高等学校化学学报 ›› 2011, Vol. 32 ›› Issue (7): 1629.

• 研究论文 • 上一篇    下一篇

尿素/己内酰胺/氢氧化钠/水溶剂体系对纤维素溶解和再生性能

赵地顺,李贺,刘猛帅,付林林,张娟   

  1. 河北科技大学化学与制药工程学院,  石家庄  050018
  • 收稿日期:2010-09-10 修回日期:2010-11-24 出版日期:2011-07-10 发布日期:2011-06-02
  • 通讯作者: 赵地顺 E-mail:dishunzhao@yahoo.com.cn
  • 基金资助:

    国家自然科学基金(批准号: 20976107)资助.

Dissolubility of the Cellulose in Urea/Caprolactam/NaOH/Aqueous Solution and the  Performance of Regenerated Cellulose

ZHAO Di-Shun*, LI He, LIU Meng-Shuai, FU Lin-Lin, ZHANG Juan   

  1. College of Chemistry and Pharmaceutical Engineering, Hebei University of Science and Technology, Shijiazhuang 050018, China
  • Received:2010-09-10 Revised:2010-11-24 Online:2011-07-10 Published:2011-06-02
  • Contact: ZHAO Di-Shun E-mail:dishunzhao@yahoo.com.cn
  • Supported by:

    国家自然科学基金(批准号: 20976107)资助.

摘要: 本文探讨了尿素/己内酰胺/氢氧化钠水溶剂体系对纤维素的溶解和再生情况。利用正交试验确定了该体系各组分的最佳组成 (wt):尿素10 %,己内酰胺4 %,氢氧化钠8 %。采用红外光谱(FT-IR)、热重失重(TGA)分析、X-射线衍射(XRD)等对再生前后纤维素进行了表征。结果表明,该溶剂有良好的溶解性能,并且是纤维素的直接溶剂;低温有利于纤维素的溶解;溶解再生后的纤维素发生了晶型的变化;热稳定性有所降低。

关键词: 尿素/己内酰胺/氢氧化钠, 纤维素, 溶解性能

Abstract: Dissolution of cellulose in urea/caprolactam/NaOH aqueous and the performance of regenerated cellulose were discussed. The best ratio of urea/caprolactam/NaOH in solution was found by orthogonal design(wt): urea10%, caprolactam4%, NaOH8%. The both original cellulose and regenerated cellulose from urea/caprolactam/NaOH aqueous were characterized by Fourier transform infrared spectroscopy(FT-IR), thermogravimetry (TG) and X-ray diffraction (XRD) measurements. Results show that the novel system is a good direct cellulose solution. The solubility cellulose in urea/caprolactam/NaOH aqueous was better at lower temperature. The crystal of regenerated cellulose has changed and the thermostability of regenerated cellulose slightly decreased.

Key words: urea/caprolactam/NaOH, cellulose, solubility

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