Table 2. The effect of concentration and temperature on the anticorrosion behavior of PBT for Q235 CS in 1.0 mol per L HCl.
| T/K | C inh/mmol L−1 | v/mg cm−2 h−1 | η/% |
|---|---|---|---|
| 288.15 K | Blank | 0.5834 ± 0.0068 | |
| 0.005 | 0.3407 ± 0.0042 | 41.6% | |
| 0.01 | 0.2187 ± 0.0048 | 62.5% | |
| 0.05 | 0.1703 ± 0.0024 | 70.8% | |
| 0.25 | 0.1340 ± 0.0034 | 77.0% | |
| 1.0 | 0.0991 ± 0.0044 | 83.0% | |
| 298.15 K | Blank | 2.2074 ± 0.0164 | |
| 0.005 | 1.1227 ± 0.0052 | 49.1% | |
| 0.01 | 0.5832 ± 0.0086 | 73.6% | |
| 0.05 | 0.2833 ± 0.0058 | 87.2% | |
| 0.25 | 0.2370 ± 0.0110 | 89.3% | |
| 1.0 | 0.2106 ± 0.0050 | 90.5% | |
| 308.15 K | Blank | 3.5767 ± 0.0055 | |
| 0.005 | 1.9278 ± 0.0109 | 46.1% | |
| 0.01 | 1.2272 ± 0.0133 | 65.7% | |
| 0.05 | 0.8325 ± 0.0091 | 76.7% | |
| 0.25 | 0.4121 ± 0.0079 | 88.5% | |
| 1.0 | 0.3531 ± 0.0061 | 90.1% | |
| 318.15 K | Blank | 7.0016 ± 0.0028 | |
| 0.005 | 4.5279 ± 0.0120 | 35.3% | |
| 0.01 | 3.8737 ± 0.0093 | 44.7% | |
| 0.05 | 2.4511 ± 0.0043 | 65.0% | |
| 0.25 | 1.2649 ± 0.0102 | 81.9% | |
| 1.0 | 0.7146 ± 0.0032 | 89.8% |