Experiments were carried out at 20 °C with a constant crosshead speed of 20 mm min -1 . Series of at least five samples with dimensions of around 30 × 10 × 1 mm 3 were taken. Young's modulus (E), strength at break (σmax) and elongation at break (εmax) were calculated. To produce the specimens, 1 mm-thick films were hot-pressed using a LabTech Engineering Company Ltd. press. For PVC, around 13 g of polymer were first preheated to 150 °C for 3 min in a 10 x 10 cm 2 mold, and then pressed between the plates at 160 bar and then cool down till room temperature for 5 min.