Envejecimiento físico del sistema BADGE n = 0/m–XDA modificado con nanopartículas de oro y nanoarcilla
- F. Fraga
- Iria Acevedo-Maseda
- Begoña L. Castro
- E. Rodríguez-Núñez
- J. M. Martínez-Ageitos
- F. Suárez-Pereiro
- Eva Vázquez Barreiro
ISSN: 0121-6651, 1988-4206
Year of publication: 2016
Volume: 17
Issue: 5
Pages: 219-230
Type: Article
More publications in: Revista Iberoamericana de Polímeros
Abstract
The physical aging of the epoxy network consisting of a diglycidyl ether of bisphenol A (BA DGE n=0), m–xylylenediamine (m–XDA) and nanoparticles was studied by differential scanning calorimetry. The glass transition temperature (Tg) and the variation of the specific heat capacities have been calculated using the method based on the intersection of both enthalpy – temperature lines for glassy and liquid states. The apparent activation energy (EH) was calculated using a single method that involved separate temperature and excess enthalpy dependency. All calorimetric data were compared with those obtained for the epoxy network with and without different fillers.