Thermogravimetric study of the kinetics of degradation of polypropylene with solid catalysts
Articolo
Data di Pubblicazione:
2001
Citazione:
Thermogravimetric study of the kinetics of degradation of polypropylene with solid catalysts / P. Carniti, A. Gervasini. - In: THERMOCHIMICA ACTA. - ISSN 0040-6031. - 379:1-2(2001), pp. 51-58.
Abstract:
The degradation of polypropylene in the presence of solid catalysts of different acidity was studied by thermogravimetric analysis (TGA) employing three different heating rates. The temperatures of onset, Ton, of maximum-rate, Tmax, as well as of end, Tend, of the degradation shifted to lower values as higher the acidity of the catalysts. A comparison among the catalytic activities has been performed on the basis of the apparent kinetic parameters, frequency factor and activation energy, obtained from the TG data. The maximum activity was observed for the more acidic catalysts (silica-aluminas).
Tipologia IRIS:
01 - Articolo su periodico
Keywords:
Kinetic parameters; Polypropylene degradation; Solid catalysts; TGA
Elenco autori:
P. Carniti, A. Gervasini
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