Table 3 Effect of genipin concentration on the compressive mechanical properties of delignified wood, gelatin, and their composite hydrogels.
From: High strength and low swelling composite hydrogels from gelatin and delignified wood
Sample | Genipin (mM) | Elastic modulus (MPa) | Fracture strain (%) | Fracture stress (MPa) | Yield stress (kPa) | Yield strain (%) |
|---|---|---|---|---|---|---|
Gelatin hydrogels | 1 | 0.0225 ± 0.0024 | 45.4 ± 3.6 | 0.0217 ± 0.0046 | – | – |
50 | 0.0663 ± 0.0064 | 71.2 ± 2.8 | 0.5742 ± 0.1654 | – | – | |
100 | 0.1358 ± 0.0230 | 75.3 ± 4.9 | 1.01 ± 0.37 | – | – | |
Delignified wood | – | 21.89 ± 3.76 | > 95 | 0.3146 ± 0.0072a | 311.0 ± 21.6 | 3.2 ± 0.3 |
Delignified wood/gelatin hydrogels | 1 | 18.12 ± 1.87 | > 95 | 5.06 ± 1.05a | 382.3 ± 32.8 | 4.5 ± 0.2 |
50 | 14.07 ± 1.42 | > 95 | 7.40 ± 2.29a | 652.6 ± 49.8 | 9.7 ± 0.2 | |
100 | 11.82 ± 1.51 | > 95 | 14.44 ± 2.65a | 689.3 ± 34.9 | 10.2 ± 0.6 |
