离子液体溶解法分离废弃涤棉混纺织物

纺织学报 ›› 2012, Vol. 33 ›› Issue (8): 24-29.

离子液体溶解法分离废弃涤棉混纺织物

荣真¹,陈昀¹,唐世君²

1. 北京服装学院材料科学与工程学院
2. 总后勤部军需装备研究所

收稿日期:2011-08-23 修回日期:2011-12-02 出版日期:2012-08-15 发布日期:2012-08-08
通讯作者: 陈昀 E-mail:biftchy@163.com

Components separation of wastes polyester-cotton blended textile with ionic liquid dessolving method

RONG Zhen¹, CHEN Yun¹, TANG Shi-Jun²

1. School of Material Science and Engineering, Beijing Instutute of Fashion Technology
2. The Quartermaster Equipment Research Institute of the General Logistics Department of CPLA

Received:2011-08-23 Revised:2011-12-02 Online:2012-08-15 Published:2012-08-08
Contact: yun chen E-mail:biftchy@163.com

摘要/Abstract

摘要： 本文采用离子液体[BMIM]Cl溶解法分离废弃涤棉混纺织物中涤纶与棉纤维。文中详细研究了预处理、溶解温度、固-液比、溶解时间等因素对溶解过程的影响，并对溶解前后纱线的结构及性能进行了表征。研究结果表明，该方法可以有效地分离棉纤维含量较低的废弃涤棉混纺织物，溶解的棉纤维可变成固态纤维素，残留的纱线为涤纶纤维，其性能没有显著变化。适宜的溶解工艺参数：常温下清水浸泡纱线72h，溶解温度130~135℃，固-液比1~1.1g棉:50g离子液体，溶解时间4h。

关键词: 废弃涤棉混纺织物 , 组分分离 , 离子液体 , 棉纤维溶解

Abstract: Ionic liquid [BMIM]Cl was used to separate polyester and cotton from polyester-cotton blended textile wastes. The influences of dissolution of cotton fiber in ionic liquid, such as pretreatment, temperature, solid-liquid ratio, and time were studied, and the structure and properties of yarn before and after dissolution were characterized. The results showed that this method can effectively separate polyester-cotton blended textile wastes of lower cotton content. The dissolved cotton can be returned to solid cellulose. The residual yarn was polyester which performance has no significant change. The suitable dissolution process parameters: immersing yarn 72h in water under the room temperature, dissolving temperature 130~135℃, solid-liquid ratio of 1g~1.1g cotton: 50g ionic liquids, dissolving time 4h, and so on.

Key words: waste polyester-cotton , blended textile , components separation , ionic liquid , cotton fiber dissolution

荣真, 陈昀, 唐世君. 离子液体溶解法分离废弃涤棉混纺织物[J]. 纺织学报, 2012, 33(8): 24-29.

RONG Zhen, CHEN Yun, TANG Shi-Jun. Components separation of wastes polyester-cotton blended textile with ionic liquid dessolving method[J]. JOURNAL OF TEXTILE RESEARCH, 2012, 33(8): 24-29.

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