化工进展 ›› 2017, Vol. 36 ›› Issue (07): 2540-2546.DOI: 10.16085/j.issn.1000-6613.2016-2227

• 材料科学与技术 • 上一篇    下一篇

改善聚乙烯醇薄膜耐水性的研究进展

魏书静, 黄赟, 查刘生   

  1. 东华大学纤维材料改性国家重点纤维实验室, 上海 201620
  • 收稿日期:2016-12-02 修回日期:2017-01-25 出版日期:2017-07-05 发布日期:2017-07-05
  • 通讯作者: 查刘生,教授,研究方向为聚乙烯醇膜的改性。
  • 作者简介:魏书静(1988-),女,硕士研究生,研究方向为改善聚乙烯醇膜的耐水性。E-mail:15201870595@163.com。
  • 基金资助:
    国家自然科学基金面上项目(51373030)。

Research progress on improving water-resistance of poly (vinyl alcohol)film

WEI Shujing, HUANG Yun, ZHA Liusheng   

  1. State Key Laboratory for Modification of Chemical Fibers and Polymer Material, Donghua University, Shanghai 201620, China
  • Received:2016-12-02 Revised:2017-01-25 Online:2017-07-05 Published:2017-07-05

摘要: 聚乙烯醇(PVA)薄膜存在易吸水发生溶胀而出现气体阻隔性和力学性能下降的缺点,不适合用于气体阻隔性和力学性能要求高的场合,因此需要改善它的耐水性。本文首先介绍了评价PVA薄膜耐水性的4种方法和PVA树脂的醇解度与分子量对薄膜耐水性的影响,然后重点述评了改善PVA薄膜耐水性的4种方法,即化学交联法、物理交联法、无机纳米材料复合法和聚合物共混法的机理和研究进展,比较了它们的优缺点。论文还介绍了耐水性PVA薄膜在水的分离纯化、包装、偏振片和生物医学等领域的应用,最后对其未来发展方向做了展望,其中研究新的绿色环保的改性方法,进一步提高PVA薄膜的耐水性,拓展其应用范围是今后值得关注的研究课题。

关键词: 聚乙烯醇, 膜, 耐水性, 改性, 应用

Abstract: Poly (vinyl alcohol)(PVA) film has the disadvantage of absorbing water easily to swell which then weakens its gas barrier and mechanical properties,so it is not suitable for the applications requiring high gas barrier property and mechanical properties and its water-resistance needs to be improved.In this article,four methods for evaluating the water resistance of PVA film and the influence of alcoholysis degree and molecular weight of PVA resin on its water resistance are introduced firstly.Then,the mechanisms and research progress of four approaches for improving PVA film's water resistance (chemical crosslinking,physical crosslinking,inorganic nanomaterial composite and polymer blending methods) are reviewed intensively,and their advantages and drawbacks are compared.The applications of water resistant PVA film in separation and purification,package,polaroid and biomedicine are introduced.Finally,the outlook of water resistant PVA film is given.The development of novel green and environment-friendly method to improve its water resistance further and the extension of its application range are the research subjects deserving more attention.

Key words: poly (vinyl alcohol), film, water-resistance, modification, application

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