聚乙烯醇改性及降解研究进展

The Progress of Research on PVA’s Modification and Bio-degrading

聚乙烯醇是水溶性高分子树脂,由于其相对于其他聚乙烯类高分子树脂而言具有一定的可生物降解性,对于其生物降解的过程和机理的研究已越来越受到人们的关注。本文从材料学的改性技术和环境学的相容性两个角度综述了国内外聚乙烯醇生物降解的研究概况。通过聚乙烯醇溶液及薄膜的降解过程的介绍,指出化学改性和微生物降解的结合将是今后处理含聚乙烯醇类废水及固体废弃物的主要方法。

Polyvinyl Alcohol （PVA） is a water-soluble high-molecule resin, as it provides better bio-degradability than other polyvinyl high-molecule resins, the research on its degrading process and mechanism has drawn higher and higher concern. This article summarizes the progress of research on PVA bio-degrading both in home and abroad from the prospective of materials and environment science. Through the explanation on the degrading process of PVA solution and membrane, it points out that, the combination of chemical modification and microbio-degrading will be the primary approach to treat waste liquid and solid containing PVA.