纺织学报 ›› 2010, Vol. 31 ›› Issue (5): 15-18.

• 纤维材料 • 上一篇    下一篇

热处理对PET双收缩丝结构和性能的影响

汤成坦1;薛元2;颜志勇1;陈建勇2   

  1. 1.嘉兴学院服装与艺术设计学院 2. 浙江理工大学先进纺织材料与制备技术教育部重点实验室
  • 收稿日期:2009-04-23 修回日期:2009-07-16 出版日期:2010-05-15 发布日期:2010-05-15
  • 通讯作者: 薛元

Effect of heat treatment on structure and properties of PET BSY

TANG ChengTan1; Xue Yuan1 ;YAN Zhiyong1 ;CHEN Jianyong2   

  1. 1. College of Garment and Art design, Jiaxing University 2.Key Laboratory for Advanced Textile Materials and Manufacturing Technology, Ministry of Education, Zhejiang Sci-Tech University
  • Received:2009-04-23 Revised:2009-07-16 Online:2010-05-15 Published:2010-05-15
  • Contact: Xue Yuan

摘要:

对沸水处理前后的一步法涤纶FDY+POY双收缩丝纵向结构进行观察分析,并测试涤纶BSY的拉伸性能和沸水收缩率。研究结果表明:高收缩的FDY纤维组成纱线的骨架,而低收缩的POY纤维拱起于丝束的表面形成丝圈;双收缩丝的拉伸断裂过程具有双峰特性。双收缩丝中2个组分的断裂过程是不同步的,FDY组分先断裂,POY组分后断裂;沸水处理前后双收缩丝拉伸过程是不同的;双收缩丝的强度主要由FDY组分决定,初始模量主要由POY组分体现。

Abstract:

The length-wise structure, boiling water shrinkage and tensile properties of bi-shrinkage yarns (BSY) are examined before and after boiling water treatment. The bi-shrinkage yarns (BSY) is composed of preorientted yarn (POY)/fully drawn yarn (FDY) which is produced by one-step spinning process. The results show that the high-shrinkage yarn FDY constructs the skeleton of BSY, and the low-shrinkage POY forms filament loops on the surface of BSY. There are two peaks in tensile curves of BSY, which means that the two components do not break at the same time, FDY breaks first, and then POY. BSY breaking processes are different before and after being treated in boiling water. The breaking tenacity of BSY is mainly determined by FDY, and the initial modulus of BSY is mainly determined by POY.

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