| 不同牌号三元乙丙橡胶的结构与性能对比 |
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| 引用本文： | 胡海华,黄溪岱,杨玉琼,戎芳仪,周雷,吴宇,李波,赵洪国,何连成.不同牌号三元乙丙橡胶的结构与性能对比[J].合成橡胶工业,2022,0(2):112-116. |
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| 作者姓名： | 胡海华 黄溪岱 杨玉琼 戎芳仪 周雷 吴宇 李波 赵洪国 何连成 |
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| 作者单位： | 1. 中国石油石油化工研究院 兰州化工研究中心/甘肃省合成橡胶工程技术研究中心， 兰州 730060； 2. 同济大学 电子与信息工程学院， 上海 201804 |
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| 摘 要： | 对8个牌号三元乙丙橡胶(EPDM)的微观结构、硫化特性、物理机械性能、耐磨性能及耐老化性能进行了对比.结果表明,EPDM中第3单体亚乙烯基降冰片烯(ENB)质量分数影响了EPDM的硫化速率.8个牌号中EPDM 9950 C的硫化速率最快,EPDM 3722的硫化速率最慢;充油胶EPDM 3666的硫化速率与结构类似的E...
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| 关 键 词： | 三元乙丙橡胶 硫化特性 物理机械性能 耐磨性能 耐老化性能 |
Comparison of structure and properties of different brands of ethylene propylene diene monomer |
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| HU Hai-hua,HUANG Xi-dai,YANG Yu-qiong,RONG Fang-yi,ZHOU Lei,WU Yu,LI Bo,ZHAO Hong-guo,HE Lian-cheng.Comparison of structure and properties of different brands of ethylene propylene diene monomer[J].China Synthetic Rubber Industry,2022,0(2):112-116. |
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| Authors: | HU Hai-hua HUANG Xi-dai YANG Yu-qiong RONG Fang-yi ZHOU Lei WU Yu LI Bo ZHAO Hong-guo HE Lian-cheng |
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| Affiliation: | 1. Lanzhou Pretrochemical Research Center/Gansu Provincial Engineering Technology Research Center of Synthetic Rubber， Petrochemical Research Institute, PetroChina, Lanzhou 730060，China; 2. School of Electronic and Information Engineering, Tongji University, Shanghai 201804，China |
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| Abstract: | The microstructure, curing characteristics, physical and mechanical properties, wear resistance and aging resistance of eight brands of ethylene propylene diene monomer (EPDM) were compared. The results showed that the mass fraction of the third monomer vinylidene norbornene (ENB) in EPDM affected the curing rate of EPDM. Among the 8 brands, the curing rate of EPDM 9950 C was the fastest and that of EPDM 3722 was the slowest. The curing rate of oil filled EPDM 3666 was similar to that of EPDM with similar structure, but the maximum torque and minimum torque of EPDM 3666 vulcanizate decreased significantly. EPDM 6470 and EPDM 5890 F vulcanizates with high mass fraction of vinyl had higher tensile strength, modulus at 300% and Shore A hardness, and better tear resistance, wear resistance and resilience. The compression set of EPDM 9950 C and EPDM 4570 with higher relative molecular weight was the smallest, and the compression set of EPDM 3722 vulcanizate with more than 90% mass fraction of vinyl was the largest. The tensile strength and Shore A hardness of EPDM with small relative molecular weight and oil filled EPDM were lower. The aging resistance of eight brands of EPDM was good, among which EPDM 3722 with the lowest mass fraction of ENB had the best aging resistance. |
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| Keywords: | ethylene propylene diene monomer curing characteristics physical and mechanical property wear resistance aging resistance |
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