Research Article
Quantitative Fractal Evaluation of Herbicide Effects on the Water-Absorbing Capacity of Superabsorbent Polymers
Table 4
Generalized multifractal dimension
for SAP hydrogel microtopography at different swelling times.
| Atrazine/mg·L−1 | Swelling/min | | | 1 | 3 | 5 | 7 | 9 | 0 | −1 | −3 | −5 | −7 | −9 |
| 0 | 10 | Dq | 1.919 | 1.902 | 1.898 | 1.897 | 1.898 | 1.953 | 2.047 | 2.223 | 2.311 | 2.356 | 2.383 | | 0.99** | 0.99** | 0.99** | 0.99** | 0.99** | 0.99** | 0.98** | 0.90** | 0.87** | 0.85** | 0.84** | 40 | Dq | 1.987 | 1.981 | 1.981 | 1.981 | 1.982 | 2.008 | 2.103 | 2.314 | 2.413 | 2.463 | 2.494 | | 0.99** | 0.99** | 0.99** | 0.99** | 0.99** | 0.99** | 0.98** | 0.93** | 0.91** | 0.90** | 0.89** | 70 | Dq | 1.993 | 1.984 | 1.983 | 1.983 | 1.983 | 2.013 | 2.104 | 2.337 | 2.446 | 2.503 | 2.536 | | 0.99** | 0.99** | 0.99** | 0.99** | 0.99** | 0.99** | 0.99** | 0.94** | 0.92** | 0.91** | 0.90** | 100 | Dq | 2.059 | 2.055 | 2.053 | 2.052 | 2.052 | 2.068 | 2.116 | 2.366 | 2.500 | 2.569 | 2.609 | | 0.99** | 0.99** | 0.99** | 0.99** | 0.99** | 0.99** | 0.99** | 0.97** | 0.95** | 0.94** | 0.94** | 150 | Dq | 2.078 | 2.071 | 2.068 | 2.067 | 2.067 | 2.089 | 2.137 | 2.399 | 2.541 | 2.614 | 2.657 | | 0.99** | 0.99** | 0.99** | 0.99** | 0.99** | 0.99** | 0.99** | 0.95** | 0.92** | 0.91** | 0.91** |
| 2 | 10 | Dq | 1.806 | 1.800 | 1.803 | 1.805 | 1.808 | 1.838 | 1.927 | 2.063 | 2.125 | 2.157 | 2.176 | | 0.99** | 0.99** | 0.99** | 0.99** | 0.99** | 0.99** | 0.95** | 0.83* | 0.79* | 0.77* | 0.76* | 40 | Dq | 1.821 | 1.814 | 1.816 | 1.819 | 1.821 | 1.853 | 1.949 | 2.102 | 2.170 | 2.203 | 2.223 | | 0.99** | 0.99** | 0.99** | 0.99** | 0.99** | 0.99** | 0.96** | 0.86** | 0.83* | 0.82* | 0.81* | 70 | Dq | 1.941 | 1.934 | 1.933 | 1.932 | 1.932 | 1.962 | 2.040 | 2.219 | 2.301 | 2.343 | 2.369 | | 0.99** | 0.99** | 0.99** | 0.99** | 0.99** | 0.99** | 0.97** | 0.90** | 0.88** | 0.87** | 0.86** | 100 | Dq | 2.006 | 2.001 | 2.002 | 2.003 | 2.004 | 2.023 | 2.096 | 2.282 | 2.380 | 2.430 | 2.460 | | 0.99** | 0.99** | 0.99** | 0.99** | 0.99** | 0.99** | 0.98** | 0.90** | 0.87** | 0.85** | 0.84** | 150 | Dq | 2.008 | 2.005 | 2.004 | 2.005 | 2.005 | 2.023 | 2.106 | 2.329 | 2.433 | 2.486 | 2.518 | | 0.99** | 0.99** | 0.99** | 0.99** | 0.99** | 0.99** | 0.99** | 0.93** | 0.92** | 0.91** | 0.90** |
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Correlation is significant at the 0.01 level “**” and 0.05 level “*” (two-tailed).
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