Table 2.
Mechanical properties of GH, GH-GlcN9 and GH-GlcN16 cryogels. Values are mean ± SD of five independent measurements.
| GH | GH-GlcN9 | GH-GlcN16 | |
|---|---|---|---|
| Compressive elastic modulus, ε = 0.1 (kPa) | 45.1 ± 5.3 | 30.3 ± 4.1 * | 24.9 ± 3.6 * |
| Compressive elastic modulus, ε = 0.3 (kPa) | 255.6 ± 77.9 | 156 ± 25.3 | 132.3 ± 19.8 * |
| Compressive strain to failure (%) | 45.7 ± 1.5 | 49 ± 1.0 | 47.7 ± 3.1 |
| Compressive stress to failure (kPa) | 118.6 ± 12.1 | 90.6 ± 8.9 * | 53.3 ± 5.0 *,# |
| Toughness (kJ/m3) | 12.7 ± 1.3 | 10.8 ± 0.8 | 8.2 ± 2.1 * |
| Compression energy (kJ/m3) | 2.5 ± 0.1 | 1.9 ± 0.3 * | 1.3 ± 0.1 *,# |
| Relaxation energy (kJ/m3) | 0.8 ± 0.1 | 0.7 ± 0.2 | 0.5 ± 0.1 * |
| Dissipation energy (kJ/m3) | 1.7 ± 0.1 | 1.2 ± 0.1 * | 0.8 ± 0.1 *,# |
| Percentage of energy dissipation (%) | 68.2 ± 4.4 | 61.3 ± 1.4 * | 59.7 ± 1.6 * |
* p < 0.05 compared with GH cryogel; # p < 0.05 compared with GH-GlcN9 cryogel.