Cellulose nanocrystals isolated from oil palm trunk

被引：153
作者：
Lamaming, Junidah [1 ]
Hashim, Rokiah [1 ]
Sulaiman, Othman [1 ]
Leh, Cheu Peng [1 ]
Sugimoto, Tomoko [2 ]
Nordin, Noor Afeefah [1 ]
机构：
[1] Univ Sains Malaysia, Sch Ind Technol, Div Bioresource Paper & Coatings Technol, Minden 11800, Penang, Malaysia
[2] Forestry & Forest Prod Res Inst, Tsukuba, Ibaraki 3058687, Japan
来源：
CARBOHYDRATE POLYMERS | 2015年 / 127卷
关键词：
Cellulose nanocrystals; Oil palm trunk; Raw fibers; Hot water treated fibers; Thermal properties; Crystallinity; MICROCRYSTALLINE CELLULOSE; CHEMICAL-COMPOSITION; FIBERS; MICROFIBRILS; NANOFIBRILS; EXTRACTION; STARCH;
D O I：
10.1016/j.carbpol.2015.03.043
中图分类号：
O69 [应用化学];
学科分类号：
081704 ;
摘要：
In this study cellulose nanocrystals were isolated from oil palm trunk (Elaeis guineensis) using acid hydrolysis method. The morphology and size of the nanocrystals were characterized using scanning electron microscopy and transmission electron microscopy. The results showed that the nanocrystals isolated from raw oil palm trunk (OPT) fibers and hot water treated OPT fibers had an average diameter of 7.67 nm and 7.97 nm and length of 397.03 nm and 361.70 nm, respectively. Fourier Transform Infrared spectroscopy indicated that lignin and hemicellulose contents decreased. It seems that lignin was completely removed from the samples during chemical treatment. Thermogravimetric analysis demonstrated that cellulose nanocrystals after acid hydrolysis had higher thermal stability compared to the raw and hot water treated OPT fibers. The X-ray diffraction analysis increased crystallinity of the samples due to chemical treatment. The crystalline nature of the isolated nanocrystals from raw and hot water treated OPT ranged from 68 to 70%. (C) 2015 Elsevier Ltd. All rights reserved.
引用
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页码：202 / 208
页数：7
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