| 纳米TiO2/丝素蛋白多孔材料的结构和性能 |
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| 引用本文： | 郑敏,朱海霖,冯新星,朱宝来,陈建勇.纳米TiO2/丝素蛋白多孔材料的结构和性能[J].蚕业科学,2008,34(2):284-288. |
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| 作者姓名： | 郑敏 朱海霖 冯新星 朱宝来 陈建勇 |
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| 作者单位： | 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,浙江理工大学材料与纺织学院,杭州,310018;浙江理工大学服装学院,杭州,310018 |
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| 基金项目： | 国家自然科学基金
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浙江省自然科学基金
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高等学校博士学科点专项科研项目
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教育部长江学者和创新团队发展计划 |
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| 摘 要： | 将不同配比的纳米TiO2加入到丝素溶液中,经过冷冻干燥,得到纳米TiO2/丝素蛋白多孔材料。采用扫描电镜(SEM)、X射线衍射(XRD)、红外光谱(FTIR)对材料进行了表征及溶失率的测试,结果表明:纳米TiO2/丝素多孔材料的内部孔为不规则的多角形,且孔与孔相互贯通,平均孔径为22~68μm,孔隙率为85%~92%;随着纳米TiO2加入量的增大,丝素蛋白的结晶结构从silkⅠ向silkⅡ构象转变,在水中的溶失率明显下降。
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| 关 键 词： | 丝素蛋白 纳米TiO2 多孔材料 结构 溶失率 |
Structure and Properties of Nano TiO2/Silk Fibroin Porous Materials |
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| ZHENG Min,ZHU Hai-Lin,FENG Xin-Xing,ZHU Bao-Lai,CHEN Jian-Yong.Structure and Properties of Nano TiO2/Silk Fibroin Porous Materials[J].Acta Sericologica Sinica,2008,34(2):284-288. |
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| Authors: | ZHENG Min ZHU Hai-Lin FENG Xin-Xing ZHU Bao-Lai CHEN Jian-Yong |
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| Abstract: | The Nano TiO2/silk fibroin porous materials were prepared from the silk fibroin solution added with different ratios of nano TiO2by freeze-drying method. And it was characterized by using SEM, XRD, FTIR and water-solubility tests. The results showed that the shape of these pores was random polygonal, and one pore was linked to another pore. The average pore diameter was from 22～68 μm, and porosity was from 85%～92%.The crystal of silk fibroin was changed from silk Ⅰ to silk Ⅱ by increasing the concentration of Nano TiO2 in the solution. Furthermore, the dissolubility of silk fibroin reduced significantly in water. |
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| Keywords: | Silk fibroin Nano TiO2 Porous materials Structure Dissolubility |
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