Cure kinetic study of epoxidized hemp oil cured with a multiple catalytic system
Article
Manthey, Nathan W., Cardona, Francisco and Aravinthan, Thiru. 2012. "Cure kinetic study of epoxidized hemp oil cured with a multiple catalytic system." Journal of Applied Polymer Science. 125 (S2), pp. E511-E517. https://doi.org/10.1002/app.35561
| Article Title | Cure kinetic study of epoxidized hemp oil cured with a multiple catalytic system |
|---|---|
| ERA Journal ID | 1671 |
| Article Category | Article |
| Authors | Manthey, Nathan W. (Author), Cardona, Francisco (Author) and Aravinthan, Thiru (Author) |
| Journal Title | Journal of Applied Polymer Science |
| Journal Citation | 125 (S2), pp. E511-E517 |
| Number of Pages | 7 |
| Year | 2012 |
| Publisher | John Wiley & Sons |
| Place of Publication | United States |
| ISSN | 0021-8995 |
| 1097-4628 | |
| Digital Object Identifier (DOI) | https://doi.org/10.1002/app.35561 |
| Web Address (URL) | https://onlinelibrary.wiley.com/doi/10.1002/app.35561 |
| Abstract | The cure kinetics of two epoxidized hemp oil (EHO) based bioresins were studied and compared under both dynamic and isothermal conditions using differential scanning calorimetry (DSC). Neat triethylenetetramine (TETA) for the first system and a combination of isophorone diamine (IPD) and TETA for the second system were used as the hardeners for the two EHO-based bioresins. Lower total heats of reaction and an approximate 10% decrease in activation energies were observed for the IPD/TETA system. Maximum conversions of the TETA/IPD system were consistently higher than those of the TETA system throughout the entire temperature range suggesting enhanced curing characteristics. Kissinger and Ozawa–Flynn–Wall models were used to determine activation energies from dynamic DSC data. Both bioresin systems were found to display autocatalytic behavior with the TETA/IPD system showing high nth order influence. Kamal's autocatalytic isothermal model, modified to account for diffusion postvitrification was found to satisfactorily describe the cure behavior of both bioresin systems. Overall, the addition of IPD was found to increase the curing rate of the EHO bioresin systems. |
| Keywords | biopolymers; curing of polymers; differential scanning calorimetry (DSC); kinetics (polym.); renewable resources |
| Contains Sensitive Content | Does not contain sensitive content |
| ANZSRC Field of Research 2020 | 340607. Reaction kinetics and dynamics |
| 400505. Construction materials | |
| 340399. Macromolecular and materials chemistry not elsewhere classified | |
| Public Notes | Files associated with this item cannot be displayed due to copyright restrictions. |
| Byline Affiliations | Centre of Excellence in Engineered Fibre Composites |
| Institution of Origin | University of Southern Queensland |
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