▎ 摘　　要

NOVELTY - Preparing bionic environment adaptive self-repairing coating, involves (a) carrying out polycondensation reaction on a first mixed reaction system containing isocyanate and polyol to obtain a prepolymer, (b) reacting a second mixed reaction system containing a material containing non-covalent hydrogen bonds and/or a material containing covalent disulfide bonds and a prepolymer to obtain a polyurethane material, (c) mixing a polyurethane material and a modified graphene material, and distributing the modified graphene material in the polyurethane material in a parallel arrangement manner to obtain a pearl layer structure composite coating, and (d) solidifying the composite coating with the pearl-like layer structure to obtain final product. USE - Method for preparing bionic environment adaptive self-repairing coating used in metal corrosion prevention or flexible robot preparation (claimed). ADVANTAGE - The bionic environment adaptable self-repairing coating has high ultimate tensile strength and excellent mechanical properties, due to the synergy of dynamic hydrogen bonds, flexible disulfide bonds, and interfacial hydrogen bonds, and also exhibits superior mechanical properties and outstanding self-healing behavior at room temperature and uniform in saline environments. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a bionic environment adaptive self-repairing coating, which comprises a modified graphene material and a polyurethane material. The modified graphene material is distributed in the polyurethane material in a parallel arrangement manner. The bionic environment adaptive self-repairing coating is formed by connecting non-covalent hydrogen bond, a covalent disulfide bond and a graphene interface functional bond, and preferably, the graphene interface functional bond comprises an interface non-covalent hydrogen bond and an interface covalent disulfide bond.