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| Pre-filmed Inhibitor for Steel in Ship |
| Received:March 28, 2016 Revised:August 15, 2016 |
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| DOI：10.7643/ issn.1672-9242.2016.04.003 |
| KeyWord:ship pre-filmed inhibitor electrochemical impedance spectroscopy |
| Author | Institution |
| CHEN Yu |
1.Zhejiang University, a.School of Aeronautics and Astronautics;b.Department of Chemistry, Hangzhou , China;2.Hangzhou Core Power Technology Co., Ltd, Hangzhou , China |
| CHEN Xin-hui |
Zhejiang University, b.Department of Chemistry, Hangzhou , China |
| ZHU Ben-feng |
Zhejiang University, b.Department of Chemistry, Hangzhou , China |
| LIU Yuan-wei |
Department of Chemical Engineering, Binzhou University, Binzhou , China |
| ZHANG Zhao |
Zhejiang University, b.Department of Chemistry, Hangzhou , China |
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| Abstract: |
| Objective To study the inhibition behavior and the optimal composition of CP-CI021 pre-filmed inhibitor for Q235 steel in seawater. Methods The inhibition behavior of CP-CI021 for Q235 steel in seawater and the optimal composition were investigated with weight loss method and electrochemical impedance spectroscopy. Results The CP-CI021 pre-filmed inhibitor had excellent inhibition property, and the EIS impedance modulus of pre-filmed Q235 steel increased by 2 orders of magnitude compared to the Q235 steel without pre-filming. Conclusion The optimal composition of CP-CI021 pre-filmed inhibitor was: PHA, 7.3 g/L, assistant A, 3 g/L, assistant B, 5 g/L, and the inhibition efficiency reached 98.4%. |
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