Monitoring and simulations of hydrolysis in epoxy matrix composites during hygrothermal aging
TypeArticles dans des revues avec comité de lecture
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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A fully coupled diffusion-reaction scheme for moisture sorptionedesorption in an anhydride-cured epoxy resin EL YAGOUBI, Jalal; LUBINEAU, Gilles; ROGER, Frederic; VERDU, Jacques (ELSEVIER, 2012)Thermoset materials frequently display non-classical moisture sorption behaviors. In this paper, we investigated this issue from an experimental point of view as well as in terms of modeling the water transport. We used ...
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