Table 3.
Rate constants k′, k′′ and k′′′ of different degradation models, applied to ultrasonicated EPS at different power density I [W/cm²].
| EPS | I [W/cm²] | 1st Order Degradation |
2nd Order Degradation |
3rd Order Degradation |
|||
|---|---|---|---|---|---|---|---|
| k′ [1/min] |
r² | k′′ [1/(Da∙min)] |
r² | k′′′ [1/(Da²∙min)] |
r² | ||
| DGCC7710 fEPS | 114 | −4.76 × 10−1 | 0.59 | 1.74 × 10−6 | 0.93 | 1.80 × 10−11 | 0.99 |
| 55 | −4.13 × 10−1 | 0.58 | 1.34 × 10−6 | 0.92 | 1.19 × 10−11 | 0.99 | |
| 33 | −4.96 × 10−1 | 0.83 | 9.36 × 10−7 | 0.98 | 4.59 × 10−12 | 0.98 | |
| 10 | −4.03 × 10−1 | 0.94 | 1.86 × 10−7 | 0.99 | 1.66 × 10−13 | 0.99 | |
| ST143 fEPS | 114 | −3.75 × 10−1 | 0.64 | 8.51 × 10−7 | 0.94 | 5.15 × 10−12 | 0.99 |
| DGCC7919 fEPS | 114 | −5.04 × 10−1 | 0.64 | 1.88 × 10−6 | 0.88 | 2.02 × 10−11 | 0.96 |
| Dextran | 114 | −1.76 × 10−1 | 0.93 | 1.26 × 10−6 | 0.98 | 3.60 × 10−12 | 0.98 |