Table 2: The properties of IPN PVA/GE hydrogels after one freezing-thawing cycle.

SamplesIPN-1IPN-2IPN-3IPN-4

Gel fraction (%)25 ± 1.2036 ± 1.3549 ± 1.5058 ± 1.65
EDS (%)135 ± 4.50132 ± 3.75130 ± 3.45130 ± 3.50
EWC (%)45 ± 2.0044.5 ± 2.2542.5 ± 2.5042 ± 2.75
Stress (MPa)0.11 ± 0.140.15 ± 0.180.25 ± 0.240.28 ± 0.22
Strain (%)18.23 ± 4.6025.67 ± 7.8034.56 ± 12.9047.78 ± 14.65
Elastic modulus (MPa)0.35 ± 0.450.41 ± 0.490.56 ± 0.620.65 ± 0.64
Tensile strength (MPa)0.30 ± 0.050.42 ± 0.090.52 ± 0.150.58 ± 0.19
Solid density ( ) (Mg m−3)1.131.201.291.34