MA Qi (1991-), male, Master, Assistant Engineer. E-mail: nanjingma33@163.com
1H-perimidine (PED) and 2-hydroxy-1H-perimidine (HPED) were prepared as corrosion inhibitors for HRB400 reinforced steel in simulated concrete pore solution. The corrosion inhibition performance and adsorption mechanism were investigated via dry and wet cycle experiments, scanning electron microscopy, electrochemical impedance spectroscopy and related theoretical calculations. The results show that the inhibition efficiencies of these compounds are more than 80% for HRB400 reinforced steel in SCP at a concentration of less than 0.12 mmol/L. Moreover, HPED functions as a more effective inhibitor rather than PED due to the presence of 2-position hydroxyl-group. In addition, the inhibitor molecules spontaneously adsorb onto reinforced steel surfaces to form a protective film, and the adsorption process follows the Langmuir isothermal model.
| 科 Family | 属数 Number of genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) | 属 Genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
|---|---|---|---|---|---|---|
| 鹅膏菌科Amanitaceae | 2 | 11 | 5.26 | 鹅膏菌属 Amanita | 10 | 4.78 |
| 小菇科 Mycenaceae | 2 | 12 | 5.74 | 丝盖伞属 Inocybe | 5 | 2.39 |
| 多孔菌科 Polyporaceae | 8 | 14 | 6.70 | 蜡蘑属 Laccaria | 5 | 2.39 |
| 红菇科 Russulaceae | 3 | 23 | 11.00 | 小皮伞属 Marasmius | 6 | 2.87 |
| 小菇属 Mycena | 11 | 5.26 | ||||
| 光柄菇属 Pluteus | 5 | 2.39 | ||||
| 红菇属 Russula | 17 | 8.13 | ||||
| 栓菌属 Trametes | 5 | 2.39 |