▎ 摘　　要

NOVELTY - A polymer composite thin film comprises (a) a reduced graphene oxide (rGO) as carbonaceous fillers and (b) a mixture of polymers containing polyvinylidene fluoride (PVDF), polymethyl methacrylate (PMMA), PTFE, and polystyrene (PS). USE - Polymer composite thin film used for electromagnetic interference shielding in electrode materials used in batteries, double-layered capacitors, fuel cells and solar cells. ADVANTAGE - The polymer composite thin film is mechanically and thermally stable and possesses electromagnetic interference (EMI) shielding. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for preparation of polymer composite thin film, which involves mixing PVDF, PMMA, PS, and reduced graphene oxide in dimethyl formamide solvent, heating and stirring the mixture obtained for six hours, adding PTFE to the solution, pouring the mixture on a glass Petridish, and evaporating the solvent for 2 hours.