稻秆纤维素的提取及成纤可行性研究

Research of Extraction of Rice Straw Cellulose and Feasibility of Fiber Formation

稻秆主要成分是纤维素、半纤维素和木质素,是一种巨大的可再生资源,采用以不同方法从稻秆中提取的纤维素作为基础原料,并使其溶解在氯化锂/N,N-二甲基乙酰胺(Li Cl/DMAc)溶剂体系中,将获得的纺丝液挤压喷射入蒸馏水中实现凝固定型,制备再生纤维素初生纤维,并对制备的纤维素及纤维样品进行红外光谱,X-射线衍射(XRD),扫描电镜(SEM)等测试,结果表明,从稻杆中可获取较高比例的纤维素,选定适宜的优化工艺可成为制备纤维素纤维的基础材料。

Rice straw mainly consist of cellulose,hemicellulose and lignin,which is a kind of great renewable resource. Cellulose extracted from rice straw by different methods was used as a basic material and was dissolved in the lithium chloride/N,N-dimethylacetamide（ Li Cl/DMAc） solvent system. The obtained spinning solution was extruded into distilled water to realize solidification and sizing,preparing regenerated cellulose nascent fiber. Infrared spectrum（ FT-IR）,X-ray diffraction（ XRD） and scanning electron microscope（ SEM） were used to analyze the prepared cellulose and fiber samples. The results indicated that high-proportion cellulose could be gained from rice straw and cellulosic fiber could be used as a basic material through suitable optimized process.