▎ 摘　　要

NOVELTY - A rubber sealing ring composition comprises 20-40 pts. wt. silicone rubber methacrylate, 80-120 pts. wt. polyphenylene ether, 30-60 pts. wt. triallyl isomeric cyanurate, 20-50 pts. wt. phthalic anhydride polyester polyol, 10-30 pts. wt. diethylenetriamine, 6-12 pts. wt. modified graphene oxide, 2-8 pts. wt. vulcanizing agent, 2-6 pts. wt. aluminum stearate, 4-8 pts. wt. aluminum hydroxide, 2-5 pts. wt. aluminum tripolyphosphate, 1-6 pts. wt. zinc stearate, 2-8 pts. wt. zinc oxide, 5-15 pts. wt. antimony trioxide, 2-6 pts. wt. triallyl isocyanurate, 3-9 pts. wt. toluene diisocyanate, 2-6 pts. wt. quartz powder, 1-4 pts. wt. silica, 2-5 pts. wt. pentaerythritol stearate and 3-6 pts. wt. diphenylsilyl glycol. USE - Rubber sealing ring composition used for ball valve (claimed). ADVANTAGE - The product has improved mechanical property.