Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5203854 | Polymer Degradation and Stability | 2010 | 10 Pages |
Abstract
The presence of a significant content of fillers accelerates the degradation of ATH filled EPDM subjected to gamma irradiation at room temperature. Above the melting temperature of the EPDM, this induces a decrease in the apparent mechanical reinforcement of the fillers. This also promotes de-cohesion mechanisms which leads to an increase in the strain at break with irradiation dose. It is not clear whether the use of a filler treatment attenuates this accelerating effect or not; however, part of this treatment remains efficient at a high dose and seems also to delay but not suppress the occurrence of de-cohesion mechanisms at large strain. Moreover, at room temperature, i.e. below the melting temperature, all the consequences of ageing by gamma irradiation are strongly attenuated by the presence of a semi-crystalline microstructure, the morphology of which is not too strongly modified by irradiation.
Related Topics
Physical Sciences and Engineering
Chemistry
Organic Chemistry
Authors
Emilie Planes, Laurent Chazeau, Gérard Vigier, Jérôme Fournier, Isabelle Stevenson-Royaud,