▎ 摘　　要

NOVELTY - An electrothermal coating comprises carbon material comprising at least one of graphene or carbon nanotubes, conductive fillers comprising nano-silver which is filled in the carbon material, and viscous fillers comprising organic silicon components and inorganic silicon components. The carbon material is modified with a hydrophilic group. USE - Electrothermal coating. DETAILED DESCRIPTION - An INDEPENDENNT CLAIM is included for preparation of the electrothermal coating, which involves (A) mixing the carbon material and hydrophilic unit to prepare carbon material composite dispersion, (B) mixing silver-containing inorganic salts with organic redox materials to obtain nano-silver dispersion, (C) mixing the organic silicon component and inorganic silicon component to obtain mixture (M1), (D) adding the composite dispersion and nano-silver dispersion to the mixture (M1) to obtain electrothermal ink, providing a substrate, and arranging the electrothermal ink on the surface of the substrate.