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功能高分子学报:2010,23(4):391-395

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后处理过程中以水为溶剂的干法纺再生丝素纤维的结构演变

赵瀛梅¹, 张耀鹏², 魏伟³, 邵惠丽⁴, 胡学超⁵

(1.东华大学纤维材料改性国家重点实验室，材料科学与工程学院，化学纤维研究所，上海 201620;2.东华大学纤维材料改性国家重点实验室，材料科学与工程学院，化学纤维研究所，上海 201621;3.东华大学纤维材料改性国家重点实验室，材料科学与工程学院，化学纤维研究所，上海 201622;4.东华大学纤维材料改性国家重点实验室，材料科学与工程学院，化学纤维研究所，上海 201623;5.东华大学纤维材料改性国家重点实验室，材料科学与工程学院，化学纤维研究所，上海 201624)

Structure Development of the Silk Fiber Dry Spun from Regenerated Silk Fibroin Aqueous Solution in the Processes of Post Treatment

ZHAO Ying-mei¹, ZHANG Yao-peng², WEI Wei³, SHAO Hui-li⁴, HU Xue-chao⁵

(1.State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Material Science and Engineering, Institute of Chemical Fibers, Donghua University, Shanghai 201620, China;2.State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Material Science and Engineering, Institute of Chemical Fibers, Donghua University, Shanghai 201621, China;3.State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Material Science and Engineering, Institute of Chemical Fibers, Donghua University, Shanghai 201622, China;4.State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Material Science and Engineering, Institute of Chemical Fibers, Donghua University, Shanghai 201623, China;5.State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Material Science and Engineering, Institute of Chemical Fibers, Donghua University, Shanghai 201624, China)

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本文已被：浏览 1413次下载 1624次
投稿时间：2010-09-01

中文摘要: 以水为溶剂的干法纺再生丝素蛋白纤维可通过后处理提高其力学性能，且后处理方法对纤维性能的提高程度有很大影响。为了优化干法纺再生丝素蛋白纤维的后处理工艺，定量研究了两种后处理方法中再生丝素蛋白分子的取向结构和构象演变,即方法A（纤维先在φ=80%的乙醇水溶液中浸泡1 h，再在热蒸汽中拉伸2倍）与方法B（纤维先在φ=80%的乙醇水溶液中拉伸2倍，再在该溶液中浸泡1 h）。探讨了纤维结构变化与力学性能之间的关系。结果表明：在乙醇水溶液中或在热蒸汽中拉伸均比仅在乙醇水溶液中浸泡更有利于丝素蛋白的构象转变，也对提高丝素蛋白分子链的取向更为有效。与方法A相比，方法B更能提高纤维的取向程度、β-折叠构象的含量以及力学性能。

中文关键词: 再生丝素蛋白纤维干法纺丝后处理结构转变

Abstract:The mechanical properties of silk fiber from regenerated silk fibroin (RSF) aqueous solution can be improved and greatly affected by post treatment. In order to optimize the post treatment process for the RSF fiber, the orientation and conformation development of the RSF molecules in two different post treatment processes were studied quantitatively. The two processes are named as method A (the RSF fiber was immersed in φ=80% ethanol solution for 1 h then drawn 2 times in steam) and method B (the RSF fiber was drawn 2 times in φ=80% ethanol solution then immersed in the same solution for 1 h). Furthermore, the relationship between the conformation transition and the mechanical properties of the RSF fibers was discussed. Comparing to immersing the fiber in ethanol aqueous solution, it is more efficient to transit the RSF conformation and improve the RSF orientation by post drawing the fiber in ethanol aqueous solution or in steam. Thus, method B instead of method A was adopted for an optimal process due to the resultant high β sheet content, orientation and excellent mechanical properties of the RSF fibers.

keywords: regenerated silk fibroin fiber dry spinning post treatment conformation transition

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基金项目:国家自然科学基金（50803011）；高等学校博士学科点专项科研基金（200802550001）；教育部留学回国人员科研启动基金；上海市教育发展基金会“晨光计划”（2007CG44）；上海市浦江人才计划（09PJ1400700）；上海市重点学科建设项目（B603）

Author Name	Affiliation	E-mail
ZHAO Ying-mei	State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Material Science and Engineering, Institute of Chemical Fibers, Donghua University, Shanghai 201620, China	shirley@mail.dhu.edu.cn
ZHANG Yao-peng	State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Material Science and Engineering, Institute of Chemical Fibers, Donghua University, Shanghai 201621, China	zyp@dhu.edu.cn
WEI Wei	State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Material Science and Engineering, Institute of Chemical Fibers, Donghua University, Shanghai 201622, China
SHAO Hui-li	State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Material Science and Engineering, Institute of Chemical Fibers, Donghua University, Shanghai 201623, China
HU Xue-chao	State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Material Science and Engineering, Institute of Chemical Fibers, Donghua University, Shanghai 201624, China

引用本文：
赵瀛梅,张耀鹏,魏伟,邵惠丽,胡学超.后处理过程中以水为溶剂的干法纺再生丝素纤维的结构演变[J].功能高分子学报,2010,23(4):391-395.
ZHAO Ying-mei,ZHANG Yao-peng,WEI Wei,SHAO Hui-li,HU Xue-chao.Structure Development of the Silk Fiber Dry Spun from Regenerated Silk Fibroin Aqueous Solution in the Processes of Post Treatment[J].Journal of Functional Polymers,2010,23(4):391-395.

作者	单位	E-mail
赵瀛梅	东华大学纤维材料改性国家重点实验室，材料科学与工程学院，化学纤维研究所，上海 201620	shirley@mail.dhu.edu.cn
张耀鹏	东华大学纤维材料改性国家重点实验室，材料科学与工程学院，化学纤维研究所，上海 201621	zyp@dhu.edu.cn
魏伟	东华大学纤维材料改性国家重点实验室，材料科学与工程学院，化学纤维研究所，上海 201622
邵惠丽	东华大学纤维材料改性国家重点实验室，材料科学与工程学院，化学纤维研究所，上海 201623
胡学超	东华大学纤维材料改性国家重点实验室，材料科学与工程学院，化学纤维研究所，上海 201624

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