中国塑料 ›› 2010, Vol. 24 ›› Issue (05): 63-67 .DOI: 10.19491/j.issn.1001-9278.2010.05.014

• 加工与应用 • 上一篇    下一篇

PE-LLD/SEBS-g-MAH/POE-g-MAH共混体系流变性能的研究

罗永春 仲豪 熊煦 龚方红   

  1. 江苏工业学院 江苏工业学院
  • 收稿日期:2010-01-22 修回日期:2010-03-08 出版日期:2010-05-26 发布日期:2010-05-26

Rheological Behavior of PE-LLD/SEBS-g-MAH/POE-g-MAH Blends

LUO Yongchun Hao ZHONG Xu XIONG Fanghong GONG   

  • Received:2010-01-22 Revised:2010-03-08 Online:2010-05-26 Published:2010-05-26
  • Contact: Fanghong GONG

摘要: 在双螺杆挤出机中用马来酸酐(MAH)分别对乙烯-辛烯共聚物(POE)、氢化苯乙烯-丁二烯-苯乙烯嵌段共聚物(SEBS)进行熔融接枝,用密炼机对线形低密度聚乙烯(PE-LLD)、POE-g-MAH和SEBS-g-MAH进行熔融共混,用毛细管流变仪对PE-LLD/SEBS-g-MAH二元体系和PE-LLD/POE-g-MAH/SEBS-g-MAH三元体系的流变行为进行研究。结果表明,LLDPE/POE-g-MAH/SEBS-g-MAH共混体系是典型的假塑性流体;体系的表观黏度随着SEBS-g-MAH组分含量的增加而增加,POE-g-MAH对共混体系表观黏度的影响较小。

关键词: 线形低密度聚乙烯, 马来酸酐接枝乙烯-辛烯共聚物, 马来酸酐接枝氢化苯乙烯-丁二烯-苯乙烯嵌段共聚物, 共混体系, 流变性能

Abstract: POE and SEBS was melt grafted with MAH in a twin-screw extruder separately, and introduced into PE-LLD forming binary blends PE-LLD/SEBS-g-MAH and ternary blends PE-LLD/POE-g-MAH/SEBS-g-MAH in a internal mixer. The rheological property of the blends was studied using a capillary rheometer. The ternary blend was found a typical pseudo-plastic melt. The apparent viscosity increased with increasing content of SEBS-g-MAH, and the influence of POE-g-MAH on the apparent viscosity of the blends was negligible.

Key words: linear low-density polyethylene, ethylene-octene copolymer grafted maleic anhydride, hydrogenated styrene-butadiene-styrene copolymer grafted maleic anhydride, blending system, rheological behavior

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