中国塑料 ›› 2013, Vol. 27 ›› Issue (09): 76-80 .DOI: 10.19491/j.issn.1001-9278.2013.09.017

• 加工与应用 • 上一篇    下一篇

聚甲基乙撑碳酸酯/乙烯-乙烯醇共聚物/黏土复合材料的流变性能与阻透性能

陈寿 冯健 蒋果 王文广   

  1. 深圳市通产丽星股份有限公司 华南理工大学机械与汽车工程学院
  • 收稿日期:2013-05-15 修回日期:2013-07-06 出版日期:2013-08-26 发布日期:2013-08-26

Rheological Behavior and Barrier Resistance of Poly(propylene carbonate)/Ethylene-Vinyl Alcohol/Clay Nanocomposites

  

  • Received:2013-05-15 Revised:2013-07-06 Online:2013-08-26 Published:2013-08-26

摘要: 采用熔融共混的方法制备了聚甲基乙撑碳酸酯(PPC)/黏土和PPC/乙烯-乙烯醇共聚物(EVOH)/黏土纳米复合材料,测试了复合材料的流变性能和阻氧性能,并对其微观形态进行了分析。结果表明,当基材PPC相对分子质量较高时,PPC/黏土复合材料的复数黏度、储能模量和耗能模量也较高;随着黏土和相容剂马来酸酐接枝聚乙烯(PE-g-MAH)的添加, PPC/EVOH复合材料的复数黏度和模量明显增加,PE-g-MAH的加入使PPC、EVOH和黏土之间的界面作用力增强,改善了PPC与EVOH的相容性,同时提高了PPC/EVOH复合材料的阻氧性能。

关键词: 聚甲基乙撑碳酸酯, 乙烯-乙烯醇共聚物, 黏土, 流变性能, 阻透性能

Abstract: Poly(propylene carbonate)/clay and PPC/ Ethylene-vinyl alcohol (EVOH) /clay nanocom- posites were prepared by melt blending. Rheological behavior, morphology and barrier resistance of PPC nanocomposites were investigated. Results illuminated that composites prepared by higher molecular weight of PPC resin, its complex viscosity, storage modulus and elastic modulus show higher values. With the addition of clay and PE-g-MAH, complex viscosity and modulus of PPC/EVOH composites were increased. The interfacial action among PPC, EVOH and clay was enhanced with the addition PE-g-MAH. By the introduction of clay and PE-g-MAH, both the compatibility and barrier resistance of PPC and EVOH composites increased significantly.

Key words: poly(propylene carbonate), ethylene-vinyl alcohol, clay, rheological behavior, Barrier resistance

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