Fig. 6: Thermal analysis of virgin and 12-month aged PET.

A The TGA-DSC curves of virgin versus aged PET. B A decrease in the melting and recrystallization temperature of long-term weathered PET (solid line to dashed line).

A The TGA-DSC curves of virgin versus aged PET. B A decrease in the melting and recrystallization temperature of long-term weathered PET (solid line to dashed line).