Viretto Amandine, Sonnier Rodolphe, Taguet Aurélie, Otazaghine Belkacem, Ferry Laurent, Lopez-Cuesta José-Marie, Lagrève Christian. 2016. Thermal degradation of polyesters filled with magnesium dihydroxide and magnesium oxide. Fire and Materials, 40 (3) : 445-463.
![[img]](http://agritrop.cirad.fr/style/images/fileicons/text.png) |
Version publiée
- Anglais
Accès réservé aux personnels Cirad Utilisation soumise à autorisation de l'auteur ou du Cirad. 3-MDH polyesters.pdf Télécharger (2MB) | Demander une copie |
Quartile : Q3, Sujet : MATERIALS SCIENCE, MULTIDISCIPLINARY
Résumé : Magnesium dihydroxide (MDH) was evaluated as char promoter into different polymers exhibiting various chemical structures. Char promotion was characterized using thermogravimetric analysis and pyrolysis-combustion flow calorimetry. Gases released during pyrolysis were identified using pyrolysis coupled gas chromatography/mass spectrometry and thermogravimetric analysis coupled Fourier transform infrared spectroscopy. Relationships between the MDH effect (according to the char content and its thermal stability) and the chemical structure of the host polymers were identified. It was shown that MDH can be a good char promoter for aromatic polyesters such as polybutylene terephtalate and polyethylene terephtalate. Char promotion can be considered as one of the main mode-of-action of MDH at low or moderate filler content. An optimum was observed at approximately 20wt.% of MDH. Magnesium oxide was also studied as substitute to MDH to avoid hydrolysis phenomena due to the water release. But it was demonstrated that MDH was more efficient as a char promoter for polybutylene terephtalate than magnesium oxide.
Mots-clés Agrovoc : pyrolyse, structure chimique, oxydation, polyester, polyéthylène, omble, polymère, magnesium, dégradation chimique
Mots-clés libres : Flame retardancy, Polyesters, Poly(butylene terephthalate), Magnesium dihydroxide, Magnesium oxide
Auteurs et affiliations
- Viretto Amandine, Ecole des mines d'Alès (FRA)
- Sonnier Rodolphe, Ecole des mines d'Alès (FRA) - auteur correspondant
- Taguet Aurélie, Ecole des mines d'Alès (FRA)
- Otazaghine Belkacem, Ecole des mines d'Alès (FRA)
- Ferry Laurent, Ecole des mines d'Alès (FRA)
- Lopez-Cuesta José-Marie, Ecole des mines d'Alès (FRA)
- Lagrève Christian, ACOME (FRA)
Source : Cirad-Agritrop (https://agritrop.cirad.fr/605185/)
[ Page générée et mise en cache le 2024-05-01 ]
