【摘要】 通过对不同硫化体系三元乙丙橡胶(EPDM)硫化胶的老化试验,揭示了EPDM老化过程及其结构与性能的关系,考察了硫化体系对 EPDM 耐老化性能的影响。EPDM 硫化胶在 150—160℃的热空气中使用时需选用过氧化物硫化体系;硫化活性助剂可改善过氧化物EPDM 硫化胶的物理机械性能和耐热氧老化性能。更多还原

【Abstract】 The aging process and the relationship between the structure and properties of domestic ethylene propylene diene monomer (EPDM)were studied by thermooxidation of the vulcanizates of EPDM vulcanized with different curing agent systems.The effect of different curing systems on the aging resistance of EPDM vulcanizates was investigated. The results show that the peroxide curing system should be used for EPDM products to beve used within the temperature range of 150-160℃,and the addition of active curing additives can improve the mechanical properties and thermooxidation resistances of peroxide vulcanized EPDM rubber vulcanizates.更多还原