Processing and characterization of 100% hemp-based biocomposites obtained by vacuum infusion

Francucci, G. and Manthey, N. W. and Cardona, F. and Aravinthan, T. (2014) Processing and characterization of 100% hemp-based biocomposites obtained by vacuum infusion. Journal of Composite Materials, 48 (11). pp. 1323-1335. ISSN 0021-9983

Abstract

Novel biocomposites made of an acrylated epoxidized hemp oil based bioresin reinforced with random hemp fiber mat were manufactured by the vacuum infusion technique. Mechanical properties (tensile, flexural, Charpy impact and interlaminar shear), dynamic 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 manufactured under the same conditions but using a commercial synthetic vinylester resin as the polymeric matrix. Results showed that the 100% biocomposites mechanical performance is comparable to that of the hybrid composites made with the synthetic resin. Moisture absorption tests showed that acrylated epoxidized hemp oil based samples displayed both higher diffusion coefficient and saturation moisture content; however, fiber reinforcement was the dominant transfer mechanism. Vinyl ester based samples were found to have higher storage modulus, glass transition temperature and crosslink density than acrylated epoxidized hemp oil samples.


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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 due to publisher copyright policy.
Faculty / Department / School: Current - Faculty of Health, Engineering and Sciences - School of Mechanical and Electrical Engineering
Date Deposited: 25 May 2014 22:44
Last Modified: 04 Jul 2016 04:50
Uncontrolled Keywords: biocomposite; dynamic mechanical analysis; mechanical properties; moisture absorption; natural fibers
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: B Economic Development > 87 Construction > 8703 Construction Materials Performance and Processes > 870399 Construction Materials Performance and Processes not elsewhere classified
Identification Number or DOI: 10.1177/0021998313485266
URI: http://eprints.usq.edu.au/id/eprint/25240

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