丝绸Issue(4)：10-14,5.
再生丝素纤维的湿法纺丝及其交联改性研究
Wet spinning of the regenerated silk fibroin fibers and its cross-linking modification research
高艳菲 1明津法 2邓春闽 3陈梅 3左保齐3
作者信息
- 1. 现代丝绸国家工程实验室,江苏苏州215123
- 2. 苏州大学纺织与服装工程学院,江苏苏州215021
- 折叠
摘要
Abstract
Regenerated silk fibroin fibers were prepared by the wet-spinning method with Hexafluoroisopropanol (HFIP) as the solvent. Then, the regenerated silk fibroin fibers were processed by l-(3-Dimethylaminopropyl)-3-ethylcarbodiimide(EDC) and N-Hydroxy succinimide(NHS) as the cross-linking agents. The fiber aggregative state structure and the changes of the mechanical properties before and after drafting and cross-linking were studied by scanning electron microscopy (SEM), X-ray diffraction (XRD), FTIR, DSC, the mechanical property and other indicative methods. The results showed that after drafting and EDC/NHS cross-linking, the average diameter of the regenerated silk fibroin fibers became fine and its average value equaled 87um. The crystal structure was mainly in silk II structure. The thermal stability of the fiber was improved, and the thermal decomposition peaks shifted from 281 癈 to 288 "C. In addition, the mechanical properties of the fibers obviously increased. Its tensile strength and elongation at break reached 1.41 cN/dtex and 11.38%, respectively, exhibiting good flexibility.关键词
再生丝素纤维/湿法纺丝/交联改性Key words
Silk fibroin/ Wet spinning/ Crosslinked modification分类
轻工纺织引用本文复制引用
高艳菲,明津法,邓春闽,陈梅,左保齐..再生丝素纤维的湿法纺丝及其交联改性研究[J].丝绸,2012,(4):10-14,5.
