Thermosets Synthesized by Metathesis: Multiscale Lifetime Approach

Type Article
Date 2019
Language English
Author(s) Richaud Emmanuel1, Huang Jing1, Le Gac Pierre YvesORCID2
Affiliation(s) 1 : CNRS, Cnam, Arts & Metiers, Lab PIMM, 151 Blvd Hop, F-75013 Paris, France.
2 : IFREMER, Serv Mat & Struct, Ctr Brest, BP70, F-29280 Plouzane, France.
Meeting 9th International Conference on Structural Analysis of Advanced Materials (ICSAAM). SEP 12-14, 2019, , Naples, ITALY
Source AIP Conference Proceedings (0094-243X) (Amer Inst Physics), 2019 , Vol. 2196 , P. 020034 (4p.)
DOI 10.1063/1.5140307

This paper addresses the lifetime prediction of polydicyclopentadiene submitted to thermal oxidation, using a multiscale approach. The chemical changes monitored by FTIR revealed the depletion in double bonds and the appearance of carbonyls. Such molecular changes result in the drop of mechanical properties. A kinetic model was implemented to predict the degradation rate depending on external conditions (temperature, oxygen concentration). This model can be completed to take into account the effect of antioxidants (delaying the thermal degradation) and the oxygen diffusion effects (heterogenous degradation) so as to get closer of real cases.

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