合成纤维

2008, No.233(07) 28-32

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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
Dissolution of Cellulose in NaOH/urea/thiourea Aqueous Solution

王怀芳;朱平;张传杰;
WANG Huai-fang1, ZHU Ping2, ZHANG Chuan-jie2 (1. Zhongyuan University of Technology, Zhengzhou 450007, Henan, China; 2. Key Laboratory of Green Processing and Functional Textiles of New Textile Materials, Ministry of Education, Wuhan University of Science and Engineering, Wuhan 430073, Hubei, China)

摘要(Abstract):

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。
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.

关键词(KeyWords): 氢氧化钠/尿素/硫脲;纤维素;溶解性能;热性能
NaOH/urea/thiourea, cellulose, solubility, heat stability

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基金项目(Foundation): 国家自然科学基金资助(项目编号:50773032)

作者(Author): 王怀芳;朱平;张传杰;
WANG Huai-fang1, ZHU Ping2, ZHANG Chuan-jie2 (1. Zhongyuan University of Technology, Zhengzhou 450007, Henan, China; 2. Key Laboratory of Green Processing and Functional Textiles of New Textile Materials, Ministry of Education, Wuhan University of Science and Engineering, Wuhan 430073, Hubei, China)

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