| abstract |
The invention provides a fluororubber composition, a preparation method and application thereof. The fluororubber composition comprises the following components in parts by weight: 80-100 parts by weight of fluororubber, 15-20 parts by weight of carbon black, and 4 parts by weight of calcium hydroxide. ~6 parts by weight, 1-3 parts by weight of magnesium oxide, 0.5-1 part by weight of mold release agent, 1.5-3.5 parts by weight of lubricant, 1-2 parts by weight of vulcanizing agent, and 0.5-1 part by weight of vulcanization accelerator. Through the screening and synergistic compounding of each component, the fluororubber composition gives it lower volume wear and friction coefficient, improves the stability and service life of the fluororubber composition, and is used as a sealing material for automobile oil seals. , Especially for high-speed oil seals with rotating linear speed ≥25mm/s, it can effectively reduce the wear of the oil seal lip and reduce the temperature of the lip, and fully meet the use requirements of rubber materials in high-speed oil seals. |