高等学校化学学报2011,Vol.32Issue(7):1629-1633,5.
尿素/己内酞胺/氢氧化钠/水溶剂体系对纤维素的溶解和再生性能
Dissolubility of the Cellulose in Urea/Caprolactam/NaOH/Aqueous Solution and the Performance of Regenerated Cellulose
摘要
Abstract
Dissolution of cellulose in urea/caprolactam/NaOH/aqueous and the performance of regenerated cellulose were discussed. The best ratio(mass fraction) of urea/caprolactam/NaOH in solution was found by orthogonal design; urea 10%, caprolactam 4%, NaOH 8%. Both the original cellulose and regenerated cellulose from urea/caprolactam/NaOH/aqueous were characterized by Fourier transform infrared spectroscopy (FTIR) , thermogravimetry analysis (TGA) and X-ray diffraction (XRD) measurements. The results show that the novel system was a good direct cellulose solvent. The solubility of cellulose in urea/caprolactam/NaOH/ aqueous was better at lower temperature. The crystal of regenerated cellulose changed and the thermostability of regenerated cellulose slightly decreased.关键词
尿素/己内酞胺/氢氧化钠/纤维素/溶解性能Key words
Urea/caprolactam/NaOH/Cellulose/Solubility分类
化学引用本文复制引用
赵地顺,李贺,刘猛帅,付林林,张娟..尿素/己内酞胺/氢氧化钠/水溶剂体系对纤维素的溶解和再生性能[J].高等学校化学学报,2011,32(7):1629-1633,5.基金项目
国家自然科学基金(批准号:20976107)资助. (批准号:20976107)