▎ 摘　　要

NOVELTY - The method for preparing laminated self-assembled oxidized graphene composite film, involves coating aqueous dispersion of oxidized graphene onto substrate, immersing substrate with aqueous dispersion of graphene oxide in coagulating solution, drying, coating the aqueous graphene dispersion on substrate with composite film, repeating immersion-drying-coating process and obtaining multilayer self-assembled oxidized graphene composite film. The solute of coagulating solution is selected from ionic liquid, amine and inorganic salt. USE - Method for preparing laminated self-assembled oxidized graphene composite film. ADVANTAGE - The method enables simple and economical preparation of laminated self-assembled oxidized graphene composite film with high mechanical properties. DETAILED DESCRIPTION - Method for preparing laminated self-assembled oxidized graphene composite film, involves coating aqueous dispersion of oxidized graphene onto a substrate, immersing substrate with aqueous dispersion of graphene oxide in coagulating solution, removing the substrate, drying to obtain monolayer self-assembled oxidized graphene composite film, coating the aqueous graphene dispersion on substrate with composite film, repeating the immersion-drying-coating process and obtaining multilayer self-assembled oxidized graphene composite film. The aqueous dispersion of graphene oxide is obtained by ultrasonically dispersing oxidized graphene in distilled water. The solute of coagulating solution is selected from ionic liquid, amine and inorganic salt.