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Innovative enhancement of gas barrier properties of biodegradable poly(butylene succinate) nanocomposite films by introducing confined crystals

机译:通过引入限制晶体,通过引入可生物降解的聚(丁烯琥珀酸酯)纳米复合膜的气体阻隔性能的创新性

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摘要

In this work, we creatively obtain high gas barrier poly(butylene succinate) (PBS)/clay nanocomposite films by introducing confined crystals taking advantage of the spatial confinement effect which commonly exists in polymer/nanofiller systems. It is found that when the content of clay exceeds a certain amount, the clay can induce some confined crystals around it under the action of the spatial confinement effect. These confined crystals and clay would reconstitute into a kind of new "barrier wall" with a higher aspect ratio and preferable regularity. As a result, the loss of gas barrier ability caused by crystallinity reduction of PBS and exfoliation degree reduction of clays is effectively compensated. This study provides a new potential approach to improve the gas barrier properties of polymers.
机译:在这项工作中,我们通过引入利用通常存在于聚合物/纳米填充系统中的空间限制效果的限制晶体来创造高阻气屏障聚(丁二琥珀酸酯)(PBS)/粘土纳米复合膜。 结果发现,当粘土的含量超过一定量时,粘土可以在空间限制效果的作用下诱导其周围的一些狭窄的晶体。 这些被限制的晶体和粘土将重构成具有更高纵横比和优选规则性的新的“阻挡壁”。 结果,有效地补偿了由PBS的结晶度降低和粘土的剥离度降低引起的阻气能力的丧失。 本研究提供了一种新的潜在方法来改善聚合物的阻气性。

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  • 来源
    《RSC Advances》 |2016年第4期|共7页
  • 作者单位

    Sichuan Univ Coll Polymer Sci &

    Engn Chengdu 610065 Peoples R China;

    Sichuan Univ Coll Polymer Sci &

    Engn Chengdu 610065 Peoples R China;

    Sichuan Univ Coll Polymer Sci &

    Engn Chengdu 610065 Peoples R China;

    Sichuan Univ Coll Chem Engn Chengdu 610065 Peoples R China;

    Sichuan Univ Coll Polymer Sci &

    Engn Chengdu 610065 Peoples R China;

    Sichuan Univ Coll Polymer Sci &

    Engn Chengdu 610065 Peoples R China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 化学;
  • 关键词

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