Table 4.
Physicochemical properties of starch–chitosan biodegradable films reinforced with cellulose nanocrystals (CNC).
| CNC Content (w/w) in Starch–Chitosan Films | Tensile Strength (MPa) | Elongation at Break (%) | WVP × 10−10 (g·m−1s−1Pa−1) |
|---|---|---|---|
| 0% | 3.49 ± 0.32 b | 74.67 ± 5.48 b | 3.01 ± 0.37 a |
| 0.5% | 2.89 ± 0.23 a | 140.40 ± 10.62 d | 4.84 ± 0.55 b |
| 2.5% | 6.16 ± 0.39 c | 88.96 ± 8.99 c | 2.46 ± 0.21 a |
| 5.0% | 6.72 ± 0.41 d | 145.13 ± 12.74 d | 4.33 ± 0.34 b |
| 7.5% | 13.61 ± 0.55 e | 5.32 ± 0.53 a | 4.35 ± 0.26 b |
| 10.0% | 6.00 ± 0.50 c | 90.57 ± 5.08 c | 4.30 ± 0.27 b |
Values with different letters (a, b, c, d, e) in the same column denote significant differences (Tukey test; p < 0.05). Values are given as mean ± standard deviation (n = 8 for mechanical properties, and n = 4 for WVP).