2.5.1. Mechanical Properties

Mechanical properties, including elongation at break (EAB), tensile strength (TS), and elastic modulus (EM), were determined by tensile testing, using an LR 5K universal testing machine (Lloyd Instrument, Bognor Regis, UK). The film was cut into rectangular strips with dimensions of 60 mm × 20 mm. The deformation was recorded at a crosshead speed of 10 mm min−<sup>1</sup> and an initial gage length of 50 mm. Averages were calculated from five replicates of each sample.
