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氢氧化钠/尿素/硫脲溶剂体系对纤维素溶解性能研究
引用本文:王怀芳,朱平,张传杰.氢氧化钠/尿素/硫脲溶剂体系对纤维素溶解性能研究[J].合成纤维,2008,37(7).
作者姓名:王怀芳  朱平  张传杰
作者单位:1. 中原工学院,河南,郑州,450007
2. 武汉科技学院,新型纺织材料绿色加工及其功能化教育部重点实验室,湖北,武汉,430073
摘    要:通过设计正交实验,研究不同组成的氢氧化钠/尿素/硫脲溶剂体系对纤维素的溶解性能,确定了该溶剂体系中各组分的最佳含量,并通过X-射线衍射分析、红外光谱分析、热重分析等手段,表征了该溶剂体系获得的再生纤维素膜的结构和性能。结果表明:该溶剂体系对纤维素有良好的溶解性能,且溶解的纤维素再生后为纤维素Ⅱ,但其热稳定性低于原纤维素。

关 键 词:氢氧化钠/尿素/硫脲  纤维素  溶解性能  热性能

Dissolution of Cellulose in NaOH/urea/thiourea Aqueous Solution
WANG Huai-fang,ZHU Ping,ZHANG Chuan-jie.Dissolution of Cellulose in NaOH/urea/thiourea Aqueous Solution[J].Synthetic Fiber in China,2008,37(7).
Authors:WANG Huai-fang  ZHU Ping  ZHANG Chuan-jie
Abstract:Dissolution of cellulose in NaOH/thiourea/urea aqueous solution was researched. The best ratio of NaOH/thiourea/urea in solution was found by orthogonal design. Structure and properties of regenerated cellulose film was analysed by using the XRD, FTIR and TG. The results were demonstrated that NaOH/urea/thiourea were good solvents for cellulose; the regenerated cellulose belongs to cellulose Ⅱ and the heat stability of the regenerated cellulose was less than the original one.
Keywords:NaOH/urea/thiourea  cellulose  solubility  heat stability
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