▎ 摘　　要

NOVELTY - The preparation of graphene oxide-polyaniline composite electromagnetic shielding material, involves (1) ultrasonically dispersing graphene oxide in aqueous solution of perchloric acid, adding aniline, magnetic stirring, obtaining solution (I), (2) adding oxidizing agent ammonium persulfate to perchloric acid aqueous solution, ultrasonically dispersing, obtaining solution (II), (3) mixing solutions (I) and (II), continuously stirring in ice bath for 24 hours to obtain dark green dispersion, washing with deionized water, ethanol and acetone to regulate pH value to 6-7, and filtering. USE - Preparation of graphene oxide-polyaniline composite electromagnetic shielding material (claimed). ADVANTAGE - The method enables use of conductive polyaniline and graphene oxide to improve conductivity, increases surface polarization of graphene oxide and polyaniline, with excellent electromagnetic wave shielding efficiency, simple process, easily available raw materials, and has wide applications.