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张力对PET/PTT长丝结构和性能的影响
引用本文:肖红,施楣梧,刘晶.张力对PET/PTT长丝结构和性能的影响[J].纺织学报,2008,29(7):1-5.
作者姓名:肖红  施楣梧  刘晶
作者单位:1. 总后军需装备研究所,北京,100082
2. 东华大学,上海,201620
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。

关 键 词:PET/PTT双组分长丝  张力  卷曲性能  力学性能  声速取向因子  张力  长丝  结构  力学性能  影响  structure  and  properties  tension  Impact  弹性  初始模量  拉伸  热湿处理  松弛条件  完全  指数  收缩率  伸长率  取向因子  声速  状态
收稿时间:2007-08-24;

Impact of tension on the structure and properties of PET/PTT Filaments
XIAO Hong,SHI Meiwu,LIU Jing.Impact of tension on the structure and properties of PET/PTT Filaments[J].Journal of Textile Research,2008,29(7):1-5.
Authors:XIAO Hong  SHI Meiwu  LIU Jing
Affiliation:1.The Quartermaster Research Institute of the General Logistics Department of the PLA;Beijing 100082;China;2.Donghua University;Shanghai 201620;China
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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