▎ 摘　　要

NOVELTY - Nitrile rubber comprises 0.1-5 pts. wt. liquid nitrile rubber modified graphene oxide, 60-90 pts. wt. liquid nitrile rubber modified carbon black, 1-3 pts. wt. antioxidants, 2-6 pts. wt. complex vulcanizing agent and 1-3 pts. wt. accelerator. USE - The nitrile rubber is useful preparing seal ring. ADVANTAGE - The nitrile rubber: has similar structure to the nitrile rubber raw rubber, and good compatibility with nitrile rubber raw rubber, can participate in the vulcanization of nitrile rubber. The seal ring: has high hardness and tensile strength, low compression set and long service life. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are also included for: (1) preparing a nitrile rubber comprising mixing nitrile rubber raw rubber, antioxidant, liquid nitrile rubber modified graphene oxide, liquid nitrile rubber modified carbon black, complex vulcanizing agent and accelerator to obtain nitrile rubber; and (2) sealing ring.