A fully coupled diffusion-reaction scheme for moisture sorption-desorption in an anhydride-cured epoxy resin

Handle URI:
http://hdl.handle.net/10754/562391
Title:
A fully coupled diffusion-reaction scheme for moisture sorption-desorption in an anhydride-cured epoxy resin
Authors:
El Yagoubi, Jalal; Lubineau, Gilles ( 0000-0002-7370-6093 ) ; Roger, Frederic; Verdu, Jacques
Abstract:
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 the gravimetric technique to monitor water uptake by epoxy samples, with several thicknesses exposed to different levels of humidity during absorption and desorption tests. Our results revealed that the polymer displays a two-stage behavior with a residual amount of water that is desorbed progressively. We proposed a phenomenological reaction-diffusion scheme to describe this behavior. The model describes water transport as a competition between diffusion and the reaction, during which the local diffusivity and solubility depend on the local advancement of the reaction. We then implemented our model using COMSOL Multiphysics and identified it using a MATLAB-COMSOL optimization tool and the experimental data. We discussed the relation between the hydrophilicity of the product of the reaction and the diffusion behavior. We examined the reaction-induced modification of the water concentration field. It is worth noting that part of the phenomenology can be explained by the presence of hydrolyzable groups. © 2012 Elsevier Ltd. All rights reserved.
KAUST Department:
Physical Sciences and Engineering (PSE) Division; Mechanical Engineering Program; Composite and Heterogeneous Material Analysis and Simulation Laboratory (COHMAS)
Publisher:
Elsevier BV
Journal:
Polymer
Issue Date:
Nov-2012
DOI:
10.1016/j.polymer.2012.09.037
Type:
Article
ISSN:
00323861
Appears in Collections:
Articles; Physical Sciences and Engineering (PSE) Division; Mechanical Engineering Program

Full metadata record

DC FieldValue Language
dc.contributor.authorEl Yagoubi, Jalalen
dc.contributor.authorLubineau, Gillesen
dc.contributor.authorRoger, Fredericen
dc.contributor.authorVerdu, Jacquesen
dc.date.accessioned2015-08-03T10:03:34Zen
dc.date.available2015-08-03T10:03:34Zen
dc.date.issued2012-11en
dc.identifier.issn00323861en
dc.identifier.doi10.1016/j.polymer.2012.09.037en
dc.identifier.urihttp://hdl.handle.net/10754/562391en
dc.description.abstractThermoset 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 the gravimetric technique to monitor water uptake by epoxy samples, with several thicknesses exposed to different levels of humidity during absorption and desorption tests. Our results revealed that the polymer displays a two-stage behavior with a residual amount of water that is desorbed progressively. We proposed a phenomenological reaction-diffusion scheme to describe this behavior. The model describes water transport as a competition between diffusion and the reaction, during which the local diffusivity and solubility depend on the local advancement of the reaction. We then implemented our model using COMSOL Multiphysics and identified it using a MATLAB-COMSOL optimization tool and the experimental data. We discussed the relation between the hydrophilicity of the product of the reaction and the diffusion behavior. We examined the reaction-induced modification of the water concentration field. It is worth noting that part of the phenomenology can be explained by the presence of hydrolyzable groups. © 2012 Elsevier Ltd. All rights reserved.en
dc.publisherElsevier BVen
dc.subjectDiffusion-reactionen
dc.subjectEpoxyen
dc.subjectWater transporten
dc.titleA fully coupled diffusion-reaction scheme for moisture sorption-desorption in an anhydride-cured epoxy resinen
dc.typeArticleen
dc.contributor.departmentPhysical Sciences and Engineering (PSE) Divisionen
dc.contributor.departmentMechanical Engineering Programen
dc.contributor.departmentComposite and Heterogeneous Material Analysis and Simulation Laboratory (COHMAS)en
dc.identifier.journalPolymeren
dc.contributor.institutionArts & Metiers ParisTech, Lab PIMM, F-75013 Paris, Franceen
kaust.authorEl Yagoubi, Jalalen
kaust.authorLubineau, Gillesen
kaust.authorRoger, Fredericen
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