摘要
用改进的Hummers法制备了氧化石墨烯(GO),采用GO和聚乙烯醇(PVA),通过层层自组装法在聚乳酸(PLA)薄膜表面制备了(GO/PVA)n多层结构,通过接触角测试、原子力显微镜(AFM)对(GO/PVA)nPLA薄膜结构进行表征,利用紫外光谱跟踪PLA薄膜层层自组装过程,并测试和分析组装PLA薄膜的氧气阻隔性能和水汽阻隔性能。实验结果表明:GO和PVA在PLA薄膜表面实现了层层自组装,组装PLA薄膜的氧气阻隔性能提高较大,水汽阻隔性能也得到了一定提高。
Graphene oxide （GO）was prepared by modified Hummers method.A multilayer GO/PVA structure on the polylactic acid （PLA）film were prepared by layer-by-layer self-assembly method with the GO and polyvinyl alcohol （PVA）.（GO/PVA）nPLA film was characterized by contact angle test and atomic force microscope （AFM）.UV spectrum was applied to track layer-by-layer self-assembly process of PLA film,and oxygen barrier properties and moisture barrier properties of assembled PLA film were tested and analyzed.The results demonstrate GO and PVA achieve layer-by-layer self-assembly on the surface of PLA film;oxygen barrier properties of assembled PLA film improve greatly,and moisture barrier properties also improve.
作者
周莹
王家俊
邹元虎
周灵青
ZHOUYing WANG Jiajun ZOUYuanhu ZHOU Lingqing(College of Materials and Textiles, Zhejiang Sci-Tech University, Hangzhou 310018, China)
出处
《浙江理工大学学报（自然科学版）》
2016年第6期837-843,共7页
Journal of Zhejiang Sci-Tech University(Natural Sciences)
关键词
氧化石墨烯
聚乙烯醇
层层自组装
聚乳酸
阻隔性能
graphene oxide
polyvinyl alcohol
layer-by-layer self-assembly
polylactic acid
barrier properties
