Table 6.
Mean, standard deviation, minimum, and maximum of the water absorption and thickness swelling of all test samples after water storage for 24 h, n = 8 (a, b, c, d, e values with the same letter are not significantly different: ANOVA, Post-Hoc Tukey HSD, α = 0.05), values are significantly different to the control (epoxy) (ANOVA; p < 0.05).
| Water Absorption (%) | Thickness Swelling (%) | |||||||
|---|---|---|---|---|---|---|---|---|
| Mean (std. dev.) | Minimum | Maximum | p | Mean (std. dev.) | Minimum | Maximum | p | |
| Casein 1A | 56.74 b,c,d (3.29) | 50.68 | 60.62 | . | 6.01 a (0.77) | 4.59 | 6.84 | . |
| Casein 1B | 50.71 b (2.70) | 45.93 | 54.14 | . | 9.06 a (1.84) | 5.53 | 10.68 | . |
| Casein 1C | 62.15 d (5.62) | 51.89 | 68.94 | . | 9.49 a (2.49) | 5.33 | 13.00 | . |
| Casein 1D | 53.18 b,c (1.60) | 50.67 | 55.64 | . | 4.66 a (3.03) | 0.21 | 8.67 | . |
| Casein 1E | 69.86 e (6.20) | 61.13 | 79.72 | . | 10.93 a,b (1.49) | 9.37 | 13.38 | - |
| Casein 2 | 74.00 e (3.10) | 70.25 | 78.48 | . | 4.77 a (3.91) | −1.72 | 9.91 | . |
| Casein 3 | 53.50 b,c (0.85) | 52.43 | 54.93 | . | 10.16 a,b (4.57) | 2.98 | 17.43 | - |
| Epoxy | 40.24 a (3.33) | 35.06 | 44.77 | - | 10.54 a,b (1.75) | 8.52 | 13.63 | - |
| PVAc D4 | 58.15 c,d (2.77) | 54.74 | 61.45 | . | 16.46 b (7.41) | 7.03 | 28.94 | . |