Structure and Properties of Regenerated Cellulose Fibers Based on Dissolution of Cellulose in a CO2 Switchable Solvent
文献类型：期刊论文
| 作者 | Li, Jinling; Lu, Shan; Liu, Fei; Quo, Qian; Na, Haining; Zhu, Jin |
| 刊名 | ACS SUSTAINABLE CHEMISTRY & ENGINEERING
 |
| 出版日期 | 2021 |
| 卷号 | 9期号:13页码:4744-4754 |
| 英文摘要 | Development of an effective, nontoxic, and easy-to-process novel cellulose dissolution system for the preparation of regenerated cellulose fibers is of great importance and necessity for a greener and more sustainable future, with which the traditional viscose process with serious pollution can be gradually substituted. Herein, we demonstrated the successful utilization of a CO2 switchable solvent, a novel cellulose derivative dissolution system resembling viscose but without releasing toxic gases such as CS2 and H2S, for the preparation of regenerated cellulose fibers. The corncob cellulose raw material can be readily dissolved completely after the capture of CO2 in dimethyl sulfoxide (DMSO) with 1,8-diazabicyclo [5.4.0] undec-7-ene (DBU), resulting in cellulose spinning dope with high stability. Results showed that regenerated cellulose fibers with smoother surface morphology, a higher degree of crystallinity, and satisfactory mechanical properties were obtained under mild conditions with relatively slower double diffusion. Moreover, drawing treatment further increased the degree of crystallinity and orientation and the mechanical properties. All fibers had a dense structure, circular cross sections, no fibrillation, and high thermal stability. The regenerated cellulose fibers had degrees of crystallinity and orientation and tensile strength of 75.3%, 0.82, and 1.05 cN/dtex and 68.4%, 0.82, and 1.00 cN/dtex, respectively, in water and 30 vol % DMSO coagulation baths with a drawing ratio of 2.0 and 1.5, respectively. This work illustrated that the CO2 switchable solvent, which could be considered as green viscose, is a good candidate with great potential for the preparation of regenerated cellulose fibers with high performance and various functionalities in the future. |
| 源URL | [http://ir.nimte.ac.cn/handle/174433/22042]  |
| 专题 | 中国科学院宁波材料技术与工程研究所 2021专题_期刊论文 |
| 作者单位 | 1.Na, HN (corresponding author), Chinese Acad Sci, Key Lab Biobased Polymer Mat Technol & Applicat Z, Ningbo Inst Mat Technol & Engn, Ningbo 315201, Zhejiang, Peoples R China. 2.Liu, F |
| 推荐引用方式 GB/T 7714 | Li, Jinling,Lu, Shan,Liu, Fei,et al. Structure and Properties of Regenerated Cellulose Fibers Based on Dissolution of Cellulose in a CO2 Switchable Solvent[J]. ACS SUSTAINABLE CHEMISTRY & ENGINEERING,2021,9(13):4744-4754. |
| APA | Li, Jinling,Lu, Shan,Liu, Fei,Quo, Qian,Na, Haining,&Zhu, Jin.(2021).Structure and Properties of Regenerated Cellulose Fibers Based on Dissolution of Cellulose in a CO2 Switchable Solvent.ACS SUSTAINABLE CHEMISTRY & ENGINEERING,9(13),4744-4754. |
| MLA | Li, Jinling,et al."Structure and Properties of Regenerated Cellulose Fibers Based on Dissolution of Cellulose in a CO2 Switchable Solvent".ACS SUSTAINABLE CHEMISTRY & ENGINEERING 9.13(2021):4744-4754. |
入库方式： OAI收割
来源：宁波材料技术与工程研究所
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。