Francucci, Gaston and Cardona, Francisco and Manthey, Nathan W. (2013) Cure kinetics of an acrylated epoxidized hemp oil-based bioresin system. Journal of Applied Polymer Science, 128 (3). pp. 2030-2037. ISSN 0021-8995
Abstract
In this work, the cure kinetics of a novel acrylated epoxidized hemp oil (AEHO)-based bioresin was investigated for the first time by differential scanning calorimetry (DSC) using both isothermal and nonisothermal conditions. This new bioresin was synthesized by the acrylation of a previously epoxidized hemp oil (EHO) bioresin. The curing of the AEHO bioresin showed an autocatalytic behavior with the vitrification phenomenon preventing the conversion reaching unity for all the temperatures studied. It was found that the curing behavior can be modeled with high accuracy using a modified Kamal autocatalytic model that takes into account the vitrification phenomenon. Dynamic activation energies were determined from the Kissinger and Ozawa–Flynn–Wall methods, resulting in 58.87 and 62.02 kJmol−1, respectively. In addition, activation energies associated with the autocatalytic model constants, k1 and k2, were established to be equal to 58.94 and 45.32 kJmol−1, respectively.
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| Item Type: | Article (Commonwealth Reporting Category C) |
|---|---|
| Refereed: | Yes |
| Item Status: | Live Archive |
| Additional Information: | Published online 13 August 2012. © 2012 Wiley Periodicals, Inc. Permanent restricted access to published version in accordance with the copyright policy of the publisher. |
| Faculty/School / Institute/Centre: | Historic - Faculty of Engineering and Surveying - Department of Mechanical and Mechatronic Engineering |
| Date Deposited: | 22 Aug 2012 03:40 |
| Last Modified: | 14 Oct 2014 22:46 |
| Uncontrolled Keywords: | biopolymers; renewable polymers; differential scanning calorimetry; kinetics; thermosets; resins |
| Fields of Research : | 03 Chemical Sciences > 0307 Theoretical and Computational Chemistry > 030703 Reaction Kinetics and Dynamics 09 Engineering > 0905 Civil Engineering > 090503 Construction Materials 03 Chemical Sciences > 0303 Macromolecular and Materials Chemistry > 030306 Synthesis of Materials |
| Socio-Economic Objective: | B Economic Development > 86 Manufacturing > 8603 Processed Non-Food Agriculture Products (excl. Wood, Paper and Fibre) > 860303 Plant Extracts (e.g. Pyrethrum, Alkaloids, Jojoba Oil) B Economic Development > 87 Construction > 8703 Construction Materials Performance and Processes > 870303 Polymeric Materials (e.g. Paints) |
| Identification Number or DOI: | 10.1002/app.38380 |
| URI: | http://eprints.usq.edu.au/id/eprint/21675 |
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