配方因素对三元乙丙橡胶胶料硫化特性的影响  

Influence of Formula Factors on Vulcanization Characteristics of EPDM Compound

作　　者：上官绪水[1] 王凡[1] 刘卫东 李斌[1] 刘湘文 SHANGGUAN Xushui;WANG Fan;LIU Weidong;LI Bin;LIU Xiangwen(Hubei Institute of Aerospace Chemical Technology,Xiangyang 441003,China)

机构地区：[1]湖北航天化学技术研究所,湖北襄阳441003

出　　处：《橡胶工业》2022年第3期198-203,共6页China Rubber Industry

摘　　要：研究配方因素(硫化体系、活性剂、补强填料和增塑剂)对三元乙丙橡胶(EPDM)胶料硫化特性的影响。结果表明:硫化体系是决定EPDM胶料硫化特性的主要因素,其中硫黄硫化体系胶料的硫化速度快,综合性能较好;补强填料用量较大,活性剂参与硫化反应,二者对EPDM胶料硫化特性的影响较大,炭黑因表面呈碱性而对硫化有促进作用,白炭黑因表面呈酸性而对硫化有延迟作用;增塑剂不参与交联键的形成,其对EPDM胶料硫化特性的影响不大。The effects of formulation factors(vulcanization system,activator,reinforcing filler and plasticizer)on the vulcanization characteristics of ethylene propylene diene rubber(EPDM)compound were studied.The results showed that the vulcanization system was the main factor determining the vulcanization characteristics of EPDM compound.The compound with sulfur vulcanization system had fast vulcanization speed and good comprehensive performance.Since the amount of the reinforcing filler was large and the active agent participated in the vulcanization reaction,they had a great influence on the vulcanization characteristics.Carbon black could promote the vulcanization due to its alkaline surface,while silica could delay the vulcanization due to its acidic surface.The plasticizer did not participate in the formation of crosslinking bonds and had little effect on the vulcanization characteristics of EPDM compound.

关 键 词：三元乙丙橡胶 硫化体系 活性剂 补强填料 增塑剂 硫化特性 

分 类 号：TQ333.4[化学工程—橡胶工业] TQ330.38