Study on ionic liquid/cellulose/coagulator phase diagram and its application in green spinning process
文献类型：期刊论文
| 作者 | Liu, Yanrong1,2; Nie, Yi1; Pan, Fengjiao1; Zhou, Le1; Ji, Xiaoyan2; Kang, Zhaoqing1; Zhang, Suojiang1 |
| 刊名 | JOURNAL OF MOLECULAR LIQUIDS
 |
| 出版日期 | 2019-09-01 |
| 卷号 | 289页码:8 |
| 关键词 | Ternary phase diagram Cloud point Binodal curve Ionic liquids Cellulose |
| ISSN号 | 0167-7322 |
| DOI | 10.1016/j.molliq.2019.111127 |
| 英文摘要 | In this work, the cellulose phase separation behavior was investigated by using ionic liquids (ILs) as novel solvents to acquire a green process for cellulose fiber spinning. The cloud point titration method combined with the turbidity correlation equation was used to obtain the ternary diagram of IL/cellulose/coagulator throughout the whole compositional range. The effects of the type of ILs, the cellulose materials, the kind of coagulators and the regeneration temperatures for cellulose fiber manufacturing process on the phase separation behavior were studied systematically. It was found that the linearized cloud point (LCP) curve correlation fits to experimental data well and can be used to quantify the optimized coagulator, and among the studied cases, the system of [EMIM]DEP, cotton pulp and water with the regeneration temperature at 298.15 K is the best. Meanwhile, COSMO-RS was used to predict the interaction between solvent, cellulose and coagulator, and the comparison with the LCP correlation shows good agreement. The crystal structure of the regenerated cotton pulp was determined with XRD, and the result evidences that the crystal structure of the regenerated cellulose transforms from cellulose I to cellulose II. The crystallinity decreases from 96.0% (raw cotton pulp) to 85.6% after 24 h dissolution in [EMIM]DEP at 363.15 K, and it has a slight deviation from 24 h to 72 h, which illustrates that the spinning process can run continuously at 363.15 K when using [EMIM]DEP as the solvent. (C) 2019 Published by Elsevier B.V. |
| WOS关键词 | COSMO-RS ; TERNARY-SYSTEMS ; LIQUID-MIXTURES ; WOOL KERATIN ; CELLULOSE ; DISSOLUTION ; WATER ; BEHAVIOR ; POLYMER ; PREDICTION |
| 资助项目 | Natural Science Foundation of Beijing Municipality[2182070] ; National Natural Science Foundation of China[21576262] ; National Natural Science Foundation of China[21776276] ; Kempe Foundation |
| WOS研究方向 | Chemistry ; Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:000482247900030 |
| 出版者 | ELSEVIER |
| 资助机构 | Natural Science Foundation of Beijing Municipality ; National Natural Science Foundation of China ; Kempe Foundation |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/30541]  |
| 专题 | 中国科学院过程工程研究所 |
| 通讯作者 | Nie, Yi; Zhang, Suojiang |
| 作者单位 | 1.Chinese Acad Sci, CAS Key Lab Green Proc & Engn, Beijing Key Lab Ion Liquids Clean Proc, State Key Lab Multiphase Complex Syst,Inst Proc E, Beijing 100190, Peoples R China 2.Lulea Univ Technol, Div Energy Sci, Energy Engn, S-97187 Lulea, Sweden |
| 推荐引用方式 GB/T 7714 | Liu, Yanrong,Nie, Yi,Pan, Fengjiao,et al. Study on ionic liquid/cellulose/coagulator phase diagram and its application in green spinning process[J]. JOURNAL OF MOLECULAR LIQUIDS,2019,289:8. |
| APA | Liu, Yanrong.,Nie, Yi.,Pan, Fengjiao.,Zhou, Le.,Ji, Xiaoyan.,...&Zhang, Suojiang.(2019).Study on ionic liquid/cellulose/coagulator phase diagram and its application in green spinning process.JOURNAL OF MOLECULAR LIQUIDS,289,8. |
| MLA | Liu, Yanrong,et al."Study on ionic liquid/cellulose/coagulator phase diagram and its application in green spinning process".JOURNAL OF MOLECULAR LIQUIDS 289(2019):8. |
入库方式： OAI收割
来源：过程工程研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。