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投料顺序对动态硫化PP/EPDM性能影响及其机理的研究
引用本文:吴唯,周达飞.投料顺序对动态硫化PP/EPDM性能影响及其机理的研究[J].功能高分子学报,1998,11(3):343-350.
作者姓名:吴唯  周达飞
作者单位:华东理工大学石油化工学院,华东理工大学材料工程学院
摘    要:针对PP降解在PP/EPDM动态硫化中对体系产生的不利影响。考察了四种不同投料顺序对PP/EPDM动态硫化物的冲击韧性,加工流动性,交联程度和断面形貌等宏观和微观性能,并进行了不同EPDM含量的动态硫化和非硫化PP/EPDM的性能比较。结果表明,优化投料顺序能实现对动态硫化体系中化学反应对象和化学反应程度的有效干预。

关 键 词:聚丙烯  乙丙橡胶  硫化  投料顺序  EPDM  共混物

Study on the Influence of Feeding Sequence on the Properfies of Dynamic Vulcanized PP/EPDM and Their Mechnisms
Wu Wei,Pu Weiguang,Qian Qi,Zhao Junzheng,Zhou Dafei.Study on the Influence of Feeding Sequence on the Properfies of Dynamic Vulcanized PP/EPDM and Their Mechnisms[J].Journal of Functional Polymers,1998,11(3):343-350.
Authors:Wu Wei  Pu Weiguang  Qian Qi  Zhao Junzheng  Zhou Dafei
Institution:Wu Wei 1 Pu Weiguang 1 Qian Qi 1 Zhao Junzheng 1 Zhou Dafei 2
Abstract:Considering unfavourable effect of PP degradation on PP/EPDM blend system in dynamic vulcaniction, this paper investigated some macroscopical and microscopical properties of PP/EPDM vulcanizates with four different feeding sequence, such as; process flow ability, crosslinkage, impact toughness and section and compared unvulcanizated samples with vulcanized ones containing different EPDM concent. Result show that optimum feeding sequence can effectively infulence the objects and the degree of reaction. Blending then vulcanizing and making PP/EPDM blend system have a better microscopcal dispersion state before its initiation are the fundamental principle for deciding feeding sequence.
Keywords:Polypropylene    Ethylene-propylene-diene terpolymer  Dynamic vulcanization  Technical property  Feeding sequence
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