种汽车回油管EVM胶料及其制备方法

本发明涉及种汽车回油管EVM胶料，所述的EVM胶料由以下重量份的材料制成，EVM700HV生胶40份，EVM500HV生胶60份，氧化镁1～3份，氧化钙1～3份，硬脂酸1～2份，碳黑50～70份，填充剂30～50份，加工油8～15份，防老剂2～6份，增粘树脂3～5份，过氧化物硫化剂5～8份，硫化助剂3～4份；本发明还提供上述EVM胶料的制备方法。本发明的优点在于：本发明EVM胶料采用EVM700HV胶料和EVM500HV胶料并用，再配合定的制备方法，制得的胶料具有优异的耐高温、耐油和耐臭氧性能。 The invention relates to EVM rubber for an automobile oil return pipe. The EVM rubber is prepared from materials in parts by weight as follows: 40 parts of EVM700HV raw rubber, 60 parts of EVM500HV raw rubber, 1-3 parts of magnesium oxide, 1-3 parts of calcium oxide, 1-2 parts of stearic acid, 50-70 parts of carbon black, 30-50 parts of filler, 8-15 parts of processing oil, 2-6 parts of an anti-aging agent, 3-5 parts of tackifying resin, 5-8 parts of a peroxide vulcanizing agent and 3-4 parts of a vulcanizing agent. The invention further provides a preparation method of the EVM rubber. The EVM rubber and the preparation method have the advantages as follows: the EVM rubber adopts both the EVM700HV rubber and the EVM500HV rubber, the certain preparation method is