Table 2.
Rheological parameters of the investigated samples.
| Sample | τl
a (Pa) |
γl
a (%) |
G′ b (Pa) |
G″ b (Pa) |
tan δ b (=G″/G′) |
Structure Recovery c (%) |
|---|---|---|---|---|---|---|
| 1q | 6.5 | 39.7 | 15.7 | 1.9 | 0.12 | 80.1 |
| 2d | 40.8 | 15.8 | 326 | 28.7 | 0.09 | 74.7 |
| 2t | 7.4 | 18.9 | 38.4 | 4.8 | 0.13 | 79.1 |
| 2q | 4.7 | 25.2 | 20.2 | 2.8 | 0.14 | 80.0 |
| 2.5d | 20.4 | 15.8 | 87 | 7.3 | 0.08 | 76.1 |
| 2.5t | 0.4 | 6.3 | 16.3 | 2.1 | 0.13 | 89.3 |
| 3d | 11.7 | 15.8 | 77.4 | 6.3 | 0.08 | 78.8 |
| 3t | 0.3 | 9.9 | 1.1 | 0.4 | 0.36 | 94.7 |
| 3.5t | 2.1 | 39.7 | 3.3 | 0.5 | 0.15 | - |
| 4d | 0.6 | 25.1 | 3.4 | 0.9 | 0.26 | 97.6 |
| 4t | 0.2 | 25.3 | 0.4 | 0.2 | 0.50 | 100 |
| 6 | 5.9 | 46 | 5.6 | 2.1 | 0.38 | - |
| 9 | 8.8 | 39.7 | 11.6 | 2.1 | 0.18 | - |
a τl and γl represent the limit shear stress and strain from which the sample structure starts to change (determined by amplitude sweep measurements at 10 rad s−1); b values provided from the frequency sweep tests at 1 rad s−1; c the percentage of the G′ recovery determined at the end of the three flow steps.