| 动态硫化EPDM／PP热塑性弹性体的流变性能 |
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| 引用本文： | 耿海萍,朱玉俊.动态硫化EPDM／PP热塑性弹性体的流变性能[J].合成橡胶工业,1995,18(6):354-356. |
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| 作者姓名： | 耿海萍 朱玉俊 |
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| 作者单位： | 北京化工大学高分子系 |
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| 摘 要： | 研究了共混工艺条件，橡塑比，橡胶相交联速率及交联密度，ＰＰ的熔体流动指数对ＥＰＤＭ／ＰＰ共混物流变性能的影响。结果表明，当降低ＥＰＤＭ含量，减小ＥＰＤＭ相粒径时，共混物的流动性增强。共混物发生熔体破裂是由于ＥＰＤＭ和ＰＰ相在挤出后两相大分子的弛豫行为不同所致。提高ＰＰ含量，降低了ＥＰＤＭ相粒径，同时ＥＰＤＭ分散相具有适宜的交联密度时，可以得到挤出表面光滑的共混物。
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| 关 键 词： | 聚丙烯 热塑性弹性体 动态硫化 流变性 EPDM |
RHEOLOGICAL PROPERTIES OF DYNAMIC VULCANIZED EPDM/PP THERMOPLASTIC VULCANIZATE |
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| Geng Haiping,Zhu Yujun and Wu Shemao.RHEOLOGICAL PROPERTIES OF DYNAMIC VULCANIZED EPDM/PP THERMOPLASTIC VULCANIZATE[J].China Synthetic Rubber Industry,1995,18(6):354-356. |
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| Authors: | Geng Haiping Zhu Yujun and Wu Shemao |
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| Abstract: | The effects of mixing conditions,ratio of rubber to plastics,crosslinking rate and density of rubber phase and melt index of PP on the rheological propertics of EPDM/PP thermoplastic vulcanizate were investigated. The results showed that the mobility of vulcanizate increased when the content of EPDM and the particle diameter in rubber phase decreased. The blend with smooth surface was obtained by increasing the content of PP,decreasing the particle diameter in rubber phase. |
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| Keywords: | ethylene propylene dienemonomer isotactic polypropylene blending thermoplastic elastomer dynamic vulcanization rheological property |
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