Structural ATR-IR analysis of cellulose fibers prepared from a NaOH complex aqueous solution

被引：56
作者：
Yang, Y. P. [1 ]
Zhang, Y. [1 ]
Lang, Y. X. [1 ]
Yu, M. H. [1 ]
机构：
[1] Donghua Univ, Coll Mat Sci & Engn, State Key Lab Modificat Chem Fibers & Polymer Mat, Shanghai 201620, Peoples R China
来源：
2017 GLOBAL CONFERENCE ON POLYMER AND COMPOSITE MATERIALS (PCM 2017) | 2017年 / 213卷
基金：
中国国家自然科学基金;
关键词：
MULTIFILAMENT; DISSOLUTION; SPUN;
D O I：
10.1088/1757-899X/213/1/012039
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
In this study, regenerated cellulose fibers were successfully prepared from cellulose/NaOH/thiourea/urea aqueous solution through an efficient extrusion dissolution method. The microstructure of the regenerated cellulose fibers were analysed by using attenuated total reflection infrared (ATR-IR) spectroscopy and the corresponding two-dimensional (2D) correlation spectroscopy. The results showed that the fibers demonstrate a typical crystalline cellulose II and a relatively high crystallinity. Improved crystal structure and tensile strength were obtained in the regenerated cellulose fibers due to improved multi-roller drawing process. The total crystalline index (TCI) and tensile strength of the fibers at different spinning stages were determined in the range of 0.46-0.54 and 1.06-2.30 cN/dtex, respectively. The described cellulose regeneration pathway provided an environmentally friendly and simple method, which could have a significant influence on current cellulose regeneration industries.
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页数：7
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