Table 5.
Mechanical properties of the films along machine and transverse directions (the numbers in parenthesis indicate standard deviations obtained from at least five repetitions).
Samples | Along Machine Direction | Along Transverse Direction | ||||
---|---|---|---|---|---|---|
Yield Stress, MPa | Tensile Stress at Break, MPa | Elongation at Break, % | Yield Stress, MPa | Tensile Stress at Break, MPa | Elongation at Break, % | |
PP | 33 (1) | 49 (2) | 605 (34) | 32 (1) | 31 (1) | 8 (1) |
PP/HNTs | 32 (1) | 54 (6) | 607 (50) | 29 (1) | 28 (2) | 5 (1) |
PP/carvacrol | 17 (1) | 48 (3) | 663 (23) | 17 (1) | 25 (4) | 499 (59) |
PP/(HNTs-carvacrol) | 24 (1) | not observed | >700 | 23 (1) | 33 (1) | 643 (28) |