过氧化二异丙苯用量对三元乙丙橡胶性能的影响  

Effect of Dicumyl Peroxide Content on Properties of EPDM

作　　者：戴红峰[1] 吕晓仁[1] 马驰 DAI Hongfeng;LYU Xiaoren;MA Chi(Shenyang University of Technology,Shenyang 110870,China;Shenyang University of Chemical Technology,Shenyang 110142,China)

机构地区：[1]沈阳工业大学机械工程学院,辽宁沈阳110870 [2]沈阳化工大学材料科学与工程学院,辽宁沈阳110142

出　　处：《橡胶工业》2018年第12期1375-1378,共4页China Rubber Industry

基　　金：国家自然科学基金资助项目(50875178);辽宁省百千万人才工程培养经费资助项目[2015(48)];辽宁省高等学校杰出青年学者成长计划项目(LJQ2015080);沈阳市科学技术计划项目(17-31-6-00)

摘　　要：通过机械共混法制备三元乙丙橡胶(EPDM)胶料,研究过氧化二异丙苯(DCP)用量对EPDM胶料硫化特性、物理性能和润湿性能的影响。结果表明:随着DCP用量增大,混炼胶的硫化时间呈缩短趋势;硫化胶的硬度、拉伸强度、拉断伸长率和润湿角呈先增大后减小趋势;当DCP用量为3份时,硫化胶的综合物理性能最佳,与水的亲和力最弱。The ethylene-propylene-diene monomer(EPDM) compound was prepared by mechanical blending,and the effect of dicumyl peroxide(DCP) content on the vulcanization characteristics,physical properties and wettability of EPDM compound was investigated. The results showed that,with the increase of DCP content,the curing time of the compound was gradually shortened,and the hardness,tensile strength,elongation at break and wetting angle of the vulcanizate increased at first and then decreased. When the content of DCP was 3 phr,the comprehensive physical properties of the vulcanizate were the best,and the affinity between water and the vulcanizate was the weakest.

关 键 词：三元乙丙橡胶 过氧化二异丙苯 硫化特性 物理性能 润湿性能 

分 类 号：TQ333.4[化学工程—橡胶工业] TQ330.38