耐高温老化EPDM胶料的开发  

Development of EPDM with aging resistance at high temperature

作　　者：陈龙[1] CHEN Long(Key Lab of Rubber-plastic and Engineering,Ministry of Education,Qingdao University of Science and Technology,Qingdao 266042,China)

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,山东青岛266042

出　　处：《弹性体》2020年第6期7-11,共5页China Elastomerics

基　　金：国家自然科学基金项目(51703114)。

摘　　要：研究了防老剂种类、橡胶并用及第三单体种类对三元乙丙(EPDM)硫化胶高温老化性能的影响。结果表明,反应型防老剂N-4(苯胺基苯基)甲基丙烯酰胺(NAPM)在高温长时间老化时具有更好的防老化效果;与二元乙丙橡胶(EPM)和硅橡胶(VMQ)并用可以明显改善EPDM的高温耐老化性能和压缩永久变形;与亚乙烯基降冰片烯(ENB)型EPDM相比,乙烯基降冰片烯(VNB)型EPDM具有更快的硫化速度和更高的硫化程度,硫化胶也表现出更好的耐高温老化性能和更低的压缩永久变形。Influence of anti-aging agent type,blending with EPM and silicone rubber(MVQ),and variety of diene on aging resistance of EPDM at high temperature was investigated.The results showed that reactive anti-aging agent NAPM exhibited better aging resistance at higher temperature for a long time,and lower compression set.When blended with 20 phr saturated rubber EPM and MVQ,EPDM also showed better anti-aging properties and lower compression set.Compared with ENB-EPDM,VNB-EPDM cured faster,and formed more crosslink and the vulcanizates had better ageing resistance and lower compression set.

关 键 词：乙丙橡胶 耐高温 耐老化 压缩永久变形 

分 类 号：TQ333.4[化学工程—橡胶工业]