Table 2.
The values of the equilibrium swelling , the rate parameter , and the mean squared error MSE obtained using the five different methods for the potassium polyacrylate powders and the sodium polyacrylate powders, respectively.
| Hydrogel Sample | Parameters | Tea-Bag | Pyramid Tea-Bag | Sieve | Filtration | Proposed Method |
|---|---|---|---|---|---|---|
| Potassium polyacrylate |
(s) | 227.9 | 164.4 | 88.8 | 87.1 | 111.0 |
| (g/g) | 126.0 | 133.6 | 142.2 | 145.6 | 121.2 | |
| MSE | 944.7 | 1156.3 | 757.3 | 811.9 | 243.7 | |
| Sodium polyacrylate |
(s) | 281.5 | 222.4 | 147.1 | 116.5 | 143.8 |
| (g/g) | 352.5 | 363.7 | 377.6 | 403.4 | 329.6 | |
| MSE | 276.4 | 250.9 | 50.2 | 155.2 | 49.2 |