▎ 摘　　要

NOVELTY - Graphene oxide modified sponge comprises 0.1-1 pts. wt. graphene oxide, 100-200 pts. wt. polyvinyl alcohol, 1-5 pts. wt. foaming agent, 100-200 pts. wt. crosslinking agent and 50-100 pts. wt. catalyst. USE - The graphene oxide modified sponge is useful for vacuum sealing drainage (claimed). ADVANTAGE - The material is antibacterial. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for preparing graphene oxide modified sponge comprising (i) taking the raw materials, (ii) dissolving polyvinyl alcohol in water to obtain polyvinyl alcohol solution, (iii) adding the graphene oxide into the polyvinyl alcohol solution, adding foaming agent, catalyst and crosslinking agent, heating at 55-95 degrees C, lower solidifying to form graphene oxide modified sponge, washing to pH 6.8-7.3, cutting, radiating and sterilizing.