Amorphous calcium-copper-titanium-oxygen ceramic/polyimide composite film and preparation method thereof

The invention relates to the field of the ceramic/polyimide composite film and the preparation method thereof, and particularly discloses an amorphous calcium-copper-titanium-oxygen ceramic/polyimide composite film and a preparation method thereof.. The film and the method aim to solve the problems that the present crystalline calcium-copper-titanium-oxygen ceramic/polyimide composite film preparation method consumes high energy in sintering crystalline ceramics and the prepared crystalline calcium-copper-titanium-oxygen ceramic/polyimide composite film has lower specific inductive capacity during doping at low density (the mass percentage of the ceramics is lower than 20%). The amorphous calcium-copper-titanium-oxygen ceramic/polyimide composite film is prepared from amorphous calcium-copper-titanium-oxygen ceramic particles, (4, 4')- diaminodiphenyl ether, pyromellitic dianhydride and a solvent. The preparation method is as follows: I, preparing an amorphous calcium-copper-titanium-oxygen ceramic/ polyamide acid mixed solution; and II, by the way of heating for imidization after coating application, preparing to obtain the amorphous calcium-copper-titanium-oxygen ceramic/polyimide composite film. The film and the method are applied to the fields of information, electronics and electricity.