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The use of POSS as synergist in intumescent recycled poly(ethylene terephthalate) |
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| Authors: | A Vannier S Bourbigot G Camino |
| Institution: | a Centre de Recherche et d'Etude sur les Procédés d'Ignifugation des Matériaux (CREPIM), Parc de la porte Nord, F-62200 Bruay-la-Buissière, France b Laboratoire des Procédés d'Elaboration de Revêtements Fonctionnels (PERF), UMR-CNRS 8008/LSPES - Ecole Nationale Supérieure de Chimie de Lille, BP 90108, F-59652 Villeneuve d'Ascq, France c Centro di Cultura per l'Ingegneria delle Materie Plastiche - Politechnico di Torino, Viale T. Michel, 5 - 15100 Alessandria, Italy |
| Abstract: | Fire retarded poly(ethylene terephthalate) (PET) has been obtained by the incorporation of octamethyl polyhedral oligomeric silsesquioxane (OMPOSS) and Exolit OP950, a phosphinate-based compound, in recycled PET. The presence of Exolit OP950 only leads to intumescence explaining the improvement of the flame retardancy. The addition of OMPOSS leads to a synergistic effect considerably increasing the fire retarding performances of the polymer in terms of cone calorimetry and limiting oxygen index even if a small thermal stabilisation as well as a very poor dispersion of OMPOSS and OP950 into the matrix has been observed. |
| Keywords: | PET Exolit OP950 phosphinates OMPOSS Synergy Fire retardancy Intumescence |
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