▎ 摘　　要

NOVELTY - Antibacterial coating is claimed. The antibacterial coating is prepared by adding quaternary ammonium salt antibacterial agent and graphene oxide into the dispersing agent, stirring and dispersing, then heating at 80℃, stirring and reacting for 12 hours, washing and drying to obtain the modified filler, then adding the modified filler, modifier and polyurethane powder intodispersant, stirring and dispersing for 30 minutes, then setting the temperature at 50-60℃ and stirring for 4-5 hours to obtain final product. USE - The antibacterial coating is useful for surface protection of stainless steel structures (claimed). ADVANTAGE - The modifier: can realize the heat treatment repair of the coating and improve its protection for stainless steel. The antibacterial agent: has excellent antibacterial effect with the structure of graphene oxide and Schiff base; improves the coating film after corrosion resistance and anti-pollution performance.