▎ 摘　　要

NOVELTY - Graphene oxide and deionized water are ultrasonically stirred to obtain graphene oxide aqueous solution. Weakly basic tris(hydroxymethyl)aminomethane-based buffer solution and dopamine are added and stirred uniformly. Reaction liquid is provided into a glass vessel, stirred, and evaporation-induced self-assembly is carried out. Reduction process of resultant product is carried out using hydroiodic acid, to obtain layered graphene-integrated biomimetic composite material having electroconductivity of more than 70 Sm-1. USE - Preparation of layered graphene-integrated biomimetic composite material used in aerospace and tissue engineering applications. ADVANTAGE - The method enables preparation of layered graphene-integrated biomimetic composite material having high toughness, strength and electroconductivity. DETAILED DESCRIPTION - Graphene oxide and deionized water are ultrasonically stirred to obtain graphene oxide aqueous solution. Weakly basic tris(hydroxymethyl)aminomethane-based buffer solution and dopamine are added to graphene oxide aqueous solution and stirred uniformly, such that amino functional group of dopamine and carboxyl and epoxy groups of graphene oxide are crosslinked. Reaction liquid is provided into a glass vessel, stirred, and evaporation-induced self-assembly method is carried out. Reduction process of resultant product is carried out using hydroiodic acid, to obtain layered graphene-integrated biomimetic composite material having electroconductivity of more than 70 Sm-1.