Thermo-mechanical properties of epoxidized hemp oil-based bioresins and biocomposites

Manthey, Nathan W. and Cardona, Francisco and Francucci, Gaston and Aravinthan, Thiru (2013) Thermo-mechanical properties of epoxidized hemp oil-based bioresins and biocomposites. Journal of Reinforced Plastics and Composites , 32 (19). pp. 1444-1456. ISSN 0731-6844

Abstract

Novel epoxidized hemp oil-based biocomposites containing jute fibre reinforcement were produced at the Centre of Excellence in Engineered Fibre Composites (CEEFC) owing to the need to develop new types of biobased materials. Mechanical properties (tensile, flexural, Charpy impact and interlaminar shear), thermo-mechanical properties (glass transition temperature, storage modulus and crosslink density) and moisture-absorption properties (saturation moisture level and diffusion coefficient) were investigated and compared with samples containing commercially produced epoxidized soybean oil and a synthetic bisphenol A diglycidyl ether-based epoxy control, R246TX cured with a blend of triethylenetetramine and isophorone diamine. Scanning electron microscopy was also performed to investigate the fibre-matrix interface. Epoxidized hemp oil-based samples were found to have marginally superior mechanical, dynamic mechanical and similar water-absorption properties in comparison to samples made with epoxidized soybean oil bioresin; however, both sample types were limited to bioresin concentrations below 30%. Synthetic epoxy-based samples exhibited the highest mechanical, dynamic mechanical and lowest water-absorption properties of all investigated samples. This study has also determined that epoxidized hemp oil-based bioresins when applied to jute fibre-reinforced biocomposites can compete with commercially produced epoxidized soybean oil in biocomposite applications.


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Item Type: Article (Commonwealth Reporting Category C)
Refereed: Yes
Item Status: Live Archive
Additional Information: © The Author(s) 2013. Permanent restricted access to Published Version 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 Nov 2013 01:06
Last Modified: 10 Sep 2014 22:24
Uncontrolled Keywords: biocomposite; dynamic mechanical analysis; mechanical properties; moisture absorption; natural fibres
Fields of Research : 09 Engineering > 0912 Materials Engineering > 091202 Composite and Hybrid Materials
03 Chemical Sciences > 0305 Organic Chemistry > 030502 Natural Products Chemistry
10 Technology > 1003 Industrial Biotechnology > 100302 Bioprocessing, Bioproduction and Bioproducts
Socio-Economic Objective: E Expanding Knowledge > 97 Expanding Knowledge > 970109 Expanding Knowledge in Engineering
Identification Number or DOI: 10.1177/0731684413493030
URI: http://eprints.usq.edu.au/id/eprint/24249

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