▎ 摘　　要

NOVELTY - Graphene polyurethane composite sponge material with good stain resistance, comprises a polyurethane sponge substrate, and an antifouling coating disposed on the polyurethane sponge substrate. The antifouling coating is obtained by curing the antifouling slurry. The anti-fouling slurry includes 1-5 pts. wt. graphene nanosheets, 2-10 pts. wt. nano-titanium dioxide, 5-15 pts. wt. silicon micro-powder, 0.2-8 pts. wt. highly branched polysiloxane, 0.1-5 pts. wt. hydroxy silicone oil, and 40-60 pts. wt. acrylic emulsion. USE - The sponge material is useful in mattresses, back cushions, pillow cores or cushions (claimed). ADVANTAGE - The sponge material anti-fouling and anti-bacterial properties, has a good protective effect on tea, vinegar, markers and other stains, and has high resilience, a soft hand feel, good strength and heat dissipation. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for preparing graphene polyurethane composite sponge material, comprising coating an anti-fouling slurry on a polyurethane sponge substrate through an extrusion coating process, and curing to obtain the graphene polyurethane composite sponge material.