| 纳米SiO_2/纤维素包装薄膜结构形态及性能研究 |
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| 引用本文： | 王建清,徐梅,金政伟,赵明旭,张莉.纳米SiO_2/纤维素包装薄膜结构形态及性能研究[J].包装工程,2009(9). |
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| 作者姓名： | 王建清 徐梅 金政伟 赵明旭 张莉 |
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| 作者单位： | 天津科技大学; |
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| 基金项目： | 国家“十一五”科技支撑计划项目(2006BAD30B02) |
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| 摘 要： | 采用具有活性基团的硅烷偶联剂KH550(γ-氨丙基三乙氧基硅烷)对纳米SiO2粒子的表面进行改性。以NMMO为溶剂,以纤维素为原料,并向铸膜液中添加改性纳米SiO2,制备改性纳米SiO2/纤维素膜。采用原子力显微镜(AFM)观察了改性纳米SiO2/纤维素薄膜的表面形态,结合电子显微镜(SEM)观察其断面结构,并测定了薄膜的力学性能和透氧透湿性能。实验结果表明:改性后的SiO2较好的在铸膜液中分散,当SiO2粒径为30nm,添加量为2%,偶联剂用量为5%时,纳米复合纤维素膜的各项性能达到最佳。
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| 关 键 词： | 纳米SiO_2 表面改性 偶联剂 纤维素 |
Study of Morphological Structure and Property of SiO_2 Nano-particle/Cellulose Packaging Film |
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| WANG Jian-qing,XU Mei,JIN Zheng-wei,ZHAO Ming-xu,ZHANG Li.Study of Morphological Structure and Property of SiO_2 Nano-particle/Cellulose Packaging Film[J].Packaging Engineering,2009(9). |
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| Authors: | WANG Jian-qing XU Mei JIN Zheng-wei ZHAO Ming-xu ZHANG Li |
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| Affiliation: | WANG Jian-qing,XU Mei,JIN Zheng-wei,ZHAO Ming-xu,ZHANG Li(Tianjin University of Science & Technology,Tianjin 300222,China) |
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| Abstract: | Silane coupling agent KH550 with active groups was used for modification of nano-size silica particles.Cellulose was molecularly blended to form the true solution through the strong dissolving effect of the solvent N-methyl-morphine-oxide(NMMO).Nano-particles SiO2 were added into casting film solution.The morphological structure of the surface of the composite film was investigated with AFM and SEM.The results showed that modified nano-particles were well dispersed in the casting film solution;when the diam... |
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| Keywords: | nano-particle SiO2 surface modification coupling agent cellulose |
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