蛭石改性聚乙烯醇包装薄膜的制备及性能研究  

Preparation and Properties of Vermiculite Modified Polyvinyl Alcohol Packaging Film

作　　者：刘辉[1,2] 陈蕴智 李东立[2] 付亚波[2] 许文才[2] LIU Hui;CHEN Yun-zhi;LI Dong-li;FU Ya-bo;XU Wen-cai(School of Light Industry Science and Engineering,Tianjin University of Science and Technology,Tianjin 300457,China;School of Printing and Packaging Engineering,Beijing Institute of Graphic Communication,Beijing 102600,China)

机构地区：[1]天津科技大学轻工科学与工程学院,天津300457 [2]北京印刷学院印刷与包装工程学院,北京102600

出　　处：《数字印刷》2022年第5期92-98,共7页Digital Printing

基　　金：2021年校内学科建设——高分子物理与化学课程建设(No.21090121027)。

摘　　要：为提高聚乙烯醇(PVA)薄膜的性能,本研究通过共混法制备了蛭石(VMT)-PVA复合薄膜,并对复合薄膜的结构及力学性能、阻隔性能、透明度和耐水性能进行测试。结果表明,VMT在PVA薄膜中分散良好,形成了氢键作用,使得复合薄膜的结晶度和热稳定性能提高。同时,VMT的加入使得复合薄膜的力学性能、阻隔性能和耐水性能明显提升,其中2%-PVA复合薄膜的性能最好。In order to improve the properties of polyvinyl alcohol(PVA) films, vermiculite(VMT)/PVA composite films were prepared with the blending method in this study. Then the structure, mechanical properties, barrier properties, transparency and water resistance of the composite films were tested. The results showed that VMT is well dispersed in PVA film, and hydrogen bonding is formed, which could improve the crystallinity and thermal stability of the composite film. At the same time, the addition of VMT significantly improves the mechanical properties,barrier properties and water resistance of the composite film. Among them, 2%-PVA composite film has the best performance.

关 键 词：聚乙烯醇 蛭石 复合材料 包装材料 

分 类 号：TQ325.9[化学工程—合成树脂塑料工业] TB383.2[一般工业技术—材料科学与工程]