Co-oxidation kinetic model for the thermal oxidation of polyethylene-unsaturated substrate systems

Article dans une revue avec comité de lecture
Auteur
VERDU, Jacques
RYCHLÝ, Jozef
ccFAYOLLE, Bruno
86289 Laboratoire Procédés et Ingénierie en Mécanique et Matériaux [PIMM]
ccRICHAUD, Emmanuel

URI
http://hdl.handle.net/10985/8197
DOI
10.1016/j.polymdegradstab.2013.01.008
Date
2013
Journal
Polymer Degradation and Stability

Résumé

The thermal oxidation of polyethylene (PE) impregnated by the methyl esters of unsaturated fatty acids (UFEs) was studied using chemiluminescence, and infra-red spectrophotometry. It was shown that the presence of UFEs accelerates the PE aging process. This can be interpreted as a co-oxidation phenomenon. In this study, the previously established models for PE and UFEs self-oxidation have been coupled in order to develop a co-oxidation model. Using the existing rate constants for the PE and UFEs selfoxidations, this model can simulate the complex shape of the kinetic curves of PE-UFE co-oxidation

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