Effect of chemical treatment on the mechanical and thermal properties of hemp fibre reinforced thermoset sandwich composites

Kabir, M. M. and Wang, H. and Cardona, F. and Aravinthan, T. (2011) Effect of chemical treatment on the mechanical and thermal properties of hemp fibre reinforced thermoset sandwich composites. In: ACMSM 21: Incorporating Sustainable Practice in Mechanics of Structures and Materials, 7-10 Dec 2010, Melbourne, Australia.

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Abstract

In this study hemp-thermoset sandwich composites were prepared by using unsaturated polyester resin. To improve fibre matrix adhesion alkalization and acetylation treatment on the fibres were carried out. Differential scanning calorimetry (DSC) and thermogravimetric analysis (TGA) were used to investigate the changes of fibres chemical constituents after treatment. Mechanical properties such as flexural strength, flexural modulus and strain at break of untreated and treated fibre composites were studied and compared. The incorporation of the alkalized fibres resulted in composites better flexural properties and 8% treatment showed best results. Thermal stability of the fibre was also enhanced for the treated fibre. In general, thermal and mechanical properties of the treated fibre and its composites were superior to the untreated fibres.


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Item Type: Conference or Workshop Item (Commonwealth Reporting Category E) (Paper)
Refereed: Yes
Item Status: Live Archive
Additional Information: Accepted version deposited in accordance with the copyright policy of the publisher.
Depositing User: Dr Hao Wang
Faculty / Department / School: Historic - Faculty of Engineering and Surveying - Department of Mechanical and Mechatronic Engineering
Date Deposited: 21 Apr 2011 05:37
Last Modified: 03 Jul 2013 00:32
Uncontrolled Keywords: hemp thermoset sandwich composites; flexural tests; natural fibres; renewable resources; bast fibre; structural materials
Fields of Research (FOR2008): 09 Engineering > 0912 Materials Engineering > 091202 Composite and Hybrid Materials
09 Engineering > 0912 Materials Engineering > 091209 Polymers and Plastics
09 Engineering > 0912 Materials Engineering > 091205 Functional Materials
Socio-Economic Objective (SEO2008): E Expanding Knowledge > 97 Expanding Knowledge > 970109 Expanding Knowledge in Engineering
Identification Number or DOI: doi: 10.1201/b10571-78
URI: http://eprints.usq.edu.au/id/eprint/18569

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