▎ 摘　　要

NOVELTY - Preparation of fatigue-resistant biomimetic graphene nanocomposite material involves preparing aqueous solution of enriched graphene by ultrasonic method, adding a tris-hydroxymethylaminomethane buffer solution and a dopamine solution, crosslinking to form an oxidized graphene-polydopamine heterogeneous primer, adding nickel chloride solution, crosslinking, forming chelated structure, assembling the solution into nanocomposite by vacuum filtration, reducing, washing, drying and repeating the processes. USE - Preparation of fatigue-resistant biomimetic graphene nanocomposite material (claimed). ADVANTAGE - The biomimetic graphene nanocomposite material having excellent fatigue resistance, conductivity, strength and toughness is manufactured. DETAILED DESCRIPTION - Preparation of fatigue-resistant biomimetic graphene nanocomposite material involves preparing aqueous solution of enriched graphene by ultrasonic method, adding a tris-hydroxymethylaminomethane buffer solution and a dopamine solution to the graphene solution under stirring, performing covalent crosslinking to form an oxidized graphene-polydopamine (GO-PDA) heterogeneous primer, adding nickel chloride solution in drops, crosslinking, forming chelated structure to obtain uniformly dispersed mixed solution, assembling the mixed solution into nanocomposite by vacuum filtration, reducing with hydroiodic acid, washing, drying to produce graphene nanocomposites material, producing hetero-based material with different polydopamine contents by regulating the volume of dopamine solution, determining the optimal value of the polydopamine, regulating content of graphene oxide and nickel ion, and repeating the processes.