Journal
RADIATION PHYSICS AND CHEMISTRY
Volume 76, Issue 8-9, Pages 1308-1311Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.radphyschem.2007.02.021
Keywords
E-beam irradiation; epoxy-thermoplastic blends; composites
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In this work, blends of a difunctional epoxy monomer and a thermoplastic toughening agent are E-beam irradiated at two different dose rates and two different total absorbed doses. The influence of the processing conditions on the thermal properties and on the morphology of the obtained matrices has been investigated. In particular, it is shown how the increase of the dose rate causes an increase of the temperature during irradiation, thus inducing a simultaneous thermal and radiation curing. On the contrary, at low-dose rate the system mainly undergoes to radiation curing, thus making the cured material very sensible to a post-irradiation thermal treatment with a significant improvement of the thermal properties. (c) 2007 Elsevier Ltd. All rights reserved.
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