A facile ionic liquid approach to prepare cellulose fiber with good mechanical properties directly from corn stalks

作     者：Jiming Yang Xingmei Lu Yanqiang Zhang Junli Xu Yongqing Yang Qing Zhou Jiming Yang;Xingmei Lu;Yanqiang Zhang;Junli Xu;Yongqing Yang;Qing Zhou

作者机构：Beijing Key Laboratory of Ionic Liquids Clean ProcessCAS Key Laboratory of Green Process and EngineeringState Key Laboratory of Multiphase Complex SystemsInstitute of Process EngineeringChinese Academy of SciencesBeijing100190China School of Chemical EngineeringUniversity of Chinese Academy of SciencesBeijing100049China 

出 版 物：《Green Energy & Environment》 (绿色能源与环境（英文版）)

年 卷 期：2020年第5卷第2期

页      面：223-231页

核心收录：

学科分类：08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学] 

基　　金：This research was financially supported by the National Natural Science Foundation of China(No.21878292,No.21606240,No.21878314) K.C.Wong Education Foundation(No.GJTD-2018-04) the Strategic Priority Research Program of Chinese Academy of Science(No.XDA21060300) 

主　　题：Cellulose fibers Ionic liquids Corn stalks Dissolving Directly spinning 

摘      要：It is very difficult to directly spin the lignocellulose without *** liquids(ILs)are promising solvent to dissolve lignocellulose to prepare cellulose ***,the degree of cellulose polymerization(DP)is reduced when lignocellulose is dissolved in ILs,and the lignin removal rate is *** elongation at break and tensile strength of the fibers obtained by spinning the lignocellulose dissolved in ILs are *** this paper,preparing cellulose fiber directly from lignocellulose based on dissolving corn stalk via[C4mim]Cl-L-arginine binary system is *** shows that the removal rate of lignin can reach 92.35%and the purity of cellulose can reach 85.32%after corn stalk was dissolved at 150℃C for 11.5 h when the mass fraction of arginine is 2.5%.The elongation at break of fiber reached 10.12%and the tensile strength reached 420 *** is mainly due to the fact that L-arginine not only inhibits the degradation of cellulose but also promotes the *** any pulping or pretreatment,preparing cellulose fibers via direct dissolution and extrusion may provide a simple and effective way to prepare many novel cellulose materials.