沙柳纳米纤维素的制备及表征  

Preparation and characterization of salix nanocellulose

作　　者：张菲然 黄金田[1] ZHANG Fei-ran;HUANG Jin-tian(College of Material Science and Art Design,Inner Mongolia Agriculture University,Hohhot 010018,China)

机构地区：[1]内蒙古农业大学材料科学与艺术设计学院,内蒙古呼和浩特010018

出　　处：《应用化工》2018年第12期2599-2601,共3页Applied Chemical Industry

基　　金：国家科技支撑计划(2015BAC06B00)

摘　　要：以沙柳纤维素为原材料,用氢氧化钠/尿素体系溶解再生的方法制备沙柳纳米纤维素,采用SEM观察微观形貌,用纳米粒度仪分析粒径,采用XRD分析结晶情况,采用FTIR分析表面官能团。结果表明,制得的沙柳纳米纤维素为类球状,平均粒径110 nm,沙柳纳米纤维素为纤维素Ⅱ型结构,结晶度53. 9%,表面存在大量的羟基。Salix nanocellulose was prepared from salix cellulose by NaOH/thiourea system.The morphology of the obtained salix nanocellulose were characterized by SEM.The particle size distribution of salix nanocellulose was determined using dynamic light scattering.The structure and crystal structure of salix nanocellulose was characterized by FTIR and XRD,respectively.The results revealed that the average size of salix nanocellulose was 110 nm,a large number of hydroxyl groups was observed in the surface of salix nanocellulose.The crystallinity index of the nanocellulose is 53.9%.The salix nanocellulose possesses cellulose Ⅱ type crystal structure.

关 键 词：沙柳 纳米纤维素 氢氧化钠/尿素体系 Ⅱ型纤维素 

分 类 号：TQ352[化学工程] S781.43[农业科学—木材科学与技术]