Accéder directement au contenu Accéder directement à la navigation
Article dans une revue

Kinetic modeling of polyurethane pyrolysis using non-isothermal thermogravimetric analysis

Abstract : The pyrolysis of polyurethane was studied by dynamic thermogravimetry analysis (TGA). The studied polyurethane is used as organic binder in casting process to make sand cores and molds. A semi-empirical model is presented that can be used to describe polyurethane pyrolysis occurring during TGA experiments. This model assumes that the polyurethane is pyrolysed by several parallel independent reactions. The kinetic parameters of polyurethane pyrolysis were evaluated by fitting the model to the experimental data obtained by TGA over a wide variety of heating rates. A nonlinear least-squares optimization method is employed in the fitting procedure. A hybrid objectives based simultaneously on the mass (TG) and mass loss rate (DTG) curves has been used in the least-squares method. The values of the activation energy obtained by the nonlinear fitting were then recalculated by the methods of Kissinger and Friedmand. Furthermore, the parameters obtained in the present paper were then compared with those reported in the literature.
Type de document :
Article dans une revue
Liste complète des métadonnées

Littérature citée [22 références]  Voir  Masquer  Télécharger

https://hal-mines-paristech.archives-ouvertes.fr/hal-01158620
Contributeur : Marie-Claude Watroba <>
Soumis le : mardi 12 janvier 2016 - 13:54:54
Dernière modification le : samedi 19 septembre 2020 - 04:28:31
Archivage à long terme le : : vendredi 15 avril 2016 - 16:31:12

Fichier

1-s2.0-S0040603115002051-main-...
Fichiers produits par l'(les) auteur(s)

Identifiants

Citation

Ghassan Jomaa, Patrick Goblet, Christophe Coquelet, Morlot Vincent. Kinetic modeling of polyurethane pyrolysis using non-isothermal thermogravimetric analysis. Thermochimica Acta, Elsevier, 2015, 612, pp.10-18. ⟨10.1016/j.tca.2015.05.009⟩. ⟨hal-01158620⟩

Partager

Métriques

Consultations de la notice

559

Téléchargements de fichiers

943