郭静雯,翁鸣,杨倩,肖雪,王秀华
GUO Jing-wen,WENG Ming,YANG Qian,XIAO Xue,WANG Xiu-hua

• 1:浙江理工大学纺织纤维材料与加工技术国家地方联合工程实验室
• 2:浙江理工大学绍兴柯桥研究院有限公司

摘要(Abstract)：

选择两种不同硬度的热塑性聚酰胺弹性体(TPAE)，在卧式微量单孔挤出机中进行熔融挤出得到初生纤维，再经过牵伸和热定形制备出TPAE纤维。通过差示扫描量热、热重分析、旋转流变等测试手段对原料性能进行了表征，并采用单纱强力机、INSTRON万能强力机等对纤维的性能进行了评价。结果表明：在相同纺丝牵伸条件下，硬度高的TPAE纤维强度高，硬度低的强度低；在定伸长30%条件下，硬度高的TPAE纤维弹性回复率最高值为75.9%，硬度低的弹性回复率最高值为91.9%，随着TPAE硬度的降低，纤维弹性回复率增大。
Two thermoplastic polyamide elastomers(TPAE) with different hardness were selected and meltextruded in a horizontal micro single-hole extruder to obtain primary fibers, which were then drawn and heat-set to fabricate TPAE fibers. The properties of the raw materials were characterized by differential scanning calorimetry, thermo gravimetry, rotational rheology and other testing methods, and those of the fibers were evaluated by single-yarn strength machine and INSTRON universal strength machine. The results show that under the same spinning and drafting conditions, the TPAE fibers with higher hardness have higher strength, and the TPAE fibers with lower hardness have lower strength; under the condition of fixed elongation of 30%, the highest elastic recovery rate of TPAE fibers with higher hardness is 75.9%, and that of TPAE fibers with lower hardness is 91.9%, namely, the elastic recovery rate of fiber increases with decreasing TPAE hardness.

关键词(KeyWords)： 热塑性聚酰胺弹性体;纺丝;牵伸热定形;拉伸性能;弹性回复性
thermoplastic polyamide elastomer;spinning;drawing heat setting;drawing performance;elastic recovery

Abstract:

Keywords:

基金项目(Foundation): 浙江理工大学绍兴柯桥研究院科研专项资金资助(KYY2021001C)

作者(Author): 郭静雯,翁鸣,杨倩,肖雪,王秀华
GUO Jing-wen,WENG Ming,YANG Qian,XIAO Xue,WANG Xiu-hua

DOI: 10.16090/j.cnki.hcxw.2022.10.024

参考文献(References)：

• [1]伍威,彭军,王文志,等. PA6-b-PPG嵌段共聚物的合成与表征[J].工程塑料应用, 2015, 43(4):17-21.
• [2]肖勤莎,罗毅.聚酰胺系热塑性弹性体[J].合成橡胶工业. 1998, 21(6):372-375.
• [3] HUCHER C, EUSTACHE R P, BEAUME F, et al. Motional heterogeneity in poly(ether-block-amide)copolymers as revealed by solid-state NMR[J]. Macromolecules, 2005, 38(22):9200-9209.
• [4] BREWER C M, CHORVATH I, FOURNIER F M, et al. Thermoplastic silicone elastomers from compatibilized polyamide resins:US6362288[P].2002-03-26.
• [5]王莉莉,董侠,朱平,等.长碳链聚醚酰胺弹性纤维开发及其弹性机理[J].高分子学报, 2017(5):752-760.
• [6]刘东辉,司小娟,曹玲玲,等.共聚改性尼龙6的弹性和结晶性能的研究[J].材料工程, 2008(10):275-277.
• [7]杨中开,李洪杰,李小宁. PA6/PEG嵌段共聚物的结构与性能研究[J].北京服装学院学报, 2004(1):11-16.
• [8]秦艳分,沈金科,周翔,等.相容剂对PP/TPEE共混物动态流变性能影响[J].纺织学报, 2013, 34(9):1-5.
• [9]李健,黄庆,李鑫. PGLA纤维力学性能与结晶和取向的关系[J].化纤与纺织技术, 2010, 39(1):1-4.
• [10]高庆文,邓倩倩,曹宇恒,等.高低黏PET并列复合纤维的制备与性能[J].合成纤维, 2018, 47(12):9-13.
• [11]俞海峰,杨美桂.拉伸工艺对PET/PTT复合纤维性能的影响[J].合成纤维工业, 2012, 35(3):58-60.
• [12]钟淑芳,赵庆章,夏禾,等.聚醚酯弹性纤维后处理工艺的研究(四)[J].纺织科学研究, 1996(4):15-16.
• [13]高佳佳.热处理对生物可降解PBST纤维弹性和降解性能的影响[D].上海:东华大学, 2012.