Ethylene-propylene-diene monomer material for low-compression permanent deformation sulfur vulcanized sealing ring

The invention discloses an ethylene-propylene-diene monomer material for a low-compression permanent deformation sulfur vulcanized sealing ring. The ethylene-propylene-diene monomer material comprises the raw materials in parts by weight: 60-100 parts of ethylene-propylene-diene monomer, 70-140 parts of carbon black, 5-15 parts of white carbon black, 10-50 parts of calcined kaolin, 5-10 parts of indirect method zinc oxide, 0.5-2 parts of stearic acid, 0.4-2 parts of sulfur and 2-6 parts of an accelerant, wherein the accelerant is a combination of a comprehensive accelerant LHM and an accelerant M. According to the invention, through optimized design of the formula, the material has low compression set performance and good vegetable oil resistance, and is low in cost and low in odor. 本发明公开了一种低压缩永久变形硫黄硫化密封圈三元乙丙橡胶材料，其原料按重量份包括：三元乙丙橡胶60-100份，炭黑70-140，白炭黑5-15份，煅烧高岭土10-50份，间接法氧化锌5-10份，硬脂酸0.5-2份，硫黄0.4-2份，促进剂2-6份；其中，促进剂为综合促进剂LHM和促进剂M的组合。本发明通过配方优化设计，使得本发明具有较低的压缩永久变形性能，同时具有良好的耐植物油性能，且成本低、气味低。