中国塑料

中国塑料 ›› 2008, Vol. 22 ›› Issue (11): 19-22.DOI: 10.19491/j.issn.1001-9278.2008.11.004

• 材料与性能 • 上一篇    下一篇

聚丙烯/乙烯-辛烯-1共聚物共混体系流变性能研究

陈宏亮，李思德，高丽，毛立新   

  1. 北京化工大学材料科学与工程学院北京市新型高分子材料制备与加工重点实验室
  • 出版日期:2008-11-26 发布日期:2022-11-10

Study of Rheological Behavior on Polypropylene/Poly(ethylene-Octene-1)Blends

CHEN Hong-liang，LI Si-de,GAO Li，MAO Li-xin#br#   

  1. College of Material Science and Engineering,Beijing University of Chemical TechnologyThe Key Laboratory ofBeijing City on Preparation and Processing of Novel Polymer MaterialsBeijing 100029,China
  • Online:2008-11-26 Published:2022-11-10

摘要： 采用高级流变扩展系统(ARES)研究了聚丙烯(PP)/乙烯-辛烯共聚物共混体系的流变性能,探讨了乙烯-辛烯共聚物含量和 PP 种类对共混体系储能模量、剪切黏度和零切黏度的影响。实验结果显示,PP 结构和 POE 含量对 PP/POE 共混体系的剪切流变性能有显著影响,随着 POE 含量的增加,PP1/POE 共混体系的储能模量和剪切黏度增加的幅度明显小于 PP2/POE 共混体系,PP1/POE 共混体系和 PP2/POE 共混体系的储能模量和剪切黏度增加幅度较大分别发生在 POE 含量为20%～30%和10%～20%,即共混体系发生"脆—韧"转变阶段。PP/POE 共混体系中存在界面滑移现象,且 PP 和 POE 的界面相容性对界面滑移现象影响较大,其中 PP1/POE 的界面滑移比PP2/POE 的界面滑移更加明显。

关键词: 乙烯辛烯-1, 共聚物, 聚丙烯, 流变性能, 共混

Abstract: The rheological behavior ofpolypropylene/poly(ethylene-Octene-1)blends were investigated by means of Advanced Rheology Expansion System(ARES).The results of dynamic rheological tests indicated that the structure of PPand content of POE have obvious effect on the shear rheological bebay-ior of PP/POE blends.With the increase of POE content,the increase degree of the storage modulus and the shear viscosity of PP1/POE blends are less than those ofPP2/POEblendsThe above two blend systems showed greater increase in their storage modulus and the shear viscosity at POE content of twenty to thirty percent and ten to twenty percent respectively when brittle-ductile transition happened. Interfacial slip existed between PP and POE, which was greatly influenced by the compatibility of PF and POE, and the interfacial slip between PP1 and POE was more obvious than that between PP2 and POE.

Key words: poly(ethylene-Octene-1), polypropylene, rheological behavior, blending

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