Comparative Study of the Silk Fiber Structure and Properties before and after the Tensional Twisting Treatment
Comparative Study of the Silk Fiber Structure and Properties before and after the Tensional Twisting Treatment
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张力加捻处理前后丝纤维结构与性能的对比研究
DOI：
10.3993/jfbim00270
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发表时间：
2017-09
影响因子：
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通讯作者：
Jing Wang
中科院分区：
文献类型：
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作者：
Shun-Lin Fu（本人的研究生）;Qiao-ming Dai;Jing Wang
超柔软高悬浮度丝织品的生产已成为纺织领域研究的热点和难点之一。通过不同条件下的拉伸来调节纤维结构，降低纤维初始模量，从而提高丝纤维的柔软性。在湿、干两种条件下，分别测试了拉伸加捻处理前后丝纤维的结构和力学性能。结果表明：与干拉伸扭转不同，预湿拉伸扭转诱导的螺旋结构形成更加均匀，晶体破坏和分子断裂程度低于干拉伸扭转；预湿加捻后，丝的断裂力虽有所降低，但柔软度和断裂伸长率均有所提高。
The production of the silk textile products with super softness and high suspension has become one of the hot and difficult topics in textile researches. To endow the silk fiber with improved softness, tensional drawing under different conditions was used to regulate the fiber structure and reduce the fiber initial modulus. The silk fiber structural and mechanical properties were tested before and after the tensional twisting treatments under wet and dry conditions respectively. The results showed that unlike the dry drafted twisting treatment, the pre-wet tensional twisting treatment induced more uniform helical structural formation with lower crystal destruction and molecule rupture than the dry one; though the breaking force decreased, the silk softness and breaking elongation were both improved after the pre-wet twisting treatment.