Aging behavior and modeling studies of unsaturated polyester resin and unsaturated polyester resin-based blends
Chapitre d'ouvrage scientifique
Résumé
This chapter deals with various cases of degradation of unsaturated polyester resin (UPR)-based materials (composites with polyester matrices and polyester interpenetrated networks). The consequences of degradation mainly on mechanical and engineering properties are presented from a structure-relationships point of view. Two main kinds of mechanisms are presented, namely physical (chemicals and water penetration) and chemical mechanisms (hydrolysis, radiolysis, photolysis and photooxidation, and thermal oxidation) together with experimental trackers, existing kinetic models, and some of their available parameters. It seems in particular that the lifetime prediction of UPR-based materials submitted to chemical aging remains an open issue due to the nonideality of networks.
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- PIMM_UPR_2019_RICHAUD.pdf
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- 2.230Mo
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- Chapitres d'ouvrages
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Documents liés
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Article dans une revue avec comité de lectureOKAMBA-DIOGO, Octavie; VERDU, Jacques; FERNAGUT, François; GUILMENT, Jean; FAYOLLE, Bruno; RICHAUD, Emmanuel (Elsevier, 2014)The present article reports a study of thermal oxidation of unstabilized polyamide 11 films at several temperatures (90–165 °C) under atmospheric pressure and under various oxygen pressures (up to 1.6 MPa) at 110 °C. The ...
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Article dans une revue avec comité de lectureFERREIRA, Paulo; AUDOUIN, Ludmila; VERDU, Jacques; MONCHY-LEROY, Carole; COLIN, Xavier; RICHAUD, Emmanuel (Elsevier, 2010)Thin (60 μm) and thick (250 μm) samples of poly(ether ether ketone) were subjected to radiochemical ageing at 24 kGy h -1 dose rate for doses up to 30.7 MGy at 60 °C in air. FTIR spectrophotometry (hydroxyl and carbonyl ...
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Article dans une revue avec comité de lectureOKAMBA-DIOGO, Octavie; VERDU, Jacques; FERNAGUT, François; GUILMENT, Jean; FAYOLLE, Bruno; RICHAUD, Emmanuel (Elsevier, 2016)Embrittlement processes occurring during thermal oxidation are investigated for stabilized and unstabilized polyamide 11 samples differing by their thicknesses and initial molar masses. Tensile tests were carried out in ...
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Article dans une revue avec comité de lectureOKAMBA-DIOGO, Octavie; VERDU, Jacques; FERNAGUT, François; GUILMENT, Jean; FAYOLLE, Bruno; RICHAUD, Emmanuel (Elsevier, 2015)The oxidation kinetics of unstabilized polyamide 11 thin film under oxygen pressures up to 2.0 MPa was studied by means of ferrous ion method for hydroperoxides titration, size exclusion chromatography (SEC) for molar weight ...
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Article dans une revue avec comité de lectureAUDOUIN, Ludmila; VERDU, Jacques; FAYOLLE, Bruno; COLIN, Xavier; RICHAUD, Emmanuel (EDP Sciences, 2010)It has been supposed, for a long time, that kinetic modelling of polymer ageing for nonempirical lifetime prediction was out of reach for two main reasons: hypercomplexity of mechanisms and heterogeneity of reactions. The ...