溶胶-凝胶法制备HPMC/SiO_2杂化复合薄膜  

HPMC/SiO_2 Inorganic Hybrid Composite Films Were Prepared via Sol-Gel Process

作　　者：樊春艳[1] 王家俊[2] 顾春红[1] 刘海龙[1] 

机构地区：[1]浙江理工大学材料与纺织学院,杭州310018 [2]浙江理工大学先进纺织材料与制备技术教育部重点实验室,杭州310018

出　　处：《浙江理工大学学报（自然科学版）》2012年第4期484-488,493,共6页Journal of Zhejiang Sci-Tech University(Natural Sciences)

摘　　要：采用溶胶-凝胶法(sol-gel)在聚乳酸(PLA)基膜上负载羟丙基甲基纤维素/二氧化硅(HPMC/SiO2)有机-无机杂化层,制备HPMC/SiO2有杂化复合薄膜。表征和测试杂化复合薄膜的结构与性能。结果表明:当HPMC溶液体积分数为6%时,杂化复合薄膜的氧气阻隔性能比PLA薄膜的氧气阻隔性能提高了36倍,同时,杂化复合薄膜的拉伸强度优于PLA薄膜。Transparent HPMC/SiO2 inorganic-organic hybrid composite films, consisting of inorganic- organic hybrid composites on polylactic acid（PLA） film, are prepared via sol-gel process. The structure and properties of the hybrid composite films are inspected. The results show that when the volume ratio of HPMC solution to the hybrid sol is 6%, oxygen barrier of the hybrid composite films improved 32.3 times than PLA film. At the same time, tensile strength of the hybrid composite films are better than pure PLA film.

关 键 词：复合薄膜 溶胶-凝胶 二氧化硅 羟丙基甲基纤维素 氧气阻隔性 

分 类 号：TQ323.8[化学工程—合成树脂塑料工业]