EPDM/氟橡胶的动态硫化

Dynamic Vulcanization of EPDM/Fluoro Rubber Blend

研究了 Ｅ Ｐ Ｄ Ｍ 硫化体系、硫化剂叔丁基苯酚甲醛树脂（２４０２ 树脂） 用量以及动态硫化时间对 Ｅ Ｐ Ｄ Ｍ／氟橡胶共混物物理性能的影响。结果表明，当２４０２ 树脂用量超过３０ 份时， Ｅ Ｐ Ｄ Ｍ 的硫化程度和动态硫化共混物的力学性能不再变化；动态硫化时间对共混物物理性能的影响不明显。

The influence of the curative type and level for EPDM,and the dynamic vulcanizing time cycle on the physical properties of EPDM/fluoro rubber(FKM) blend was investigated.The results showed that the tert butylphenol formaldehyde resin (2402 resin) was the suitable curative for the blend;the curing state and physical properties of the dynamically vulcanized blend didnt change any more when the level of 2402 resin was beyond 3.0 phr;and the dynamic vulcanizing time cycle had no significant effect on the physical properties of the blend.