聚乙烯醇/蒙脱土纳米复合薄膜的制备与性能研究  

Preparation and properties of montmorillonoid/polyvinyl alcohol nanocomposite films

作　　者：张勇[1] 杨福馨[1] 户帅锋 张玉亭[1] 

机构地区：[1]上海海洋大学食品学院,上海201306

出　　处：《功能材料》2015年第11期11144-11147,11152,共5页Journal of Functional Materials

基　　金：国家高技术研究发展计划(863计划)资助项目(2012AA0992301);上海市科委工程中心建设资助项目(11DZ2280300);上海市助推计划资助项目(2013CL1312HY)

摘　　要：以甘油作为增塑剂,经溶液流延法加工制备出PVA/MMT纳米复合薄膜,研究了纳米蒙脱土(MMT)对聚乙烯醇(PVA)的改性作用。通过对薄膜的结构表征、力学、光学、吸水性、热稳定性等性能研究表明,DK4型号MMT与PVA分子有着很好的相容性,添加了不同比例的MMT均不同程度提高了薄膜的抗拉强度、热稳定性,降低了薄膜的断裂伸长率、吸水性、水蒸气透过系数、透光率,其中添加了1%DK4型MMT的PVA薄膜有着最好的改性效果。To study the modified effects of montmorillonoid(MMT) on polyvinyl alcohol(PVA).This study used glycerol as a plasticizer to prepared PVA/MMT nanocomposite films through a solution casting method.By studying the properties of the flims,such as characterization,mechanics,optics,water absorption,thermal stability and so on showed that the DK4 model of MMT had a good consistency with PVA.And different proportions of MMT were added to the films increased its determination of tensile strength and thermal stability,but reduced its elongation at break,water absorption,water vapor permeability,light transmittance.The experiment results showed that the PVA films added with 1% MMT had good modified effects.

关 键 词：聚乙烯醇 蒙脱土 溶液流延法 纳米复合薄膜 

分 类 号：TB484.3[一般工业技术—包装工程] TB487