| 三偏磷酸钠交联壳聚糖/聚乙烯醇共混膜的制备及其性能研究 |
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| 引用本文： | 梁凯,杜予民,李艳,张婷.三偏磷酸钠交联壳聚糖/聚乙烯醇共混膜的制备及其性能研究[J].分析科学学报,2012,28(4):455-458. |
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| 作者姓名： | 梁凯 杜予民 李艳 张婷 |
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| 作者单位： | 1. 武汉大学资源与环境科学学院,湖北武汉430072;广东省佛山市环境监测中心站,广东佛山528000
2. 武汉大学资源与环境科学学院,湖北武汉,430072 |
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| 摘 要： | 将充分溶胀的壳聚糖/聚乙烯醇共混膜置于一定浓度的三偏磷酸钠溶液中进行交联反应制备出交联壳聚糖膜。用红外光谱(FTIR-ATR)、X-射线衍射(XRD)和扫描电镜(SEM)表征了膜的结构,并测试了其吸水率、力学性能、酶降解性能。结果表明,交联作用明显提高了膜的抗张强度和抗水性,并有效地降低了溶菌酶对其降解速率。
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| 关 键 词： | 壳聚糖 聚乙烯醇 三偏磷酸钠 交联膜 吸水率 力学性能 溶菌酶降解 |
The Properties and Preparation of Stmp-crosslinked Chitosan/PVA Blend Films |
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| LIANG Kai
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DU Yu-min
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LI Yan
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ZHANG Ting.The Properties and Preparation of Stmp-crosslinked Chitosan/PVA Blend Films[J].Journal of Analytical Science,2012,28(4):455-458. |
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| Authors: | LIANG Kai DU Yu-min LI Yan ZHANG Ting |
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| Institution: | 1(1.College of Resource Environmental & Science,Wuhan University,Wuhan 430072; 2.Foshan Environmental Monitoring Centre,Foshan 528000) |
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| Abstract: | Blend films of chitosan-PVA were crosslinked with sodium trimetaphosphate(STMP),and were characterized by FT-IR,XRD and SEM.Their water-absorbability,mechanical properties and the rate of degradation were also measured.The results indicated that the tensile strength and the water-resisting property of the crosslinked films were considerately improved,and the rate of degradation of photocrosslinked films by lysozym was reduced. |
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| Keywords: | Chitosan PVA Sodium trimetaphosphate Crosslinked film Water-absorbability Mechanical Properties Lysozym degradation |
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