▎ 摘　　要

NOVELTY - Modifying sponge based on graphene waterborne polyurethane comprises (i) using amine modifier to modify graphene oxide, (ii) mixing and reacting diisocyanate compound, polyol and hydrophilic monomer to specific extent, adding obtained reaction system to modified graphene oxide dispersion, and after mixing reaction is sufficient, obtaining aqueous polyurethane emulsion grafted with grapheme, and (iii) placing polyurethane sponge in waterborne polyurethane emulsion grafted with graphene, emulsion infiltrating and spreading polyurethane sponge, taking out polyurethane sponge and drying to obtain graphene waterborne polyurethane modified sponge. USE - The method is useful for modifying sponge based on graphene waterborne polyurethane.