纳米ZnO-PLLA/聚乳酸复合薄膜的性能研究  

Study on Properties of Nano-ZnO-PLLA/PLLA Composite Films

作　　者：袁明伟[1,2] 曹剑飞 鲁越 陈栋梁[1] 熊成东 YUAN Ming-wei1＇2, CAO Jian-fei1.2, LU Yue1 .2, CHEN Dong-liang , XIONG Cheng-dongl(1. Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences, Chengdu 610041, China; 2. University of Chinese Academy of Sciences, Beijing 100049, Chin)

机构地区：[1]中国科学院成都有机化学研究所,四川成都610041 [2]中国科学院大学,北京100049

出　　处：《塑料工业》2018年第3期124-127,共4页China Plastics Industry

基　　金：云南民族大学民族药资源化学国家民委-教育部重点实验室开放课题(MZY1507)

摘　　要：通过聚乳酸(PLLA)表面修饰的纳米氧化锌材料与聚乳酸(PLLA)共混制备出纳米聚乳酸复合膜,采用扫描电镜(SEM)、DSC对复合材料进行表征,并将该膜与单纯的聚乳酸材料制备的膜相比,进行抗菌性能测试。实验结果表明,添加氧化锌-聚乳酸(ZnO-PLLA)复合材料比纯PLLA有更好的热稳定性和更高的界面结合强度,结晶度由原来的42.2%增加到47.1%,提高了PLLA的结晶速率,并且复合材料具有较好的抑菌效果。The polylactic acid nanocomposite film was prepared by blending polylactic acid （PLLA）with nano-ZnO-PLLA whose surface was modified with nano zinc oxide （nano-ZnO）. The composites werecharacterized by scanning electron microscopy （ SEM ） and differential scanning calorimetry （ DSC ）. Thenano-ZnO-PLLA/PLLA composite fihn was compared with the pure PLLA film, and they were tested onantibacterial properties. The experimental results show that the nano-ZnO-PLLA/PLLA composite material hasbetter thermal stability and higher interracial bonding strength than the pure PLLA, and the crystallinityincreases from 42.2% to 47.1%, which improves the crystallization rate of PLLA. Additionaly, thecomposites has good antibacterial activity.

关 键 词：聚乳酸 复合薄膜 氧化锌 

分 类 号：TB332[一般工业技术—材料科学与工程]