▎ 摘　　要

NOVELTY - Electro-thermal coating material comprises agglomerant, nano graphene sized bamboo carbon fibre and heat-resistant filling material. USE - Electro-thermal coating material comprise agglomerant used in metal substrate, wood substrate, glass substrate or ceramic substrate coating (claimed), building, cultivation, decoration and household. ADVANTAGE - The method enables to prepare electro-thermal coating that has excellent conductive heating uniformity, heat aging cracking resistance and heat resistance, and excellent electric heating performance, and is easy to age and crack, and provides health product having excellent heat resistance and conductivity. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method of preparing electrothermal coating, which involves: (1) adding the polyacrylamide, oxidized graphene nano-particles into water for first stirring to obtain oxidized graphene nano-particle electro-thermal solution; (2) adding oxidation graphene, nano-particle electro-thermal solution, phase change micro-capsule and gypsum for second stirring to obtain gypsum electro-thermal solution; and (3) adding polytetrafluoroethylene resin and bamboo carbon fibre into plaster electric heating solution for first reaction to obtain electrothermal coating.