| WU Si-min,YAN Ying,BAI Zhong-qing,ZHOU Hao,WU Lai-ming,LIN Ying,CAI Lan-kun.Preparation and Characterization of Super-hydrophobic Film on Simulated Surface of Bronze with Powdery Rust[J],46(2):40-45 |
| Preparation and Characterization of Super-hydrophobic Film on Simulated Surface of Bronze with Powdery Rust |
| Received:October 10, 2016 Revised:February 20, 2017 |
| View Full Text View/Add Comment Download reader |
| DOI：10.16490/j.cnki.issn.1001-3660.2017.02.006 |
| KeyWord:powdery corrosion bronze super-hydrophobic self-assembly silane corrosion resistance |
| Author | Institution |
| WU Si-min |
School of Resources and Environmental Engineering, East China University of Science and Technology, Shanghai , China |
| YAN Ying |
School of Resources and Environmental Engineering, East China University of Science and Technology, Shanghai , China |
| BAI Zhong-qing |
School of Resources and Environmental Engineering, 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 |
| LIN Ying |
School of Resources and Environmental Engineering, East China University of Science and Technology, Shanghai , China |
| CAI Lan-kun |
School of Resources and Environmental Engineering, East China University of Science and Technology, Shanghai , China |
|
| Hits: |
| Download times: |
| Abstract: |
| The work aims to prove that the research on the surface properties of powdery rust of bronze relics has an important significance on building reasonable and effective protection methods as the powdery rust will cause serious damage to bronze relics. Through self-assembly technology, the 3-mercaptopropyl trimethoxysilane (MPTS) and n-octyltriethoxysilane (OS) composite film on the surface of bronze test piece contaminated with powdery rust was prepared. The Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM) and contact angle meter were used to characterize and analyze the surface morphology and structure features of composite film. And the electrochemical test was carried out to study the corrosion resistance of test piece. FTIR and SEM showed that the silane composite film was well formed on the powdery rust surface of the test piece. After self-assembled, the surface of test piece was super-hydrophobic, and the contact angle was increased from 86.3° to 155.2°. About 91.3% of the contact area between the water droplet and the test piece surface was the liquid/gas interface. Only a small part of liquid was in contact with the test piece. The anti-corrosion property of self-assembled test piece was greatly improved. The self-corrosion current density Jcorr of test piece was reduced from 2.58×102 mA/cm2 to 1.081×103 mA/cm2, and the corrosion inhibition efficiency reached 95.81%. The silane composite film could form a protective film on the powdery rust surface of the test piece, so as to isolate the contact between the test piece and the liquid effectively, thus making it super hydrophobic, and improving its corrosion resistance. |
| Close |
|
|
|