▎ 摘　　要

NOVELTY - Preparing intercalation graphene blending polyurethane opening sponge comprises preparing the intercalated graphene nanosheet by hydrothermal intercalation dihydric alcohol, using crystalline flake graphite to prepare the graphite oxide, (ii) dispersing the intercalated graphene nano sheet in the polyether polyol with large viscosity, dispersing in the sand mill to obtain graphene dispersion liquid, (iii) mixing and foaming the graphene dispersion with auxiliary agent and isocyanate through a pump to obtain a foamed sponge, and (iv) cooling the foaming sponge, curing and shaping, blasting, cutting, drying and removing odour. USE - The sponge is useful for adsorption. ADVANTAGE - The method meets the requirements of large-scale production, ensures the dispersion of graphene during preparation, and fully exposes and utilizes graphene after blasting, has excellent resilience, strong hydrophobic ability, can better absorb harmful indoor gases.