基于动力学特性的黑色高强聚酯工业丝研发

doi:10.13475/j.fzxb.20190705208

纺织学报 ›› 2020, Vol. 41 ›› Issue (04): 1-8.doi: 10.13475/j.fzxb.20190705208

• 纤维材料 • 下一篇

基于动力学特性的黑色高强聚酯工业丝研发

姬洪¹, 张阳¹, 陈康¹, 宋明根², 蒋权², 范永贵², 张玉梅¹(), 王华平¹

1.东华大学纤维材料改性国家重点实验室, 上海 201620
2.浙江尤夫高新纤维股份有限公司, 浙江湖州 313017

收稿日期:2019-07-18 修回日期:2020-01-03 出版日期:2020-04-15 发布日期:2020-04-27
通讯作者: 张玉梅
作者简介:姬洪(1987—),男,博士生。主要研究方向为聚酯纤维功能化。
基金资助:
国家重点研发计划支持项目(2016YFB0303004);湖州市南太湖精英计划创新团队项目(2016HJYLB-03-B)

Developing black high-tenacity polyester yarns based on dynamic characteristics

JI Hong¹, ZHANG Yang¹, CHEN Kang¹, SONG Minggen², JIANG Quan², FAN Yonggui², ZHANG Yumei¹(), WANG Huaping¹

1. State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Donghua University,Shanghai 201620, China
2. Zhejiang Unifull Industrial Fiber Co., Ltd., Huzhou, Zhejiang 313017, China

Received:2019-07-18 Revised:2020-01-03 Online:2020-04-15 Published:2020-04-27
Contact: ZHANG Yumei

摘要/Abstract

摘要：

针对原液着色法开发聚酯工业丝存在的基料黏度大、纺丝温度高,以及对着色剂分散性要求高等技术要求,详细研究了添加碳黑的高黏聚酯的流变特性、热稳定性、结晶行为等与纺丝动力学相关的材料特性,作为设计聚酯工业丝干燥、熔融、纺丝挤出、冷却、热拉伸和热定型等工艺参数的技术依据,保证生产工艺的稳定控制,开发了断裂强度为8.20 cN/dtex的黑色高强聚酯工业丝。结果表明:碳黑在纤维中的分散尺寸小于300 nm,色牢度均达到4~5级;该方法不仅充分体现了聚酯工业丝原液着色与力学性能兼具的优点,且避免了工艺设计的盲目性,节约工业化实验成本。

关键词: 原液着色, 聚酯工业丝, 碳黑, 流变性能, 色牢度

Abstract:

In order to overcome the unstable problems in dope dyeing technology due to the high spinning temperature and disperse of colorant in high viscosity melts, the material properties including the rheological properties, thermal stability, crystallization kinetics related to spinning kinetics of high intrinsic viscosity polyester with carbon black were studied. The key procedures including drying, melting, spinning extrusion, cooling, hot drawing and heat setting were designed based on the above achieved results. The black polyester industrial yarn with high strength (tenacity of 8.20 cN/dtex) and good color fastness to washing and rubbing (4-5 grade) has been achieved. The research outcome is not only helpful to produce dope dyed polyester industrial yarns with clear design directions and with cost, but also provide reference for the development of other functional fibers.

Key words: dope dyeing, polyester industrial yarn, carbon black, rheology performance, color fastness

中图分类号:

TS102

姬洪, 张阳, 陈康, 宋明根, 蒋权, 范永贵, 张玉梅, 王华平. 基于动力学特性的黑色高强聚酯工业丝研发[J]. 纺织学报, 2020, 41(04): 1-8.

JI Hong, ZHANG Yang, CHEN Kang, SONG Minggen, JIANG Quan, FAN Yonggui, ZHANG Yumei, WANG Huaping. Developing black high-tenacity polyester yarns based on dynamic characteristics[J]. Journal of Textile Research, 2020, 41(04): 1-8.

图/表 10

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图6

表1

图7

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表2

HT与BHT结晶及取向结构参数"

样品名称	结晶度/%		晶粒尺寸/nm		取向因子
样品名称	DSC 法	WAXD法	(0 $1 ˉ$ 1)	(010)	声速取向	晶区取向	非晶区取向
HT	43	62	5.51	3.82	0.942	0.98	0.85
BHT	44	62	4.98	3.48	0.945	0.95	0.88

表2

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样品名称	线密度/ dtex	断裂强度/ (cN·dtex^-1)	断裂伸长率/%	热收缩率/%
HT	1 121	8.06	14.12	6.20
BHT	1 119	8.20	13.30	13.30

基于动力学特性的黑色高强聚酯工业丝研发

Developing black high-tenacity polyester yarns based on dynamic characteristics

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