Monitoring and simulations of hydrolysis in epoxy matrix composites during hygrothermal aging

Article dans une revue avec comité de lecture
Auteur
EL YAGOUBI, Jalal
19229 Laboratoire des Composites Thermostructuraux [LCTS]
LUBINEAU, Gilles
104346 King Abdullah University of Science and Technology [Saudi Arabia] [KAUST]
TRAIDIA, Abderrazak
104346 King Abdullah University of Science and Technology [Saudi Arabia] [KAUST]
VERDU, Jacques
86289 Laboratoire Procédés et Ingénierie en Mécanique et Matériaux [PIMM]

URI
http://hdl.handle.net/10985/8969
DOI
10.1016/j.compositesa.2014.10.002
Date
2014
Journal
Composites Part A: Applied Science and Manufacturing

Résumé

In this paper, we studied the water transport in thermoset matrices. We used Fourier Transform Infrared analysis (FTIR) during sorption/desorption experiments to investigate the interaction between sorbed water and the epoxy network. Our results demonstrated that the polymer matrix undergoes hydrolysis. We found that the chemical species involved in the reaction process was the residual anhydride groups. These results support the physical basis of the three-dimensional (3D) diffusion/reaction model. We finally showed that this model is able to reproduce multi-cycle sorption/desorption experiment, as well as water uptake in hybrid metal/epoxy samples. We simulated the 3D distributions of the diffusing water and the reacted water.

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