| Issue |
MATEC Web Conf.
Volume 80, 2016
NUMIFORM 2016: The 12th International Conference on Numerical Methods in Industrial Forming Processes
|
|
|---|---|---|
| Article Number | 16007 | |
| Number of page(s) | 5 | |
| Section | Topic 4: Application to composites, polymers and other materials | |
| DOI | https://doi.org/10.1051/matecconf/20168016007 | |
| Published online | 24 October 2016 | |
Determination of the activation energy of silicone rubbers using different kinetic analysis methods
FEMTO-ST Institute / Applied Mechanics Department, 24 rue de l’Epitaphe, 25000 Besançon, France
a Corresponding author: thierry.barriere@univ-fcomte.fr
The solidification of silicone rubbers is a crosslinking reaction called vulcanization. It follows that the physical and mechanical properties of silicone rubbers increase significantly due to the growth of molecular weight and were affected strongly by the vulcanization process, such as the temperatures and times for curing. In this study, the kinetics of the crosslinking reaction of silicone rubbers was investigated by two current techniques: differential scanning calorimeter (DSC) and oscillating disk rheometry (ODR). From the kinetic experimental data, different kinetic analysis methods were used to determine the activation energy of silicone rubbers, such as the Kissinger, the Ozawa, the Friedman, the Flynn-Wall-Ozawa, the Kissinger-Akahira-Sunose and the integral methods. The results show the influence of the chemical composition of silicone rubbers, the current technique used and the applied kinetic analysis methods on the activation energy and the evolution of activation energy during the crosslinking reaction.
© The Authors, published by EDP Sciences, 2016
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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