▎ 摘　　要

NOVELTY - Electromagnetic shielding material comprises polymeric matrix and a graphene-biological carbon composite filler dispersed in the polymeric matrix. The graphene-biological carbon composite filler contains biological carbon and graphene coated on the surface of the biological carbon. USE - Electromagnetic shielding material used for preparing an electronic device or used in communication device (claimed). ADVANTAGE - The electromagnetic shielding material has low content of graphene, reduced production cost, simple and versatile preparation method, strong commonality, and is suitable for large-scale popularization and application. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method for producing an electromagnetic shielding material, which involves dispersing a graphene-biological carbon composite filler in a polymer monomer or a polymer prepolymer, and obtaining the electromagnetic shielding material through in-situ polymerization, or dispersing graphene-biological carbon composite filler in the polymer melt, and melt-blending it to obtain the electromagnetic shielding material, or dispersing graphene-biological carbon composite filler in a polymer solution, mixing it uniformly, and removing solvent to obtain the electromagnetic shielding material.