N-甲基吗啉-N-氧化物在蔗渣纤维素分离提纯中的应用

Application of N-methylmorpholine-N-oxide in the Separation and Purification of Bagasse Cellulose

采用NaOH/H_2O_2水溶液体系对蔗渣进行预处理,利用N-甲基吗啉-N-氧化物(NMMO)对预处理蔗渣进行分离提纯,得到纯度较高的再生纤维素。利用红外光谱、扫描电镜、X-射线衍射、热重分析等测试手段对制得样品结构进行了表征。

Bagasse was pretreated by NaOH/H2O2, aqueous solution. Regenerated cellulose with high purity was obtained through separation and purification by N-methylmorpholine-N-oxide （NMMO）. The structures of the prepared samples were characterized by Fourier transform infrared spectroscopy （FTIR）, scanning electron microscopy （SEM）, X-ray diffraction （XRD）, thermogravimetric analysis （TGA）.