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 

作者机构：College of Materials Science and EngineeringNanjing Forestry UniversityNanjing210037China College of Civil EngineeringNanjing Forestry UniversityNanjing210037China Bamboo Engineering and Technology Research CenterState Forestry and Grassland AdministrationNanjing210037China 

出 版 物：《Journal of Renewable Materials》 (可再生材料杂志（英文）)

年 卷 期：2022年第10卷第2期

页      面：385-399页

核心收录：

学科分类：0830[工学-环境科学与工程（可授工学、理学、农学学位）] 07[理学] 070303[理学-有机化学] 0706[理学-大气科学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0703[理学-化学] 

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). 

主　　题：Lignin nanocellulose deep eutectic solvent bamboo saturated steam heat treatment parenchyma 

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.