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  • 1 EUROTEST S.A. Splaiul Unirii Nr. 313 P.O. Box 4-77 Bucharest 73204 Splaiul Unirii Nr. 313 P.O. Box 4-77 Bucharest 73204
  • | 2 University of Bucharest Department of Physical Chemistry, Faculty of Chemistry Bd. Republicii 13 Bucharest Roumania Bd. Republicii 13 Bucharest Roumania
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Abstract  

The accelerated thermal degradation of low-density polyethylene (LDPE) was studied in air at atmospheric pressure and temperatures of 70, 80, 90 and 100C. The changes in elongation at break, traction resistance and density as a result of accelerated thermooxidative degradation were followed. Thermal analysis curves (TG, DTG and DTA) of non-aged and thermally aged LDPE were recorded, and the thermal analysis results were compared with those relating to the variations in the elongation at break, the traction resistance and the density as a consequence of accelerated thermal aging.