▎ 摘　　要

NOVELTY - Preparing composite material graphene-polyurethane sponge comprises using sodium borohydride as reducing agent to reduce graphene oxide under hydrothermal condition, preparing graphene oxide, and oxidized graphene solution, using de-ionized water and washing the polyurethane sponge and drying, cleaning and drying of the polyurethane sponge ands configuring the graphene oxide solution, fully soaking, taking out and drying to obtain the graphene oxide-polyurethane sponge. USE - The method is useful for preparing composite material graphene-polyurethane sponge (claimed). ADVANTAGE - The method is suitable for large-scale industrial production. The prepared graphene-polyurethane sponge has hydrophobic and oleophilic property. DETAILED DESCRIPTION - Preparing composite material graphene-polyurethane sponge comprises using sodium borohydride as reducing agent to reduce graphene oxide under hydrothermal condition, (1) preparing graphene oxide, and oxidized graphene solution, (2) using de-ionized water and washing the polyurethane sponge and drying, (3), cleaning and drying of the polyurethane sponge into step (1) configuring the graphene oxide solution, fully soaking, taking out and drying to obtain the graphene oxide-polyurethane sponge, (4) adding graphene oxide-polyurethane sponge into the sodium borohydride solution, and placing in the water bath to obtain the product.