Journal of Textile Research ›› 2024, Vol. 45 ›› Issue (08): 81-88.doi: 10.13475/j.fzxb.20230405001

• Fiber Materials • Previous Articles     Next Articles

Preparation of polyether ester elastic fiber and its structure and properties

ZHANG Mengru, WANG Can, XIAO Wangyang, LIAO Mengdie, WANG Xiuhua()   

  1. National Engineering Laboratory for Textile Fiber Materials and Processing Technology, Zhejiang Sci-Tech University, Hangzhou, Zhejiang 310018, China
  • Received:2023-04-24 Revised:2024-05-14 Online:2024-08-15 Published:2024-08-21
  • Contact: WANG Xiuhua E-mail:wxiuhua@126.com

RichHTML

3

PDF (PC)

34

Abstract:

Objective To improve the current situation of single variety of elastic fibers in the field of textiles and apparel, thermoplastic polyether ester elastic (TPEE) fibers were prepared by melt spinning, aiming to achieve advantages of high elasticity, low hysteresis and easy processing. This research was set to study the effects of drafting and heat setting process on the properties of TPEE fibers in order to provide support for the development and application of the fibers.

Method Thermoplastic polyether ester fibers were prepared by horizontal micro single-hole extruder, then drafted and heat-set to form drafted fibers. The crystallization properties, orientation properties, mechanical properties, elastic recovery properties and thermal shrinkage properties of TPEE fibers were tested and analyzed by X-ray diffractometer, sound velocity orientation instrument, and single yarn tesnsile tester.

Results The effects of drafting ratio and heat setting temperature on the structure and properties of TPEE fibers were investigated by varying the drafting ratio and heat setting temperature. The results showed that when the heat setting temperature was 100 ℃ and the drafting ratio was increased from 3 times to 6 times, the crystallinity and orientation degree of TPEE fibers were increased with the increase of drafting ratio. With the increase of drafting ratio, the breaking strength of TPEE fibers was increased from 1.44 cN/dtex to 2.68 cN/dtex, the elongation at break decreased from 179.9% to 31.0%, and the elastic recovery rate initially increased and then decreased. When the drafting ratio was 5 times, the elastic recovery rate reached the maximum value of 96.2%. When the drafting ratio changed from 3 times to 6 times, the boiling water shrinkage rate was increased from 15.9% to 27.4%, and the dry heat shrinkage rate increased from 14.4% to 28.2%. With a 5 times drawing ratio, when the heat setting temperature was increased from 80 ℃ to 140 ℃, the crystallinity of TPEE fibers was increased and the total orientation degree of the TPEE fibers was decreased, the breaking strength and elastic recovery rate did not change significantly, and the elongation at break was initially increased and then decreased. At 140 ℃ heat-setting temperature, the breaking strength reached 2.49 cN/dtex and the elastic recovery rate reached 96.6% compared to other heat-setting temperatures. Notably, the boiling water shrinkage rate was dropped from 30.5% to 19.4%, and the dry heat shrinkage rate was decreased from 29.8% to 20.1% under the same heat-setting temperature (80-140 ℃), indicating a significant enhancement in the dimensional stability of the fibers.

Conclusion With the increase of drafting ratio, the mechanical properties of TPEE fibers demonstrated enhancement, while the dimensional stability of which was significantly reduced. The elastic recovery properties were initially increased and then dropped under the same conditions, and the elastic recovery rate of the TPEE fibers was up to 96.2% as the draft ratio increased to 5 times. With the increase of heat-setting temperature, the dimensional stability of TPEE fibers was obviously enhanced, while the mechanical properties and elastic recovery properties of TPEE fibers were almost unaffected, and the elastic recovery rate was remained above 96.0%. This work provides more raw material choices for the application of TPEE elastic fibers in the deformations textiles.

Key words: polyether ester elastic fiber, crystallization, orientation, elastic recovery rate, thermal shrinkage property, heat setting

CLC Number: 

  • TS102.6

Fig.1

Preparation process of polyether ester elastic fiber. (a) Melt extrusion of nascent fiber; (b) Drafting and heat setting"

Tab.1

Sample process parameters"

试样编号 牵伸倍数 热定形温度/℃
A0 — —
A1 3 100
A2 4 100
A3 5 100
A4 6 100
A5 5 80
A6 5 120
A7 5 140

Fig.2

1-D WAXD diffraction patterns of TPEE fibers with different drafting ratios"

Fig.3

Crystallinity and phase separation degree of TPEE fibers with different drafting ratios"

Fig.4

2-D X-ray orientation diffraction patterns of TPEE fibers with different draft ratios"

Fig.5

1-D X-ray orientation diffraction patterns of TPEE fibers with different draft ratios"

Tab.2

Crystal orientation degrees and sound velocity values of TPEE fibers with different draft ratios"

试样编号 晶区取向度/% 声速值/(km·s-1)
A1 92.02 0.87
A2 93.96 0.94
A3 94.05 1.12
A4 94.42 1.18

Tab.3

Mechanical properties of TPEE fibers with different draft ratios"

试样
编号		 断裂伸长
率/%		 断裂强度/
(cN·dtex-1)		 弹性回复
率/%
A1 179.9 1.44 88.5
A2 96.6 1.77 93.7
A3 58.5 2.43 96.2
A4 30.1 2.68 94.6

Tab.4

Heat shrinkage properties of TPEE fibers with different draft ratios%"

试样编号 沸水收缩率 干热收缩率
A1 15.9 14.4
A2 20.5 19.1
A3 25.0 24.9
A4 27.4 28.2

Fig.6

1-D WAXD diffraction patterns of TPEE fibers with different heat setting temperature"

Fig.7

Crystallinity and phase separation degree of TPEE fibers with different heat setting temperature"

Fig.8

2-D X-ray orientation diffraction patterns of TPEE fibers with different heat setting temperature"

Fig.9

1-D X-ray diffraction patterns of TPEE fiber with different heat setting temperature"

Tab.5

Crystal orientation degrees and sound velocity values of TPEE fibers with different heat setting temperature"

试样编号 晶区取向度/% 声速值/(km·s-1)
A5 93.08 1.16
A3 94.05 1.12
A6 94.41 1.08
A7 94.45 1.07

Tab.6

Mechanical properties of TPEE fibers with different heat setting temperature"

试样
编号		 断裂强度/
(cN·dtex-1)		 断裂伸长
率/%		 弹性回复
率/%
A5 2.49 47.4 96.0
A3 2.43 58.5 96.2
A6 2.48 51.9 96.1
A7 2.49 48.7 96.6

Tab.7

Heat shrinkage properties of TPEE fibers with different heat setting temperatures%"

试样编号 沸水收缩率 干热收缩率
A5 30.5 29.8
A3 25.0 24.9
A6 22.4 22.8
A7 19.4 20.1
[1] LU Jiawei, ZHANG Hong, CHEN Yuemiao, et al. Effect of chain relaxation on the shrinkage behavior of TPEE foams fabricated with supercritical CO2[J]. Polymer, 2022. DOI:10.1016/j.polymer.2022.125262.
[2] SU H J, JEONG J E, KIM S, et al. Hardness modulated thermoplastic poly(ether ester) elastomers for the automobile weather-strip application[J]. Polymers, 2021. DOI:10.3390/polym13040525.
[3] JIANG, Ruichen, YAO Yichong, LIU Shun, et al. Preparation and characterization of high melt strength thermoplastic polyester elastomer with different topological structure using a two-step functional group reaction[J]. Polymer, 2019. DOI:10.1016/j.polymer.2019.121628.
[4] YU Jinchao, YAN Tingwei, JI Hong, et al. The evolution of structure and performance in copolyether-ester fibers with different heat-treatment process[J]. Journal of Polymer Research, 2019. DOI:10.1007/s10965-019-1714-8.
[5] 刘森林, 闫婷伟, 南建举, 等. 不同软硬段含量的聚醚酯纤维结构与性能的关系[J]. 合成纤维, 2017, 46(11): 1-5, 45.
LIU Senlin, YAN Tingwei, NAN Jianju, et al. The relationship between the structures and properties of polyether-ester fibers with various hard/soft segment contents[J]. Synthetic Fiber in China, 2017, 46(11): 1-5, 45.
[6] 宋晓芳, 李光. 聚醚酯弹性纤维的改性研究[J]. 合成技术及应用, 2007, 80(4): 8-11.
SONG Xiaofang, LI Guang. Modified properties research of poly(ether ester) elastic fibers[J]. Synthetic Technology and Application, 2007, 80(4): 8-11.
[7] 闫婷伟, 于金超, 张玉梅, 等. 不同纺丝速度下聚醚酯纤维结构与性能的关系[J]. 合成纤维, 2016, 45(4): 5-10.
YAN Tingwei, YU Jinchao, ZHANG Yumei, et al. Structure and properties of copolyether-ester fiber under different spinning speed[J]. Synthetic Fiber in China, 2016, 45(4): 5-10.
[8] 邓佳. 热塑性聚酯弹性体的结构性能研究及其单丝的制备[D]. 上海: 东华大学, 2012: 44.
DENG Jia. The structure and properties of thermoplastic polyester elastomer and its monofilament[D]. Shanghai: Donghua University, 2012: 44.
[9] 莫志深, 张宏放. 晶态聚合物结构和X射线衍射[M]. 北京: 科学出版社, 2010: 234.
MO Zhishen, ZHANG Hongfang. Crystalline polymer structure and X-ray diffraction[M]. Beijing: Science Press, 2010: 234.
[10] BEDJAOUI S, DOULACHE N, KHEMICI M W, et al. XRD, Raman and photoluminescence study of gamma-irradiated PBT[J]. Applied Physics A, 2022. DOI:10.1007/s00339-022-05498-w.
[11] ZHANG Jiacheng, LI Yonggang, MA Gang, et al. Study of the microstructure formation mechanisms of poly(ether-ether-ketone) monofilaments via melt spinning[J]. Journal of Applied Polymer Science, 2023. DOI:10.1002/app.53365.
[12] 束永健. PPDO/PLLA皮芯复合单丝的制备与性能研究[D]. 杭州: 浙江理工大学, 2018: 16.
SHU Yongjian. The preparation of PPDO/PLLA sheath-core composite monofilaments and the study of performance[D]. Hangzhou: Zhejiang Sci-Tech University, 2018: 16.
[13] 王鹏. 聚对苯二甲酸-2,5-呋喃二甲酸乙二醇共聚酯(PEFT)熔融可纺性及纤维结构与性能研究[D]. 宁波: 宁波大学, 2018: 39.
WANG Peng. Study on melt-spinnability, fiber structure and properties of poly(ethylene terephthalate-co-ethylene 2,5 furandicarboxylate) copolyesters[D]. Ningbo: Ningbo University, 2018: 39.
[14] 何曼君. 高分子物理[M]. 上海: 复旦大学出版社, 2007: 185.
HE Manjun. Polymer physics[M]. Shanghai: Fudan University Press, 2007: 185.
[15] 闫静静, 肖长发, 王纯, 等. 拉伸过程中聚偏氟乙烯纤维晶体结构变化[J]. 高分子学报, 2019, 50(7): 752-760.
YAN Jingjing, XIAO Changfa, WANG Chun, et al. Crystalline structure changes of poly(vinylidene fluoride) fibers during stretching process[J]. Acta Polymerica Sinica, 2019, 50(7): 752-760.
doi: 10.11777/j.issn1000-3304.2018.18261
[16] 马艳丽. 聚丁二酸丁二醇-共-对苯二甲酸丁二醇共聚酯(PBST)纤维的热定型研究[D]. 上海: 东华大学, 2010: 13.
MA Yanli. Study on heat-setting of poly(butylene succinate-co-butylenne terephthalate) (PBST) fibers[D]. Shanghai: Donghua University, 2010: 13.
[17] 沈新元. 高分子材料加工原理[M]. 北京: 中国纺织出版社, 2014: 188.
SHEN Xinyuan. Polymer material processing principle[M]. Beijing: China Textile & Apparel Press, 2014: 188.
[18] WANG P, HUANG W, ZHANG Y, et al. An evoluted bio-based 2,5-furandicarboxylate copolyester fiber from poly(ethylene terephthalate)[J]. Journal of Polymer Science, 2020, 58 (2): 320-329.
[19] 陈耶福. 立构复合聚乳酸纤维的制备与结构性能研究[D]. 上海: 东华大学, 2022: 54.
CHEN Yefu. Study on preparation, structure and properties of stereo composite polylactic acid fiber[D]. Shanghai: Donghua University, 2022: 54.
[1] CHEN Can, TUO Xiaohang, WANG Ying. Preparation and mechanical properties of yarns made from rolling oriented polyurethane nanofiber membranes [J]. Journal of Textile Research, 2024, 45(08): 134-141.
[2] WU Dongxue, LIU Rangtong, YU Yuanyuan, LI Shujing, HAN Yun. Analysis of influence of lower limb movement characteristics on hip circumference of pants [J]. Journal of Textile Research, 2024, 45(01): 168-175.
[3] NIE Wenqi, XU Shuai, GAO Junshuai, FANG Bing, SUN Jiangdong. Degradation properties of poly(3-hydroxybutyrate-co-3-hydroxyvalerate) modified polyester composite filament [J]. Journal of Textile Research, 2023, 44(09): 35-42.
[4] LI Haoyi, JIA Zichu, LIU Yuliang, TAN Jing, DING Yumei, YANG Weimin, MU Wenying. Influence of electrode loading mode on preparation in polymer melt electrowriting [J]. Journal of Textile Research, 2023, 44(04): 32-37.
[5] XU Xiaotong, JIANG Zhenlin, ZHENG Qinchao, ZHU Keyu, WANG Chaosheng, KE Fuyou. Effect of thermal conductive structure on non-isothermal crystallization behavior of polyethylene terephthalate [J]. Journal of Textile Research, 2022, 43(03): 44-49.
[6] QIU Zhicheng, LI Xin, LI Zhiyong, WANG Ying, JIN Jian, WU Shufang. Structure and properties of polyester/carbon black system prepared by in-situ continuous polymerization [J]. Journal of Textile Research, 2021, 42(10): 15-21.
[7] LIU Hao, LU Minglei, HUANG Xiaowei, WANG Na, WANG Xuefang, NING Xin, MING Jinfa. Preparation and characterization of silk fibroin hydrogel in acid-alcohol system [J]. Journal of Textile Research, 2021, 42(08): 41-48.
[8] CHEN Yong, WANG Jingjing, WANG Chaosheng, GU Donghua, WU Jing, WANG Huaping. Effect of oligomers on crystalline properties of polytrimethylene terephthalate [J]. Journal of Textile Research, 2020, 41(10): 1-6.
[9] ZHAO Yaru, XIAO Hong, CHEN Jianying. Elastic and electrical properties of stainless steel fiber/cotton blended spandex wrap yarn [J]. Journal of Textile Research, 2020, 41(03): 45-50.
[10] BAI He, QIAN Xiaoming, FAN Jintu, QIAN Yao, LIU Yongsheng, WANG Xiaobo. Theoretical model for number of fiber contacts in fibrous porous materials [J]. Journal of Textile Research, 2019, 40(12): 21-26.
[11] PAN Weinan, XIANG Hengxue, ZHAI Gongxun, NI Mingda, SHEN Jiaguang, ZHU Meifang. Influence of relative molecular weight of copolyamide 6/66 on crystallization and rheological properties thereof [J]. Journal of Textile Research, 2019, 40(09): 8-14.
[12] ZHOU Ling, JIN Xiangyu. Controllability of bead structure in hot air-through bonded nonwovens and crystallization kinetics thereof [J]. Journal of Textile Research, 2019, 40(08): 27-34.
[13] BAO Hong, XU Shui, ZHANG Xiaoning, CHENG Guotao, ZHU Yong. Cationization of Bombyx mori silk fibroin and effect there of on wool traits [J]. Journal of Textile Research, 2019, 40(07): 24-30.
[14] LIU Jinxin, ZHANG Haifeng, ZHANG Xing, HUANG Chen, ZHENG Xiaobing, JIN Xiangyu. Influence of multistage drawing and heat setting on structure and properties of polyethylene/polypropylene bicomponent fibers [J]. Journal of Textile Research, 2019, 40(05): 24-29.
[15] . Nonisothermal crystallization kinetics of novel nylon-carbon chain polyamide 1211 [J]. Journal of Textile Research, 2018, 39(12): 1-6.
Viewed
Full text


Abstract

Cited
  Shared   
  Discussed   
No Suggested Reading articles found!
京ICP备14006648号
Copyright 2021 © Editorial office of Journal of Textile Research
Supported by Beijing Magtech Co.Ltd