聚乳酸纤维原液着色用改性炭黑的制备及其性能

doi:10.13475/j.fzxb.20180502106

纺织学报 ›› 2019, Vol. 40 ›› Issue (05): 64-69.doi: 10.13475/j.fzxb.20180502106

聚乳酸纤维原液着色用改性炭黑的制备及其性能

董浩¹^,², 张丽平¹^,², 刘怡宁³, 王乐军³, 刘亚运⁴, 付少海¹^,²()

1.江苏省纺织品数字喷墨印花工程技术研究中心, 江苏无锡 214122
2.生态纺织教育部重点实验室(江南大学), 江苏无锡 214122
3.恒天纤维集团有限公司, 北京 100020
4.上海安诺其数码科技有限公司, 上海 200000

收稿日期:2018-05-08 修回日期:2018-12-27 出版日期:2019-05-15 发布日期:2019-05-21
通讯作者: 付少海
作者简介:董浩(1995—),男,硕士生。主要研究方向为染整工程。
基金资助:
国家重点研发计划项目(2017YFB0309300)

Preparation and properties of modified carbon black for dope dyeing of polylactic acid fiber

DONG Hao¹^,², ZHANG Liping¹^,², LIU Yining³, WANG Lejun³, LIU Yayun⁴, FU Shaohai¹^,²()

1. Jiangsu Engineering Research Center for Digital Textile Inkjet Printing, Wuxi, Jiangsu 214122, China
2. Key Laboratory of Eco-Textiles (Jiangnan University), Ministry of Education, Wuxi, Jiangsu 214122, China
3. Hengtian Fiber Group Co., Ltd., Beijing 100020, China
4. Shanghai Anoky Digital Technology Co., Ltd., Shanghai 200000, China

Received:2018-05-08 Revised:2018-12-27 Online:2019-05-15 Published:2019-05-21
Contact: FU Shaohai

摘要/Abstract

摘要：

针对聚乳酸纤维原液着色过程中炭黑与聚乳酸相容性差导致其力学性能下降的问题,采用原位聚合法制备了聚乳酸改性炭黑,并对聚乳酸纤维进行原液着色。探讨丙交酯用量、反应温度、聚合时间对聚乳酸改性炭黑的粒径及粒径分布的影响,并对其在聚乳酸纺丝溶剂中的分散稳定性进行测试,同时对加入改性与未改性炭黑前后的聚乳酸纺丝液及聚乳酸膜进行分析与表征。结果表明:在丙交酯单体的用量为1.5 g、聚合时间为6 h、聚合温度为70 ℃时制备出的改性炭黑的粒径最小,为184.2 nm,且其在聚乳酸纺丝溶剂中可以稳定分散,与聚乳酸相容性较好;与未改性炭黑相比,加入改性炭黑后聚乳酸的力学性能得到提升。

关键词: 聚乳酸纤维, 原液着色, 炭黑, 分散稳定性, 相容性

Abstract:

In order to solve the problem of deterioration of the mechanical properties caused by the poor compatibility between carbon black and polylactic acid in the dope dyeing process of polylactic acid fiber, polylactic acid modified carbon black was prepared by in-situ polymerization, which was then used in the dope dyeing of PLA. The effects of lactide dosage, reaction temperature, time and other factors on the particle size and particle size distribution of polylactic acid modified carbon black were explored, and the dispersion stability thereof in polylactic acid spinning solvent was tested. The polylactic acid spinning solution and the polylactic acid film added with the unmodified carbon black or the modified carbon black were analyzed and characterized. The results show that the modified carbon black has a minimum particle size (184.2 nm) when the dosage of the lactide monomer is 1.5 g, the polymerization time is 6 h, and the polymerization temperature is 70 ℃. The polylactic acid modified carbon black can be stably dispersed in polylactic acid spinning solvent, and has good compatibility with polylactic acid. Compared with unmodified carbon black, the mechanical properties of polylactic acid are improved after adding modified carbon black.

Key words: polylactic acid fiber, dope dyeing, carbon black, dispersion stability, compatibility

中图分类号:

TS193.2

董浩, 张丽平, 刘怡宁, 王乐军, 刘亚运, 付少海. 聚乳酸纤维原液着色用改性炭黑的制备及其性能[J]. 纺织学报, 2019, 40(05): 64-69.

DONG Hao, ZHANG Liping, LIU Yining, WANG Lejun, LIU Yayun, FU Shaohai. Preparation and properties of modified carbon black for dope dyeing of polylactic acid fiber[J]. Journal of Textile Research, 2019, 40(05): 64-69.

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聚乳酸纤维原液着色用改性炭黑的制备及其性能

Preparation and properties of modified carbon black for dope dyeing of polylactic acid fiber

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