Study on Preparation of Lignin-Containing Nanocellulose from Bamboo Parenchyma  

作　　者：Wenli Gu Shiyi Zeng Assima Dauletbek Bin Xu Xinzhou Wang Man Yuan Yanni Gu 

机构地区：[1]College of Materials Science and Engineering,Nanjing Forestry University,Nanjing,210037,China [2]College of Civil Engineering,Nanjing Forestry University,Nanjing,210037,China [3]Bamboo Engineering and Technology Research Center,State Forestry and Grassland Administration,Nanjing,210037,China

出　　处：《Journal of Renewable Materials》2022年第2期385-399,共15页可再生材料杂志（英文）

基　　金：The authors would like to thank for the financial support from the National Natural Science Foundation of China(No.31901374);Foundation of High-level Talents of Anhui Province(18030701150).

摘　　要：Bamboo vascular bundle fiber and parenchyma(BP)are separated by high-temperature treatment with saturated steam.Bamboo vascular bundle fiber is widely used in the market,but how to develop and utilize parenchyma tissue is a difficult problem.The sulfated cellulose nanofibers(ANFs)were obtained by sulfating BP with a deep eutectic solvent(DES),which provided a theoretical basis for the value-added utilization of BP.Using DES as the reaction medium and reagent,the BP was grafted with a sulfonic acid group to form a gel substance in water,ANFs and nanocellulose gel were obtained by ultrasonic cell crusher.The highest yield of ANFS was 75%.The width of the ANFs was about 3 nm,and a small number of nanofiber aggregates existed at the same time.A high aspect ratio of ANFs,due to their high viscosity,has potential applications as enhancers at low concen-trations.Lewis acid(ZnCl 2)added based on binary(DES)greatly improved the thermal stability of the ANFs and maintained the crystal form of cellulose I.

关 键 词：LIGNIN NANOCELLULOSE deep eutectic solvent BAMBOO saturated steam heat treatment PARENCHYMA 

分 类 号：O62[理学—有机化学]