, nano-alumina powder and nano-silica powder into the mixer according to the weight ratio of the inner layer raw materials, and adding silica sol, defoaming agent, dispersant, thickening and leveling agent; (ii) stirring mixer at speed of 800-1000 revolutions/minute for 15-20 minutes, so that the inner layer raw materials are sufficiently and uniformly dispersed in the silica sol to obtain an inner layer coating; (iii) coating the inner layer coating on the product, and drying until the water in the silica sol is dispersed to form the inner layer; and (iv) coating ceramic resin, and then sintered at a high temperature of 300-400 degrees C and burning away resin to form a transparent silica protective film as an outer layer.