▎ 摘　　要

NOVELTY - High-efficiency eco-friendly composite sealant comprises 60-70 pts. wt. methyl silicone resin, 14-16 pts. wt. nano silica powder, 7-9 pts. wt. polyvinylpyrrolidone, 3-5 pts. wt. fatty alcohol polyoxyethylene ether, 5-7 pts. wt. sodium benzoate, 7-9 pts. wt. graphene, 4-6 pts. wt. defoamer, 3-5 pts. wt. coupling agent, 10-12 pts. wt. sodium nitrite, 1-3 pts. wt. sodium lauryl hydride, 2-4 pts. wt. potassium fluorosilicate, and 40-50 pts. wt. water. USE - High-efficiency eco-friendly composite sealant. ADVANTAGE - The high-efficiency eco-friendly composite sealant ensures greatly increased silicon content and heat resistance, is suitable for use in higher temperature environments, and improved integrity and compactness of sealing film and corrosion resistance. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method for preparing the high-efficiency eco-friendly composite sealant, which involves heating water at 50-60 degrees C temperature, adding methyl silicone resin and nano silica powder, stirring for 30-40 minutes, adding fatty alcohol polyoxyethylene ether, polyvinylpyrrolidone, sodium benzoate, defoaming agent, coupling agent and sodium lauryl sulfate, stirring for 35-45 minutes, holding for 1-2 hours, adding graphene, sodium nitrite and potassium fluorosilicate, and stirring for 30-40 minutes to obtain the product.