Preparation and Fundamental Characterization of Cellulose Nanocrystal from Oil Palm Fronds Biomass

被引：40
|
作者：
Dungani, Rudi [1 ]
Owolabi, Abdulwahab F. [2 ,3 ]
Saurabh, Chaturbhuj K. [2 ]
Khalil, H. P. S. Abdul [2 ,4 ]
Tahir, Paridah M. [4 ]
Hazwan, C. I. C. M. [2 ]
Ajijolakewu, Kamoldeen A. [2 ,3 ,5 ]
Masri, M. M. [2 ]
Rosamah, E. [6 ]
Aditiawati, P. [1 ]
机构：
[1] Inst Teknol Bandung, Sch Life Sci & Technol, Gandung Labtex 11, Bandung, Indonesia
[2] Univ Sains Malaysia, Sch Ind Technol, George Town 11800, Malaysia
[3] Fed Inst Ind Res Oshodi, Lagos, Nigeria
[4] Univ Putra Malaysia, Lab Biocomposite Technol, Inst Trop Forestry & Forest Prod, Serdang, Malaysia
[5] Univ Ilorin, Dept Microbiol, Ilorin, Nigeria
[6] Mulawarman Univ, Fac Forestry, Campus Gunung Kelua, Samarinda 75119, East Kalimantan, Indonesia
来源：
JOURNAL OF POLYMERS AND THE ENVIRONMENT | 2017年 / 25卷 / 03期
关键词：
Nanocrystalline cellulose; Total chlorine free bleaching; Oil palm fronds; Thermal properties; X-ray diffraction; Fourier transform infrared spectroscopy; CHEMICAL-COMPOSITION; EXTRACTION; FIBERS; POLYSACCHARIDES; DELIGNIFICATION; PRETREATMENT; ALKALINE; CLEAVAGE; HUSK; PULP;
D O I：
10.1007/s10924-016-0854-8
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
The objective of this work was to isolate cellulose nanocrystal (CNC) from oil palm fronds (Elaeis guineensis) and its subsequent characterization. Isolation involves sodium hydroxide/anthraquinone pulping with mechanical refining followed by total chlorine free bleaching (includes oxygen delignification, hydrogen peroxide oxidation and peracetic acid treatment) before acid hydrolysis. Bleaching significantly decreased kappa number and increased alpha-cellulose percentage of fibers as confirmed by Technical Association of the Pulp and Paper Industry standards. Transmission electron microscopy (TEM), X-ray diffraction, Fourier transform infrared spectroscopy and thermogravimetric analysis revealed that acid hydrolysis along with bleaching improved crystallinity index and thermal stability of the extracted nanocrystals. It was observed that CNC maintained its cellulose 1 polymorph despite hydrolysis treatment. Mean diameter as observed by TEM and average fiber aspect ratio of obtained CNC was 7.44 +/- 0.17 nm and 16.53 +/- 3.52, respectively making it suitable as a reinforcing material for nanocomposite.
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页码：692 / 700
页数：9
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