Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/55063
Title: Effects of chemical treatments on hemp fibre structure
Authors: Lau, KT 
Kabir, MM
Wang, H
Cardona, F
Keywords: Hemp fibre
Chemical treatments
Fibre constituents
Thermal analysis
Issue Date: 2013
Publisher: North-Holland
Source: Applied surface science, 2013, v. 276, p. 13-23 How to cite?
Journal: Applied surface science 
Abstract: In this study, hemp fibres were treated with alkali, acetyl and silane chemicals. Fibre constituents such as cellulose, hemicellulose and lignin constituents were separated from treated fibres. The chemical and thermal influences of these constituents on the treated fibres were examined by using scanning electron microscope (SEM), fourier transform infrared (FTIR) spectroscopy, thermogravimetric analysis (TGA), and differential scanning calorimetry (DSC). Experimental results revealed that, hemicellulose was degraded faster than that of cellulose and lignin. Cellulose exhibited better thermal stability and lignin was degraded in a wide range of temperatures. The hydrophilic nature of the fibres was predominantly caused by the presence of hemicellulose and then lignin constituents. Hemicellulose and lignin were mostly removed by the alkalisation with higher concentrations of NaOH, followed by acetylation. Silane treatment could not remove the hemicellulose and lignin, rather this treatment facilitated coupling with the fibre constituents.
URI: http://hdl.handle.net/10397/55063
ISSN: 0169-4332
EISSN: 1873-5584
DOI: 10.1016/j.apsusc.2013.02.086
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