▎ 摘　　要

NOVELTY - A graphene film is grown on copper foil, to obtain copper foil/graphene film complex. A polymer transition layer (tl) is sprayed on graphene film of copper foil/graphene film composite and cured, to obtain copper foil/graphene film/polymer transition complex. The copper foil/graphene film/polymer transition/polymethylmethacrylate composite is formed by spraying liquid containing polymethylmethacrylate and curing. The copper foil is etched and transferred to zinc sulfide window. A graphene-based infrared electromagnetic shielding filter is formed on zinc sulfide window. USE - Preparation of graphene-based infrared electromagnetic shielding filter used for zinc sulfide window (claimed). ADVANTAGE - The method enables preparation of graphene-based infrared electromagnetic shielding filter with excellent electromagnetic characteristics and high infrared transmittance by simple method. DETAILED DESCRIPTION - A graphene film is grown on surface of copper foil, to obtain copper foil/graphene film complex. A polymer transition layer (tl) is sprayed on side of graphene film of copper foil/graphene film composite and cured, to obtain copper foil/graphene film/polymer transition complex. The copper foil/graphene film/polymer transition/polymethylmethacrylate composite is formed by spraying liquid containing polymethylmethacrylate and curing. The copper foil is etched, to obtain graphene film/polymer transition/polymethylmethacrylate composite. The graphene film/polymer transition/polymethylmethacrylate composite is transferred to inner surface of zinc sulfide window, to obtain zinc sulfide/graphene film/polymer transition/polymethylmethacrylate composite. The zinc sulfide/graphene film/polymer transition/polymethylmethacrylate composite is placed in organic solvent such that the polymer transition layer is dissolved, and polymethylmethacrylate carrier and graphene film are separated, to obtain zinc sulfide/graphene film complex. The zinc sulfide window inside transfer of graphene film until the zinc oxide window inside graphene film meets the electromagnetic properties of electromagnetic shielding requirements. A graphene-based infrared electromagnetic shielding filter is formed on surface of zinc sulfide window.