▎ 摘　　要

NOVELTY - Fluororubber composition comprises 100 pts.wt. fluororubber, 10-30 pts.wt.polyimide modified graphene, 1-10 pts.wt.carbon black, 0.5-3 pts.wt. accelerator, 1-6 pts.wt.crosslinking agent,0-6 pts.wt. acid absorbing agent, 0.1-2 pts.wt.release agent. USE - Fluorine rubber composition used in semiconductor seals. ADVANTAGE - The fluorine rubber composition is added with less carbon black as reinforcing agent, but also can obtain excellent mechanical property. The polyimide modified graphene not only has the elastic function of the polymer resin but also has the reinforcing function of graphene sheet structure. When the modified poly-imide graphene is added to the fluorine-rubber, it is used as an excellent reinforcing filler, it can replace carbon black, so as to obviously improve the strength of the obtained rubber composition, stretching performance, and also overcomes the defect of poor anti-tearing performance of the rubber, and obtaining excellent anti-compression permanent deformation performance at high temperature. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for preparation method of fluororubber composition, involves adding fluororubber to internal mixer and mix evenly, then add polyimide modified graphene, carbon black, acid absorbing agent and mold release agent and mix evenly, then transfer the obtained mixture to the open mixer, and then adding accelerator and cross-linking agent are mixed evenly, and mixed rubber is obtained after thinning out the sheet; The mixed rubber is preformed and placed in a forming mold for one-stage vulcanization, vulcanization at 160-180 °C for 5-15 minutes, and second-stage vulcanization at 210-230 °C for 15-20 hours to obtain the fluororubber combination.