| 提高壳聚糖/纳米SiOx复合膜机械性能的研究 |
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| 引用本文： | 王明力;司方;张义明;赵德刚.提高壳聚糖/纳米SiOx复合膜机械性能的研究[J].华南理工大学学报(自然科学版),2008,36(7). |
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| 作者姓名： | 王明力;司方;张义明;赵德刚 |
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| 作者单位： | [1]贵州大学贵州省发酵工程与生物制药重点实验室,贵州贵阳550003 [2]贵州大学绿色农药与农业生物工程教育部重点实验室,贵州贵阳550025 |
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| 基金项目： | 贵州省优秀科技教育人才省长基金，贵州省科技攻关项目 |
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| 摘 要： | 采用二次回归旋转正交组合试验设计方法，探讨了壳聚糖纳米SiOx复合膜的优化工艺条件，用流延法制得分散比较均匀的纳米复合膜，并对涂膜结构进行红外光谱（IR）和X射线衍射（XRD）表征。结果表明：复合膜（CTS-SiOx）中壳聚糖与SiOx粒子表面的大量羟基存在强烈的氢键相互作用，当壳聚糖为1.98g、SiOx 0.017g、单甘酯0.04g时，壳聚糖复合涂膜拉伸强度达到最优值，以壳聚糖单膜相比，拉伸强度、断裂伸长率和直角撕裂强度分别提高了49％, 45％和12%。复合膜的性能优于简单膜。
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| 关 键 词： | 壳聚糖 复合膜 拉伸强度 二次回归旋转正交组合试验设计 |
| 收稿时间： | 2007-12-19 |
| 修稿时间： | 2008-3-17 |
Enhance Mechanical Properties of Chitosan / nano-SiOx Composite Film |
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| Wang Ming-li.Enhance Mechanical Properties of Chitosan / nano-SiOx Composite Film[J].Journal of South China University of Technology(Natural Science Edition),2008,36(7). |
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| Authors: | Wang Ming-li |
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| Abstract: | Optimal conditions for preparing the modified chitosan-nano-SiOx film were investigated through the quadratic regression rotatable orthogonal design. Chitosan film was characterized by Infra-red spectroscopy (IR) and X-ray diffraction（XRD. The results showed that a great deal of hydrogen bonds formed between chitosan and surface hydroxyl groups of nano-SiOx. And also it was found that the modified chitosan film has a satisfactory tensile strength (increased 49%) as chitosan content is 1.98g, nano-SiOx 0.017g and glycerel monostearte 0.04g. In addition, Elongation-at-break and Orthogonal Tear strength enhanced by 45％ and 8.5% respectively. Evidently, the performances of composite film are superior to that of simple film. |
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| Keywords: | chitosan composite film tensile strength quadratic regression rotatable orthogonal design |
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