A FACILE ISOLATION METHOD OF CELLULOSE NANOCRYSTALS FROM MICROCRYSTALLINE CELLULOSE

被引：0

作者：

Lee, Byoung-Min ^{[1
]}

Kim, Du-Yeong ^{[1
]}

Jeun, Joon-Pyo ^{[1
]}

Kang, Phil-Hyun ^{[1
]}

Hong, Sung-Kwon ^{[2
]}

机构：

[1] Korea Atom Energy Res Inst, Res Div Ind & Environm, 29 Geumgu Gil, Jeongeup Si 580185, Jeollabuk Do, South Korea

[2] Chungnam Natl Univ, Dept Polymer Sci & Engn, 99 Daehangno, Taejon 305764, South Korea

来源：

CELLULOSE CHEMISTRY AND TECHNOLOGY | 2016年 / 50卷 / 9-10期

关键词：

electron beam; microcrystalline cellulose; nanocellulose; cellulose nanocrystal; acid hydrolysis; ELECTRON-BEAM; CRYSTALLINITY; NANOCELLULOSE; OPTIMIZATION; HYDROLYSIS; MORPHOLOGY; FIBERS;

D O I：

暂无

中图分类号：

TB3 [工程材料学]; TS [轻工业、手工业、生活服务业];

学科分类号：

0805 ; 080502 ; 0822 ;

摘要：

In this study, we investigated an effective isolation method of cellulose nanocrystals (CNCs) from commercial microcrystalline cellulose (MCC) using electron beam irradiation (EBI). The EBI of the MCC was performed at various doses ranging from 50 to 200 kGy, and then MCC was hydrolyzed with 65% sulfuric acid at 45 in a pre-heatedoven for 30, 60, 90, and 120 min. The hydrolysate of MCC was characterized using gel permeation chromatography (GPC), a particle size analyzer, X-ray diffraction (XRD), thermogravimetric analysis (TGA), and transmission electron microscopy (TEM). CNCs of virgin MCC were obtained with a 44% yield, 319 nm average particle size, and 78.2% crystallinity index after 120 min of acid-hydrolysis. However, CNCs isolated from 50 kGy irradiated MCC were obtained with 51% yield, 330 nm average particle Size, and 80.2% crystallinity after 30 min of acid-hydrolysis. In addition, TEM morphology analysis clearly showed the isolation of rod-like shaped CNCs.

引用

页码：937 / 940

页数：4

共 17 条

[1] Optimization of the isolation of nanocrystals from microcrystalline cellulose by acid hydrolysis [J].