▎ 摘　　要

NOVELTY - Preparation of a graphene oxide graft polyhedral oligomeric silsesquioxane (POSS) modified epoxy resin comprises preparing graphite oxide by carrying out Hummers oxidation using crystalline flake graphite, adding to 50-200 mL distilled water, ultrasonically dispersing for 10-50 minutes, adding 1-7 mL gamma -amino hexahedral silsesquioxane and sodium hydroxide, ultrasonically dispersing for 1-5 hours at 50-100 degrees C, cooling, adding water, washing with anhydrous ethanol, and drying; and adding to epoxy resin substrate, adding 4,4'-diaminodiphenyl sulfone curing agent, and molding. USE - Method for the preparation of a graphene oxide graft POSS modified epoxy resin (claimed). ADVANTAGE - The method is inexpensive, and has easy and simple operation. DETAILED DESCRIPTION - Preparation of a graphene oxide graft POSS modified epoxy resin comprises: (A) preparing graphite oxide by carrying out Hummers oxidation using crystalline flake graphite as raw material, adding 0.1-1 g graphite oxide to 50-200 mL distilled water in a three-opening flask, uniformly dispersing the mixture under ultrasonic environment for 10-50 minutes to uniformly form graphene oxide mixed liquid, adding 1-7 mL gamma -amino hexahedral silsesquioxane and 1-10 g sodium hydroxide, regulating the pH to 5-10, continuously ultrasonically dispersing the mixture for 1-5 hours at 50-100 degrees C, cooling the product to room temperature, adding water to precipitate, reducing the pressure, filtering, washing with anhydrous ethanol for 2-3 times, and drying to obtain graphene oxide/POSS to epoxy resin; and (B) adding 0.5-5 g of graphene oxide/POSS to 10-100 g epoxy resin substrate, reducing pressure, pumping gas out, adding 5-25 g of 4,4'-diaminodiphenyl sulfone curing agent; mixing, pouring the mixture to a steel dim coated by estersil, curing and molding the mixture for 2 hours at 120 degrees C, 2 hours at 160 degrees C, and 2 hours at 180 degrees C.