| WANG Min,CAI Lan-kun,TANG Yi-jing,CAI Jing-fang,ZHOU Hao,WU Lai-ming,YAN Ying.Preparation and Anti-corrosion Performance of Super-hydrophobic Film on the Surface of Bronze Covered with Patina[J],49(11):50-57, 123 |
| Preparation and Anti-corrosion Performance of Super-hydrophobic Film on the Surface of Bronze Covered with Patina |
| Received:October 16, 2020 Revised:November 10, 2020 |
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| DOI：10.16490/j.cnki.issn.1001-3660.2020.11.006 |
| KeyWord:bronze super-hydrophobic straightforward immersion corrosion resistance stability |
| Author | Institution |
| WANG Min |
State Environmental Protection Key Laboratory of Environmental Risk Assessment and Control on Chemical Process, East China University of Science and Technology, Shanghai , China |
| CAI Lan-kun |
State Environmental Protection Key Laboratory of Environmental Risk Assessment and Control on Chemical Process, East China University of Science and Technology, Shanghai , China |
| TANG Yi-jing |
State Environmental Protection Key Laboratory of Environmental Risk Assessment and Control on Chemical Process, East China University of Science and Technology, Shanghai , China |
| CAI Jing-fang |
State Environmental Protection Key Laboratory of Environmental Risk Assessment and Control on Chemical Process, East China University of Science and Technology, Shanghai , China |
| ZHOU Hao |
Key Scientific Research Base of Museum Environment, State Administration for Cultural Heritage, Shanghai Museum, Shanghai , China |
| WU Lai-ming |
Key Scientific Research Base of Museum Environment, State Administration for Cultural Heritage, Shanghai Museum, Shanghai , China |
| YAN Ying |
State Environmental Protection Key Laboratory of Environmental Risk Assessment and Control on Chemical Process, East China University of Science and Technology, Shanghai , China;Shandong Key Laboratory of Corrosion Science, The Institute of Oceanology, Chinese Academy of Sciences, Qingdao , China |
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| Abstract: |
| The work aims to study the preparation process and anti-corrosion performance of super-hydrophobic (SH) film on the surface of bronze with Cu2O. Straightforward immersion method was adopted to prepare the SH film on the surface of bronze with Cu2O. The effect of the ratio of n-dodecyl mercaptan to myristic acid and immersion time on the construction and corrosion resistance of SH film was investigated by single factor experiments. The contact angle test, electrochemical measurement method and surface analysis means were used to evaluate the surface properties, structure and stability of SH film. Hydrophobic long chains of n-dodecyl mercaptan and myristic acid were assembled on the surface of bronze with Cu2O. The optimal preparation conditions of SH film included a mixed solution of 5.0 nmol/L n-dodecyl mercaptan and 1.0 nmol/L myristic acid and an immersion time of 1.0 h. Under the above conditions, the contact angle and corrosion inhibition efficiency reached 157.2° and 97.21% respectively. At the same time, the electrochemical impedance spectroscopy suggested that, the SH film had good corrosion resistance when the charge transfer resistance increased by two orders of magnitude. The corrosion efficiency of the SH film still reached 96.56% after immersion in atmospheric simulation solution for 30 d, indicating the excellent stability. The SH film constructed on the surface of bronze with Cu2O can effectively improve the corrosion resistance and hydrophobicity. |
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