Cure kinetics of an acrylated epoxidized hemp oil-based bioresin system

Article

Francucci, Gaston, 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. https://doi.org/10.1002/app.38380
Article Title

Cure kinetics of an acrylated epoxidized hemp oil-based bioresin system

ERA Journal ID1671
Article CategoryArticle
AuthorsFrancucci, Gaston (Author), Cardona, Francisco (Author) and Manthey, Nathan W. (Author)
Journal TitleJournal of Applied Polymer Science
Journal Citation128 (3), pp. 2030-2037
Number of Pages8
Year2013
PublisherJohn Wiley & Sons
Place of PublicationHoboken, NJ. United States
ISSN0021-8995
1097-4628
Digital Object Identifier (DOI)https://doi.org/10.1002/app.38380
Web Address (URL)http://onlinelibrary.wiley.com/doi/10.1002/app.38380/pdf
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.

Keywordsbiopolymers; renewable polymers; differential scanning calorimetry; kinetics; thermosets; resins
ANZSRC Field of Research 2020340607. Reaction kinetics and dynamics
400505. Construction materials
340399. Macromolecular and materials chemistry not elsewhere classified
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Byline AffiliationsCentre of Excellence in Engineered Fibre Composites
Institution of OriginUniversity of Southern Queensland
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