| 甘油对丝素蛋白膜水溶性和结构的影响 |
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| 引用本文： | 罗敏清,卢神州.甘油对丝素蛋白膜水溶性和结构的影响[J].高等学校化学学报,2011,32(10):2460-2464. |
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| 作者姓名： | 罗敏清 卢神州 |
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| 作者单位： | 1. 现代丝绸国家工程实验室,
2.苏州大学纺织与服装工程学院, 苏州 215123 |
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| 基金项目： | 国家“九七三”计划项目(批准号:2005CB623906); 江苏省产学研联合创新资金项目(批准号:BY2009127)资助 |
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| 摘 要： | 探讨了甘油的加入对丝素蛋白溶解过程的结晶结构及结晶度的影响. 以甘油为添加剂用流延法于室温制备一系列丝素共混膜, 测试了其含水率、溶失率及结构和机械性能. 结果表明, 随着甘油加入量的增加, 丝素蛋白的溶失率逐渐降低; 当甘油/丝素质量分数超过10%时, 共混膜呈现水不溶性. 当甘油加入量较少时, 丝素蛋白呈现少量的Silk Ⅱ结晶, 而Silk Ⅰ结构不明显. 随着甘油含量的不断增加, Silk Ⅰ结晶逐渐增加而Silk Ⅱ结晶逐渐减少. 当甘油加入量达到不溶点(10%)时, 丝素蛋白主要转变为Silk Ⅰ结晶, 而几乎没有Silk Ⅱ结晶. 甘油的加入可使共混膜的柔韧性显著提高, 并促使丝素蛋白结晶度提高以及促使丝素蛋白向Silk Ⅰ结晶转变, 从而降低丝素蛋白膜的水溶性.
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| 关 键 词： | 甘油 丝素蛋白 膜 结晶结构 结晶度 机械性能 |
| 收稿时间： | 2010-10-04 |
Relationship Between Structure and Solubility of Silk Fibroin and Glycerol in Blend Film |
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| LUO Min-Qing,LU Shen-Zhou.Relationship Between Structure and Solubility of Silk Fibroin and Glycerol in Blend Film[J].Chemical Research In Chinese Universities,2011,32(10):2460-2464. |
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| Authors: | LUO Min-Qing LU Shen-Zhou |
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| Affiliation: | 1. National Engineering Laboratory for Modern Silk, ;
2. College of Textile and Clothing Engineering, Soochow University, Suzhou 215123, China |
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| Abstract: | The change of crystal structure and crystallinity of silk fibroin(SF) in the process of becoming insoluble by adding glycerol was studied.The blend silk fibroin films were casted by silk fibroin solutions mixing with glycerol at a series of ratios at room temperature.The water-content,solubility,structure,and mechanical properties of the blend films were measured.The results show that with the content of glycerol increasing,the solubility decreases.The blend films became insoluble when the mass ratios of gl... |
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| Keywords: | Glycerol Silk fibroin Film Crystal structure Crystallinity Mechanical property |
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