▎ 摘　　要

NOVELTY - Preparing graphene oxide (GO)-cerium (Ce)-metal organic frameworks(MOF) doped polydopamine (PDA)-polyurethane (PU) superhydrophobic self-repairing anti-corrosion coating involves coordinating 2-mercaptobenzimidazole (2MBI) and cerium nitrate hexahydrate, adding graphene oxide and organic ligand pyrobenzenetricarboxylic acid to obtain a double-coordinated metal-organic framework material Ce-MOF with corrosion inhibition effect grown on graphene oxide (GO) in situ to obtain nanoparticle, using polydopamine (PDA) to improve the dispersion of graphene oxide, improving the compactness and mechanical properties of the coating, using hexadecyltrimethoxysilane to superhydrophobic modify the nanoparticle to obtain superhydrophobic nanoparticle. USE - Method for preparing graphene oxide-cerium-metal organic frameworks doped polydopamine-polyurethane superhydrophobic self-repairing anti-corrosion coating. ADVANTAGE - The prepared graphene oxide-cerium-metal organic frameworks doped polydopamine-polyurethane superhydrophobic self-repairing anti-corrosion coating has improved mechanical property and super-hydrophobic stability, and has excellent long-term corrosion prevention effect. DETAILED DESCRIPTION - Preparing graphene oxide (GO)-cerium (Ce)-metal organic frameworks(MOF) doped polydopamine (PDA)-polyurethane (PU) superhydrophobic self-repairing anti-corrosion coating involves coordinating 2-mercaptobenzimidazole (2MBI) and cerium nitrate hexahydrate, adding graphene oxide and organic ligand pyrobenzenetricarboxylic acid to obtain a double-coordinated metal-organic framework material Ce-MOF with corrosion inhibition effect grown on graphene oxide (GO) in situ to obtain nanoparticle, using polydopamine (PDA) to improve the dispersion of graphene oxide, improving the compactness and mechanical properties of the coating, using hexadecyltrimethoxysilane to superhydrophobic modify the nanoparticle to obtain superhydrophobic nanoparticle, spraying pure polyurethane layer (PU) on the surface of the metal material to be protected, mixing uniformly superhydrophobic nanoparticle with polyurethane, spraying on the surface of metal materials with polyurethane layer to obtain GO-Ce-MOF doped PDA/PU superhydrophobic self-repairing anti-corrosion coating, and testing electrochemical performance and superhydrophobic performance after the coating is completely cured.