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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
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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.
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)
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 composite films sol-gel SiOz HPMC oxygen barrier
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