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Microstructural change of degummed Bombyx mori silk: An in situ stretching wide-angle X-ray-scattering study
Liang, K; 宫宇;Gong, Y; Fu, JL; Yan, S; Tan, YY; Du, R; Xing, XQ; Mo, G; Chen, ZJ; Cai, Q; Sun, DB; Wu, ZH; Du R(杜蓉);  Xing XQ(邢雪青);  Mo G(默广);  Chen ZJ(陈中军);  Cai Q(蔡泉);  Wu ZH(吴忠华)
2013
发表期刊INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
卷号57页码:99-104
摘要The microstructural change of degummed Bombyx mod silk was examined by in situ wide-angle X-ray-scattering (WAXS) with applied stretching force. WAXS patterns confirmed that the crystalline and amorphous regions coexist in the silk fibers. The crystallites with beta-sheet structure have an orthorhombic unit cell with lattice parameters: a = 9.10 angstrom, b = 9.71 angstrom and c = 6.80 angstrom. The crystallite size, crystallite orientation and crystallinity were also estimated based on the WAXS patterns. The results demonstrate that the crystallite size is almost unchanged with the stretching strain. The crystallinity is approximately linearly increasing with the applied stretching force. However, the change of the unit-cell orientation degree with c-axis along the fiber axis behaves as a fast stage and an approximately unchanged stage during the in situ stretching process. All these experimental phenomena confirm that the microstructure of the degummed silk fibers can be well explained by the model of oriented beta-sheet structure with a banded feature. (C) 2013 Elsevier B.V. All rights reserved.
关键词Bombyx mori silk fiber Wide angle X-ray scattering Crystallite size Crystallinity Orientation
学科领域Biochemistry & Molecular Biology
DOI10.1016/j.ijbiomac.2013.02.018
收录类别SCI
WOS记录号WOS:000319098900016
引用统计
被引频次:6[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/223841
专题多学科研究中心
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GB/T 7714
Liang, K,宫宇;Gong, Y,Fu, JL,et al. Microstructural change of degummed Bombyx mori silk: An in situ stretching wide-angle X-ray-scattering study[J]. INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES,2013,57:99-104.
APA Liang, K.,宫宇;Gong, Y.,Fu, JL.,Yan, S.,Tan, YY.,...&杜蓉;邢雪青;默广;陈中军;蔡泉;吴忠华.(2013).Microstructural change of degummed Bombyx mori silk: An in situ stretching wide-angle X-ray-scattering study.INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES,57,99-104.
MLA Liang, K,et al."Microstructural change of degummed Bombyx mori silk: An in situ stretching wide-angle X-ray-scattering study".INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES 57(2013):99-104.
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