文档介绍：: .
精细化工
VA 化学交联，即 PVA 能进行多元醇的酯化、醚化、缩醛化等化学反
应；另一种是制备 PVA-纳米复合涂料，即 PVA 与纳米层状材料如蒙脱土以及氧化石墨烯等复合。分别从 PVA 的阻隔
性及其影响因素、化学交联 PVA 涂料以及 PVA-纳米复合涂料的最新研究进展进行了综述，分析了改性 PVA 涂料面临
的问题，展望其未来研究方向。
关键词 食品软包装；高阻隔；PVA 涂布液；化学交联；复合涂料
中图分类号 文献标志码 A DOI: .20211308
Research progress on transparent and high barrier PVA coatings for flexible food
packaging
ZHU Qingmei1,2,3, CHEN Xiuqiong1,2, LI Dongze1,2, LU Jinyu1,2, YAN Huiqiong1,2,3, LIN Qiang1,2,3
（1. Key Laboratory of Water Pollution Treatment and Resource Reuse of Hainan Province, Haikou 571158, Hainan, China; 2. Key Laboratory of
Natural Polymer Functional Material of Haikou City, Haikou 571158, Hainan, China; 3. Key Laboratory of Tropical Medicinal Resource Chemistry of
Ministry of Education, Hainan Normal University, Haikou 571158, Hainan, China）
Abstract Poly(vinyl alcohol) (PVA) has been widely used as transparent, recyclable, and environmental-friendly high-
barrier flexible food packaging materials due to its good transparency, film-forming ability, and excellent oxygen and organic
solvent barrier properties. However, Further application of PVA coating was restricted by its low humidity sensitivity and
high water vapor permeability, which could be improved by PVA cross-linking via esterification, etherification and
acetalization, or PVA composition with nano layered materials such as montmorillonite and graphene oxide composite. The
barrier properties and its influencing factors, PVA modification via chemical cross-linking and nano-composition were
summarized and reviews. Finally, the existing challenges and future directions of PVA modification were discussed.
Key words food flexible packaging;