Thèse soutenue

FR  |  
EN
Accès à la thèse
Auteur / Autrice : Feliks Bezati
Direction : Daniel FroelichValérie Massardier-Nageotte
Type : Thèse de doctorat
Discipline(s) : Matériaux polymères
Date : Soutenance en 2010
Etablissement(s) : Lyon, INSA
Ecole(s) doctorale(s) : Ecole Doctorale Matériaux de Lyon (Villeurbanne)
Partenaire(s) de recherche : Laboratoire : Ingénierie des Matériaux Polymères (Auvergne Rhône-Alpes ; 2007-....) - Laboratoire Conception de Produits et Innovation (LCPI) - Laboratoire Imagerie, Tomographie et Traitement (Saclay)

Mots clés

FR

Mots clés contrôlés

Résumé

FR  |  
EN

Rare earth oxides can be used as tracers for the identification of polymer materials in order to have an economically efficient recycling and high speed automatic sorting of plastic wastes. This study focused on the detection of these particles by X-ray fluorescence spectrometry and their effect on PP matrix with respect to thermal and mechanical properties and to photo-degradation under UV irradiation exposure. Addition of 1000 ppm of such particles, of micrometric size, has a minor effect on the mechanical and thermal properties of the traced materials as well as in the photo-degradation of the polymer after UV irradiation exposure. The SEM images together with the results obtained from image processing show a homogenous dispersion of tracers into PP matrix. Regarding their detection by X-ray fluorescence spectrometry, experimental and modeling results have shown that the rare earth oxides studied could be detected in a range [100-1000 ppm] for 10 ms acquisition time.