▎ 摘　　要

NOVELTY - The preparation method of graphene oxide-modified aqueous polyurethane emulsion involves weighing N,N-dimethylformamide, graphene oxide, catalyst and glycidyl neodecanoate and then reacting at 120-150 degrees C, adding isophorone diisocyanate and poly(tetramethylene adipate) to the mixture and then heating at 85 degrees C for 3 hours, adding dibutyltin dilaurate, N-methylpyrrolidone, epoxy resin, 2,2-dimethylolpropionic acid and trimethylolpropane to the mixture and then reacting at 60 degrees C, adding triethylamine and deionized water to the mixture and reacting at 60 degrees C and filtering. USE - The method is useful for preparation of graphene oxide-modified aqueous polyurethane emulsion. ADVANTAGE - The method enables preparation of graphene oxide-modified aqueous polyurethane emulsion with excellent corrosion resistance, hydrophobicity and shielding capacity. DETAILED DESCRIPTION - The preparation method of graphene oxide-modified aqueous polyurethane emulsion involves weighing N,N-dimethylformamide, graphene oxide, catalyst and glycidyl neodecanoate and then reacting at 120-150 degrees C, adding isophorone diisocyanate and poly(tetramethylene adipate) to the mixture and then heating at 85 degrees C for 3 hours, adding dibutyltin dilaurate, N-methylpyrrolidone, epoxy resin, 2,2-dimethylolpropionic acid and trimethylolpropane to the mixture and then reacting at 60 degrees C, adding triethylamine and deionized water to the mixture and then reacting at 60 degrees C, cooling to 40 degrees C and filtering.