高低黏PET并列复合纤维的制备与性能Preparation and Properties of High and Low Viscosity PET Side-by-Side Bicomponent Fiber
高庆文,邓倩倩,曹宇恒,吴灿清,张须臻,王秀华
GAO Qing-wen,DENG Qian-qian,CAO Yu-heng,WU Can-qing,ZHANG Xu-zhen,WANG Xiu-hua
摘要(Abstract)：
以两种不同特性黏度的聚对苯二甲酸乙二醇酯(PET)为原料,利用复合纺丝技术,一步法制得并列复合全拉伸丝(FDY)。采用声速法、差式扫描量热法等测试手段,分析了纺丝、热定形工艺对并列复合FDY的声速取向因子和结晶度下降,断裂伸长率增大,断裂强度减小,纤维的卷曲性能变好;随着热定形温度的升高,纤维的声速取向因子和结晶度增大,断裂强度提高,纤维的断裂伸长率和卷曲性能下降。
Based on two kinds of polyethylene terephthalate(PET) with different viscosity, PET side-by-side bicomponent fiber was obtained by melt spinning with twin screw extruder. Sound velocity method and different scanning calorimeter test were used to discuss the influence of different drawing process of PET fully drawn yarn(FDY) on its structure and properties. The results show that with the increase of spinning speed, the degree of crystallization and orientation of PET composite fiber decrease, the elongation at breaking and crimp properties of the PET composite fiber obviously increase, breaking strength decreases.However, with the increase of heat setting temperature of PET composite fiber, the degree of crystallization and orientation of fiber increase gradually, the breaking strength is improved. Nevertheless elongation and crimp properties decrease.
关键词(KeyWords)：
聚酯并列复合纤维;FDY;纺丝速度;热定形温度
PET side-by-side bicomponent fiber;FDY;spinning speed;heat setting temperature
基金项目(Foundation): 中国纺织工业联合会科技指导性项目(计划编号2017002)
作者(Author):
高庆文,邓倩倩,曹宇恒,吴灿清,张须臻,王秀华
GAO Qing-wen,DENG Qian-qian,CAO Yu-heng,WU Can-qing,ZHANG Xu-zhen,WANG Xiu-hua
DOI: 10.16090/j.cnki.hcxw.20181214.002
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