▎ 摘　　要

NOVELTY - High dielectric polyimide film comprises polyimide and graphene oxide uniformly filled in the polyimide. USE - Used as high dielectric polyimide film. ADVANTAGE - The high dielectric polyimide film improves the dielectric property of the polyimide, the dielectric loss of the polyimide film is quickly reduced. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for preparing high dielectric polyimide film comprising (1) adding diamine monomer and tetracarboxylic dianhydridemonomer for polycondensation reaction to obtain polyamic acid, adding dehydrating agent and imidization agent for imidization reaction to obtain the polyimide, (2) mixing the polyimide obtained in step (1) with graphene oxide uniformly, coating film on the carrier and heating treatment to obtain the high dielectric polyimide film; and #thin film capacitor comprising the high dielectricpolyimide film.