▎ 摘　　要

NOVELTY - Synthesizing aggregated graphene-reinforced aqueous polyurethane corrosion resistant coating comprises firstly ultrasonically dispersing graphene oxide in deionized water, then adding phosphoric acid, magnetically stirring for 12 hours at a certain temperature, adding dodecyl benzene sulfonic acid solution, stirring, then adding aniline and ammonium persulfate, stirring at low temperature for a certain time, washing and drying to obtain the grafted graphene aggregated, mixing the obtained graphene oxide aggregated with a certain amount of aqueous polyurethane, and performing mechanical stirring, then coating on the protected metal steel plate surface rod coating or suspension coating method, placing the coated coating at normal temperature for 2-4 hours, and then adding into an oven to dry at a certain temperature. USE - The method is useful for synthesizing aggregated graphene-reinforced aqueous polyurethane corrosion resistant coating. ADVANTAGE - The method: solves easy agglomeration between graphene sheets through covalent graft polymerization; solves dispersibility and compatibility of organic polymer grafted inorganic nanoparticles between high molecular polymers; improves anti-corrosion effect of the polymerized anti-corrosion coating via electrochemical workstation test results (all claimed); uses the aggregated graphene, which can be used as the doped particles of the aqueous coating, and coating to the protected metal by surface of rod coating or suspension coating.