Role of Temperature During Ageing Under Gamma Irradiation of Filled EPDM: Consequences on Mechanical Properties
Résumé
Filled EPDM materials have been processed and aged by gamma radiation at ambient temperature and at 80 degrees C to study the influence of the fillers presence in the material degradation. The acceleration of the polymer degradation by the ATH fillers, evidenced when irradiation is performed at 25 degrees C, is also effective at 80 degrees C. In addition, in the case of silica-filled EPDM, the creation of strong filler-matrix bonds, already reported for irradiation at 25 degrees C, is also thermally activated; this enables to this material to keep its integrity at high irradiation dose, whereas the irradiated ATH-filled EPDM is so degraded that it flows. Thus, the introduction of fillers in the polymer has an impact on its resistance to irradiation, whatever the temperature at which the irradiation is performed. Moreover, the consequences of the degradation on the evolution of the mechanical properties of the composite are very dependent on the filler nature.
Fichier principal
Article_PLANES_corrected_260210.pdf (282.65 Ko)
Télécharger le fichier
Figures_PLANES_corrected_190210.pdf (1.03 Mo)
Télécharger le fichier
Tables_PLANES_corrected_190210.pdf (94.84 Ko)
Télécharger le fichier
Origine : Fichiers produits par l'(les) auteur(s)
Origine : Fichiers produits par l'(les) auteur(s)
Origine : Fichiers produits par l'(les) auteur(s)