稀盐酸水解棉纤维反应过程的综合研究  

Comprehensive Study on the Process of Cotton Fiber Hydrolysis by Dilute Hydrochloric Acid

作　　者：陈亚宁[1] 陈昀[2] 

机构地区：[1]北京服装学院材料科学与工程学院,北京100029 [2]北京市服装材料研究开发与评价重点实验室,北京100029

出　　处：《北京服装学院学报（自然科学版）》2010年第2期23-28,共6页Journal of Beijing Institute of Fashion Technology：Natural Science Edition

基　　金：北京市教育委员会科技计划面上项目(KM20071002006);北京市服装材料研究开发与评价重点实验室开放研究课题2008ZK-12

摘　　要：对稀酸催化水解棉纤维工艺进行了综合实验研究,用扫描电子显微镜观察了棉纤维形态的变化,采用X射线衍射仪测定了棉纤维结晶结构的变化.研究结果表明:盐酸质量分数的增加、反应温度的提高、反应时间的延长,对常压条件下棉纤维稀酸水解反应均有促进作用;固-液比的变化对水解反应的影响是综合的;水解反应伴随着棉纤维宏观形态和结晶度变化进行.研究获得了最佳反应工艺参数:盐酸质量分数9.5%、反应温度95℃、固-液比4∶100.Focused on the cotton fibre hydrolysis with dilute hydrochloric acid as catalyst. The form＇s change of cotton fiber was observed by SEM and the crystalline structure of that was determined by X-ray diffraction. Results showed that under the atmospheric conditions, thick hydrochloric acid mass fraction, high reaction temperature and long reaction time all could impromote the hydrolysis of cotton fibers effectively. The influence of the solid-liquid weight ratio on the hydrolysis reaction was proved to be eompositive, and the hydrolysis reaction was along with the change of cotton fiber form and crystallinity. Under the experimental conditions, the best process parameters were obtained as the following： the mass ratio of hydrochloric acid is 9.5 percent, the reaction temperature is 95 ℃, and the solid-liquid weight ratio is 4： 100.

关 键 词：棉纤维 稀盐酸 水解 形态变化 结晶结构变化 

分 类 号：TQ353[化学工程]