Table 1.
Physical and optical properties of the PSG films containing various concentrations of ME
| ME (%) | Tensile Strength (MPa) |
Elongation at break (%) | Water vapor permeability (×10−9 g m/m2 s Pa) |
L | a | b | Opacity |
|---|---|---|---|---|---|---|---|
| 0 | 50.60 ± 0.32e | 18.90 ± 1.42e | 1.70 ± 0.07a | 93.10 ± 0.23a | −1.26 ± 0.10a | 7.85 ± 0.29e | 0.77 ± 0.04e |
| 0.3 | 55.68 ± 0.82d | 29.85 ± 0.95d | 1.64 ± 0.07a | 84.25 ± 0.56b | −8.25 ± 0.17e | 32.79 ± 0.25d | 1.02 ± 0.04d |
| 0.5 | 63.28 ± 0.64c | 41.91 ± 1.59c | 1.49 ± 0.01b | 77.11 ± 0.22c | −7.34 ± 0.10d | 39.22 ± 0.15c | 1.24 ± 0.06c |
| 0.7 | 71.37 ± 0.85b | 46.13 ± 1.53b | 1.43 ± 0.02b | 73.43 ± 0.15d | −5.94 ± 0.08c | 40.36 ± 0.10b | 1.41 ± 0.08b |
| 1.0 | 84.49 ± 1.34a | 65.93 ± 1.08a | 1.38 ± 0.02b | 68.23 ± 0.29e | −4.60 ± 0.40b | 41.03 ± 0.11a | 1.59 ± 0.13a |
Mean ± SD
a–e Any means in the same column followed by different letters are significantly (p < 0.05) different by Duncan’s multiple range test