Effects of chemical treatments on hemp fibre structure

Kabir, M. M. and Wang, H. and Lau, K. T. and Cardona, F. (2013) Effects of chemical treatments on hemp fibre structure. Applied Surface Science , 276. pp. 13-23. ISSN 0169-4332

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.


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Item Type: Article (Commonwealth Reporting Category C)
Refereed: Yes
Item Status: Live Archive
Additional Information: © 2013 Elsevier B.V. Published version deposited in accordance with the copyright policy of the publisher.
Faculty / Department / School: Current - Faculty of Health, Engineering and Sciences - School of Mechanical and Electrical Engineering
Date Deposited: 11 Jul 2013 04:51
Last Modified: 11 Jan 2018 04:36
Uncontrolled Keywords: chemical treatments; fibre constituents; hemp fibre; thermal analysis
Fields of Research : 09 Engineering > 0912 Materials Engineering > 091202 Composite and Hybrid Materials
03 Chemical Sciences > 0306 Physical Chemistry (incl. Structural) > 030602 Chemical Thermodynamics and Energetics
03 Chemical Sciences > 0305 Organic Chemistry > 030502 Natural Products Chemistry
Socio-Economic Objective: B Economic Development > 87 Construction > 8703 Construction Materials Performance and Processes > 870399 Construction Materials Performance and Processes not elsewhere classified
Identification Number or DOI: 10.1016/j.apsusc.2013.02.086
URI: http://eprints.usq.edu.au/id/eprint/23726

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