炭黑和CZ份数对三元乙丙橡胶力学性能的影响  

Effect of carbon black and CZ portions on the mechanical properties of EPDM

作　　者：田元 孙琦 吕晓仁[1] 马驰 Tian Yuan;Sun Qi;Lv Xiaoren;Ma Chi(Shenyang University of Technology, Shenyang 110870, Liaoning, China;Shenyang University of Chemical Engineering, Shenyang 110142, Liaoning, 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：《橡塑技术与装备》2018年第2期39-43,共5页China Rubber/Plastics Technology and Equipment

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

摘　　要：采用力学拉伸试验机和自制高温硬度测量装置分别测试了不同炭黑与CZ份数下三元乙丙橡胶的力学行为和硬度。结果表明:随着炭黑份数的增加,三元乙丙橡胶硬度和抗拉强度增加,断裂伸长率降低。随着促进剂CZ份数的增加,三元乙丙橡胶的硫化时间明显缩短,硬度变化不大,抗拉强度先增加后降低,而断裂伸长率逐渐下降。三元乙丙橡胶的硬度在150℃以下基本不变,150℃以上时,硬度急剧下降。当温度升到210℃时,橡胶呈现黏流态。Mechanical tensile test machine and self-made high temperature hardness measuring device are used to test the mechanical behavior and hardness of EPDM with different carbon black and CZ portions. The results show that, with the increase of carbon black portions, the hardness and tensile strength of EPDM increase, and the elongation at break decreases. With the increase of the accelerator CZ portions, the curing time of EPDM is obviously shortened, the hardness changes little, the tensile strength increases frst and then decreases, while the elongation at break gradually decreases. The hardness of EPDM is basically unchanged under 150℃ , and drops sharply above 150℃ . When the temperature rises to 210℃ , the rubber compound presents a viscous state.

关 键 词：三元乙丙橡胶 炭黑 CZ 力学性能 硬度 

分 类 号：TQ330.381[化学工程—橡胶工业]