阳离子染料易染改性聚酯的固相缩聚工艺与性能

doi:10.13475/j.fzxb.20180402705

纺织学报 ›› 2019, Vol. 40 ›› Issue (04): 21-25.doi: 10.13475/j.fzxb.20180402705

阳离子染料易染改性聚酯的固相缩聚工艺与性能

向国栋, 高庆文, 邓倩倩, 张须臻, 王秀华()

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, 浙江杭州 310018

收稿日期:2018-04-13 修回日期:2018-12-28 出版日期:2019-04-15 发布日期:2019-04-16
通讯作者: 王秀华
作者简介:向国栋(1997—),男。主要研究方向为高分子材料。

Preparation and performance of easy cationic dye-modified polyester by solid-phase polycondensation

XIANG Guodong, GAO Qingwen, DENG Qianqian, ZHANG Xuzhen, WANG Xiuhua()

Laboratory of National Local and Joint Engineering of Textile Fiber Materials and Processing Technology,Zhejiang Sci-Tech University, Hangzhou, Zhejiang 310018, China

Received:2018-04-13 Revised:2018-12-28 Online:2019-04-15 Published:2019-04-16
Contact: WANG Xiuhua

摘要/Abstract

摘要：

为改善常压型阳离子染料易染聚酯(ECDP)纤维的力学性能,通过提高其切片特性黏度的方法,以熔融缩聚制得的ECDP切片为原料,通过固相缩聚法对其进行增黏得到增黏切片。借助乌氏黏度计、差示扫描量热仪、X射线衍射仪、荧光光谱仪和热失重分析仪等对增黏切片的性能进行测试与表征。结果表明:ECDP切片的固相增黏工艺最佳条件为温度190 ℃,时间9 h;随着反应温度的升高或反应时间的增加,切片的特性黏度增加,且特性黏度与时间的平方根成线性关系;在190 ℃、9 h条件下增黏的切片特性黏度为0.69 dL/g,高于该温度或时间时,切片发生热降解,表面开始变黄。

关键词: 阳离子易染改性聚酯, 固相缩聚, 特性黏度, 热降解性能

Abstract:

In order to improve mechanical properties of easy cationic dye-modified polyester(ECDP) fiber, a method for improving the intrinsic viscosity of the slices was proposed. ECDP slices prepared by melt polycondensation as raw material were tackified by solid-phase polycondensation to obtain tackified slices. Ubbelohde viscometer, differential scanning calorimeter, X-ray diffractometer, fluorescence spectrometer, and thermogravimetric analyzer were employed to investigate the properties of ECDP slices. The results show that the optimum solid phase tackifying process conditions for ECDP slices are temperature of 190 ℃ and time of 9 h. The intrinsic viscosity of ECDP slices increases with the reaction temperature or reaction time, and the intrinsic viscosity is linear with the square root of time. The intrinsic viscosity of the slices tackified at 190 ℃ for 9 h is 0.69 dL/g. Under the conditions of higher than the reaction temperature or longer than the time, the surface of ECDP starts to become yellow due to thermal degradation.

Key words: easy cationic dye-modified polyester, solid-phase polycondensation, intrinsic viscosity, thermal degradation property

中图分类号:

O631.11

向国栋, 高庆文, 邓倩倩, 张须臻, 王秀华. 阳离子染料易染改性聚酯的固相缩聚工艺与性能[J]. 纺织学报, 2019, 40(04): 21-25.

XIANG Guodong, GAO Qingwen, DENG Qianqian, ZHANG Xuzhen, WANG Xiuhua. Preparation and performance of easy cationic dye-modified polyester by solid-phase polycondensation[J]. Journal of Textile Research, 2019, 40(04): 21-25.

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阳离子染料易染改性聚酯的固相缩聚工艺与性能

Preparation and performance of easy cationic dye-modified polyester by solid-phase polycondensation

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