软化体系对EPDM/POE共混胶耐老化及耐高温性能的影响  

Effect of softening system on the aging and high temperature resistance of EPDM/POE blended rubber

作　　者：公维颖 张勇 邓涛[1] Gong Weiying;Zhang Yong;Deng Tao(Qingdao University of Science and Technology,Qingdao 266042,Shandong,China;Luohe Litong Hydraulic Technology Co.LTD.,Luohe 462000,Henan,China)

机构地区：[1]青岛科技大学高分子科学与工程学院,山东青岛266042 [2]漯河利通液压科技股份有限公司,河南漯河462000

出　　处：《橡塑技术与装备》2024年第2期62-66,共5页China Rubber/Plastics Technology and Equipment

摘　　要：通过改变三元乙丙橡胶(EPDM)/聚烯烃弹性体(POE)共混胶配方的软化体系石蜡油2280和低分子量聚异丁烯(PIB)的并用量,研究其对EPDM/POE共混胶热氧老化前后常温、高温拉伸力学行为的影响。研究表明,随着聚异丁烯并用量的增加,可以提高共混胶的交联程度;热氧老化前,在常温、高温拉伸下,共混胶的模量、拉伸强度升高,显著提高共混胶的耐高温性能;热氧老化后,共混胶的常温、高温下力学性能略有改善。The influence of the combined dosage of paraffin oil 2280 and low molecular weight polyisobutylene(PIB)on the tensile mechanical behavior of EPDM/POE blended rubber before and after thermal oxidative aging at room temperature and high temperature was studied by changing the formulation of the softening system of EPDM/POE blended rubber.Research has shown that as the amount of polyisobutylene increases,the degree of crosslinking of the blended rubber can be improved;Before thermal oxidative aging,the modulus and tensile strength of the blended rubber increase at room temperature and high temperature,and the high-temperature resistance of the blended rubber is significantly improved;After thermal oxidative aging,the mechanical properties of the blended rubber slightly improved at room temperature and high temperature.

关 键 词：乙丙橡胶 聚烯烃弹性体 石蜡油2280 聚异丁烯 

分 类 号：TQ330.7[化学工程—橡胶工业]