| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 5202920 | Polymer Degradation and Stability | 2011 | 7 Pages |
Abstract
Fracture toughness tests showed an increase of the KIC value with the increase of the toughening agent concentration, revealing both a dramatic decrease of the same parameter after 1 week ageing for all the materials and the tendency to reach an almost constant value after 1 month ageing for all the formulations, with a slight increase with respect to 1 week ageing. These results have been interpreted on the basis of the SEM analysis, showing the presence of a well defined micrometric PES particles distribution in the epoxy/anhydride matrix, and discussed in the light of different water absorption mechanisms at short and long ageing times.
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Authors
S. Alessi, D. Conduruta, G. Pitarresi, C. Dispenza, G. Spadaro,