摘要
分别以1,4-双(叔丁基过氧异丙基)苯(BIBP)和酚醛树脂为交联剂,在不同加工温度下制备以三元乙丙橡胶(EPDM)和聚丙烯(PP)为基体的动态硫化热塑性弹性体(TPV)。利用转矩流变仪测试TPV的硫化特性,利用差示扫描量热仪研究复合体系的非等温结晶行为。结果表明:随着加工温度升高,EPDM/PP复合体系的扭矩最终均有所降低,以BIBP为交联剂复合体系的扭矩下降更加明显。EPDM/PP复合体系在非等温结晶过程中有明显的快速初级结晶和缓慢次级结晶过程,Jeziorny方程可以很好地描述EPDM/PP复合体系的非等温结晶过程。
Dynamic vulcanized thermoplastic elastomer(TPV)based on ethylene-propylene-diene monomer(EPDM)and polypropylene(PP)was prepared at different processing temperatures by using 1,4-bis-(tert-butylperoxyisopropyl)benzene(BIBP)and phenolic resin as crosslinking agent.The vulcanization performance of TPV was measured by the torque rheometer,and non-isothermal crystallization behavior of the composite system was studied by differential scanning calorimetry.The results show that with the increase of EPDM/PP processing temperature,the final torque of the composite system decreases,and the torque of the composite system with BIBP as the crosslinking agent decreases more obviously.In the non-isothermal crystallization process,EPDM/PP composite system has obvious fast primary crystallization and slow secondary crystallization process.Jeziorny equation can well describe the non-isothermal crystallization process of EPDM/PP composite system.
作者
杨智韬
范金花
杨巨鑫
邝清林
Yang Zhitao;Fan Jinhua;Yang Juxin;Kuang Qinglin(Guangdong Provincial Key Laboratory of Advanced Manufacturing Technique and Equipment for Macromolecular, National Engineering Research Center for New Polymer Molding Equipment, South China University of Technology, Key Laboratory of Polymer Processing Engineering of Ministry of Education, Guangzhou, Guangdong, 510640;Foshan Jingzhan Technology Co., Ltd., Foshan, Guangdong, 528247)
出处
《现代塑料加工应用》
CAS
2021年第5期10-13,共4页
Modern Plastics Processing and Applications
基金
国家重点研发项目(2016YFB0302300)。
关键词
三元乙丙橡胶
聚丙烯
交联剂
非等温结晶
ethylene-propylene-diene monomer
polypropylene
crosslinking agent
non-isothermal crystallization
