Thermal and catalytic degradation study of polyethylene and investigation the catalytic effect of X-Zeolite and Silica-Alumina on degradation kinetic
الموضوعات : Journal of the Iranian Chemical Research
Mohammad Taghi Taghizadeh
1
(Department of Physical Chemistry, Faculty of Chemistry, University of Tabriz, Tabriz, Iran)
Parinaz Seifi-Aghjekohal
2
(Department of Physical Chemistry, Faculty of Chemistry, University of Tabriz, Tabriz, Iran)
Ali Bahadori,
3
(Department of Physical Chemistry, Faculty of Chemistry, University of Tabriz, Tabriz, Iran)
Banafsheh Zeraatkar
4
(Department of Physical Chemistry, Faculty of Chemistry, University of Tabriz, Tabriz, Iran)
الکلمات المفتاحية: Thermal degradation, Polyethylene, X-Zeolite, Silica-Alumina, Activation energies,
ملخص المقالة :
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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