T800弹性纱线微观结构和力学性能的测试与分析

纺织学报 ›› 2014, Vol. 35 ›› Issue (3): 18-0.

T800弹性纱线微观结构和力学性能的测试与分析

陈慰来万林焰易定红

浙江理工大学材料与纺织学院

收稿日期:2013-04-19 修回日期:2013-08-19 出版日期:2014-03-15 发布日期:2014-03-11

Testing and analyzing microstructures and mechanical properties of T800 elastic yarn

Received:2013-04-19 Revised:2013-08-19 Online:2014-03-15 Published:2014-03-11

摘要/Abstract

摘要： 本文对最新T800弹性纱线的微观结构及力学性能进行研究。采用扫描电镜对T800弹性纱线的横截面和纵向结构进行了分析，采用Nicolet 5700测试其红外光谱，推断其含有I、Cl、F和N元素，而普通涤纶大分子链只含有C、H、O；采用DSC测试并计算其结晶度为5.8%，可推断出纤维大分子、基原纤排列不是很规整，缝隙空洞大且多，同时测试并比较三种不同细度的T800弹性纱线的拉伸和弹性性能，得出其细度越小，强度和弹性越大。通过对T800弹性纱线的微观结构和力学性能的研究，将对新型弹力织物原料的选择及弹力性能的研究具有一定的理论及实际指导意义。

关键词: 弹性纱线, 横截面, 纵向结构, 结晶度, 力学性能

Abstract: The microstructures and mechanical properties of the latest T800 elastic yarn were studied in this paper. Cross section and longitudinal surface were observed and analyzed by SEM. Nicolet 5700 was used to test the IR spectrogram of T800 filament which indicated the elements of I、Cl、and N were included but the regular PET macromolecular chain contains only three elements C、 H、O.Then we employed DSC to test the fiber's crystallinity which indicated that the fiber macromolecule, matrix fibril arrangement wasn’t very regular, the gap was larger.Meanwhile,testing and comparing the tensile strength and elasticity properties of the three kinds of fibers,the smaller the fineness,the better the tensile strength and elasticity.This study has a certain theoretical and practical guiding significance for the raw material selection for new elastic fabric and the research for elasticity properties

Key words: elastic yarn, cross section, longitudinal structure, crystallinity, mechanical properties

陈慰来万林焰易定红. T800弹性纱线微观结构和力学性能的测试与分析[J]. 纺织学报, 2014, 35(3): 18-0.

wei-lai chen. Testing and analyzing microstructures and mechanical properties of T800 elastic yarn[J]. JOURNAL OF TEXTILE RESEARCH, 2014, 35(3): 18-0.

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