纺织学报 ›› 2008, Vol. 29 ›› Issue (7): 1-5.

• 纤维材料 •    下一篇

张力对PET/PTT长丝结构和性能的影响

肖红1;施楣梧1;刘晶2   

  1. XIAO Hong;SHI Meiwu;LIU Jing
  • 收稿日期:2007-08-24 修回日期:2008-01-04 出版日期:2008-07-15 发布日期:2008-07-15

Impact of tension on the structure and properties of PET/PTT filaments

XIAO Hong;SHI Meiwu;LIU Jing   

  1. 1.The Quartermaster Research Institute of the General Logistics Department of the PLA;Beijing 100082;China;2.Donghua University;Shanghai 201620;China
  • Received:2007-08-24 Revised:2008-01-04 Online:2008-07-15 Published:2008-07-15

摘要: 讨论外加张力对PET/PTT双组分长丝结构、卷曲状态和力学性能的影响。随着张力的增加,PET/PTT双组分长丝的声速取向因子增加、初始模量增加;卷曲伸长率和收缩率呈一阶指数的形式下降。完全松弛条件下的热湿处理可使PET/PTT双组分长丝得到显著的卷曲,但拉伸初始模量大大降低,适当的小张力有利于兼顾长丝模量和卷曲弹性。

Abstract: The paper discusses the properties and structure of the PET/PTT filaments under various tension conditions.As the tension increases,the sonic orientation factor of PET/PTT fiber increases and the Yang′s modulus also increases;the crimp shrinkage rate and the curve elongation rate of PET/PTT fiber decrease exponentially.Moisture thermal treatment of PET/PTT filament under fully relaxed state can impart it the most prominent crimp,but the Yang′s modulus of the fiber will decrease significantly;appropriate small tension is beneficial for both the crimp and the Yang′s modulus.

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