▎ 摘　　要

NOVELTY - A graphene oxide modified organosilicon antifoaming agent comprises 5-12% graphene oxide-modified silicone oil, 10-25% dimethyl silicone oil, 2-5% silicon dioxide, 7-10% polyether, 5-7% emulsifying agent, 0.05-0.15% catalyst, 1-4% stabilizer, 50-60% deionized water, 3-5% fixed high viscosity silicon paste, 2-6% low viscosity silicon paste and 3-10% white carbon black. USE - Graphene oxide modified organosilicon antifoaming agent. ADVANTAGE - The graphene oxide modified organosilicon antifoaming agent has high efficiency, temperature resistance, acid and alkali resistance, hydrophilicity, no pollution, and can be prepared in simple, easy and rapid manner. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for a method for preparing graphene oxide modified organosilicon antifoaming agent, which involves adding 1000 mPa.s dimethyl silicone oil and silicon dioxide and appropriate amount of auxiliary agent in a beaker with a mass ratio of 4: 1, heating and stirring well, putting it into an electric constant temperature drying box, and drying at a constant temperature for 3 hours to obtain high-viscosity silicon paste, adding 500 mPa.s dimethyl silicone oil, 350 mPa..s dimethyl silicone oil and fumed silica in a beaker at a mass ratio of 2: 2.1, heating and stirring well, and putting in an electric constant temperature drying box at a constant temperature for 2.5 hours to obtain low-viscosity silicon paste, adding a certain amount of silicon paste, graphene oxide-modified silicone oil and emulsifier into the beaker, where the emulsifier is in the oil phase, controlling the temperature at 70-80 degrees C, and dissolving an emulsifier completely while heating, dispersing white carbon black in a dimethyl silicone oil aqueous solution, adding a small amount of silica and deionized water, stirring while heating, and keeping the temperature at 60-80 degrees C for 4 hours, heating the remaining deionized water, stabilizer and catalyst to a certain temperature, shear emulsifying with a high-shear emulsifier, and naturally cooling to room temperature to obtain an antifoaming agent, and performing a stability test of the defoamer in a high-speed centrifuge.