Table 8.
Stress at yield, tensile strength, and elongation at break of PET film and the same film after the deposition of whey-based coating and successive removal (washing) of it by Terg-a-zyme treatment.
Sample | Stress at Yield (MPa) | Tensile Strength (MPa) | Elongation at Break (%) |
---|---|---|---|
PET | 98 ± 2 | 170 ± 20 | 26 ± 6 |
PET after washing | 98 ± 5 | 150 ± 20 | 19 ± 5 |
PE | 12 ± 0.3 | 27 ± 2 | 150 ± 12 |
PE after washing | 11 ± 0.1 | 22 ± 1 | 280 ± 18 |