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Radio-oxidation ageing of XLPE containing different additives and fillers: effect on the gases emission and consumption

Muriel Ferry 1, * Floriane Carpentier 1 Manon Cornaton 1 
* Corresponding author
1 LRMO - Laboratoire de Radiolyse et de la Matière Organique
SECR - Service d'Etudes du Comportement des Radionucléides : DEN/DPC
Abstract : In the lifetime extension of nuclear power plants (NPPs) context, aging of electric cables has to be very well understood in order to predict their end-of-life and thus to replace them on time. Therefore, evaluation and understanding of the ageing mechanism of the cable insulating material is mandatory under conditions as close as possible of those encountered in NPPs. In this context, different formulated crosslinked polyethylenes (XLPE)—one of the polymers used nowadays to manufacture the insulator layer—have been irradiated under oxidative conditions, at two different dose rates and at different aging doses. Gases emitted and consumed from the irradiated polymers were quantified to identify the primary processes happening in the materials and thus the interactions involved between the different molecules composing the formulated polymers
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Submitted on : Wednesday, January 19, 2022 - 2:54:10 PM
Last modification on : Friday, January 21, 2022 - 4:05:38 AM
Long-term archiving on: : Wednesday, April 20, 2022 - 6:50:53 PM

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Muriel Ferry, Floriane Carpentier, Manon Cornaton. Radio-oxidation ageing of XLPE containing different additives and fillers: effect on the gases emission and consumption. Polymers, MDPI, 2021, 13 (17), pp.2845. ⟨10.3390/polym13172845⟩. ⟨cea-03534309⟩

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