Thermal and catalytic degradation study of polyethylene and investigation the catalytic effect of X-Zeolite and Silica-Alumina on degradation kinetic
محورهای موضوعی : Journal of the Iranian Chemical ResearchMohammad Taghi Taghizadeh 1 , Parinaz Seifi-Aghjekohal 2 , Ali Bahadori, 3 , Banafsheh Zeraatkar 4
1 - Department of Physical Chemistry, Faculty of Chemistry, University of Tabriz, Tabriz, Iran
2 - Department of Physical Chemistry, Faculty of Chemistry, University of Tabriz, Tabriz, Iran
3 - Department of Physical Chemistry, Faculty of Chemistry, University of Tabriz, Tabriz, Iran
4 - Department of Physical Chemistry, Faculty of Chemistry, University of Tabriz, Tabriz, Iran
کلید واژه: Thermal degradation, Polyethylene, X-Zeolite, Silica-Alumina, Activation energies,
چکیده مقاله :
The thermal degradation of polyethylene (PE) was carried out in the absence and presence ofcatalystes X-Zeolite and Silica-Alumina at different temperatures. The optimum PE/Catalysisratio was 0.25:0.05 g/g, which produced highest degradation value. PE and PE/Catalysis werecharacterized by thermogravimetric analysis. The thermal degradation properties of polymerhave been studied by Infrared spectroscopy–FT-IR. Experimental data indicated that thepresence of catalysis greatly increased the rate of degradation of PE. The activation energy ofdegradation for pure polyethylene and polyethylene in presence catalysises was calculated byArrhenius equation and Ozawa method. Activation energy follows the order PE < PE/Silica-Alumina < PE/X-Zeolite.
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