微晶纤维素
纤维素
微晶
深共晶溶剂
材料科学
化学工程
纳米晶
溶剂
共晶体系
透射电子显微镜
复合材料
纳米技术
结晶学
化学
有机化学
微观结构
工程类
作者
Haiqiao Zhang,Yan Wu,Jilei Zhang,Wu Zhang,Xiaohong Zhan
标识
DOI:10.1016/j.indcrop.2022.115781
摘要
Cellulose nanocrystals (CNC) have been applied in many fields with excellent properties, however, efficient extraction of CNC from biomass materials remains a challenge. This study proposed and evaluated a method for preparing CNC from microcrystalline cellulose (MCC) by combining chemical hydrated deep eutectic solvent (DES) with mechanical high shear force methods. Specifically, when treatment time was increased, the yields of CNC increased from 27.2 % (0.5 h) to 65.2 % (2.5 h). The X-ray diffraction patterns indicate that the obtained CNC possesses the same type of crystal structure as the MCC (cellulose Ι). Transmission Electron Microscopy analyses determined that CNC has an average diameter of 25.1–33.3 nm and a length ranging from 281.3 nm to 404.2 nm. Moreover, the duration of treatment had no significant effect on the changes in morphology and dimension of CNC. This method is more eco-friendly than conventional hydrolysis, as well as faster than other DES treatments, which paves the way for CNC to be produced from MCC.
科研通智能强力驱动
Strongly Powered by AbleSci AI