石蜡油对三元乙丙橡胶硫化特性和动态性能的影响  

Effects of paraffinic oil on peroxide curing and dynamic properties of ethylene-propylene-diene monomer

作　　者：徐正伟[1] 李蕾[1] 徐灵明 邱桂学[1] 

机构地区：[1]青岛科技大学橡塑材料与工程教育部重点实验室/山东省橡塑材料与工程重点实验室,山东青岛266042

出　　处：《合成橡胶工业》2015年第4期318-321,共4页China Synthetic Rubber Industry

摘　　要：考察了石蜡油对三元乙丙橡胶(EPDM)硫化特性及动态性能的影响。无转子硫化仪的测试结果表明,充油EPDM较未充油者的硫化特性均有一些变化,其中最大和最小转矩以及门尼黏度不同程度地减小,而焦烧时间和正硫化时间有所延长;EPDM热硫化阶段是一级反应过程,硫化反应的活化能随着体系中石蜡油用量的增加而略有减小。采用橡胶加工分析仪对EPDM混炼胶进行的频率扫描结果表明,随着石蜡油用量的增加,充油EPDM呈现出储能模量和损耗模量减小而损耗因子增大的规律。Effects of paraffinic oil on peroxide curing and dynamic properties of ethylene-propylenediene monomer （EPDM） were investigated. The resuits measured by moving die rheometer showed that minimum torque, maximum torque and Mooney viscosity all reduced with increasing amounts of oil, while scorch time and cure time extended. The reaction in thermal curing stage of EPDM was of first order. Activation energy of thermal cure of EPDM decreased slightly with the increase of paraffinic oil. The results of frequency scanning of EPDM compound measured by rubber, process analyzer indicated that modulus and loss modulus both decreased, while loss factor increased with inhancing content of paraffin oil.

关 键 词：三元乙丙橡胶 石蜡油 硫化特性 硫化动力学参数 动态性能 

分 类 号：TQ333.4[化学工程—橡胶工业]