| CUI Ri-jun,QIN Jing,QU Jun-e,WANG Hai-ren,CAO Zhi-yong,LIU Shao-bo.Preparation of Super-hydrophobic Colored Surface on a Stainless Steel Matrix[J],47(2):30-35 |
| Preparation of Super-hydrophobic Colored Surface on a Stainless Steel Matrix |
| Received:July 27, 2017 Revised:February 20, 2018 |
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| DOI：10.16490/j.cnki.issn.1001-3660.2018.02.006 |
| KeyWord:stainless steel super-hydrophobicity colored film INCO method |
| Author | Institution |
| CUI Ri-jun |
School of Materials Science and Engineering, Hubei University, Wuhan , China |
| QIN Jing |
School of Materials Science and Engineering, Hubei University, Wuhan , China |
| QU Jun-e |
School of Materials Science and Engineering, Hubei University, Wuhan , China |
| WANG Hai-ren |
School of Materials Science and Engineering, Hubei University, Wuhan , China |
| CAO Zhi-yong |
School of Materials Science and Engineering, Hubei University, Wuhan , China |
| LIU Shao-bo |
School of Materials Science and Engineering, Hubei University, Wuhan , China |
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| Abstract: |
| The work aims to overcome disadvantages of ordinary colored stainless steel surface, i.e., high surface energy and easily being contaminated by preparing super-hydrophobic colored surface on the stainless steel matrix. Micro/nano multi-scale dual microstructure was established on stainless steel surface in a simple method of chemical etching, on this basis, a micro/nano structured colored film was further established on the surface in the method of chromic acid oxidation (INCO method). Finally, after being modified with perfluorinated silane, a rough surface similar to lotus leaf surface of low surface energy was obtained. Effects of chemical etching pretreatment on coloring performance, microstructure, surface wettability and corrosion resistance of the stainless steel surface were studied with coloring potential-coloring time curves, scanning electron microscopy (SEM), X-ray photoelectron spectroscopy (XPS), and contact angle tester. The chemical etching treatment could slow down coloring rate, and made end color changed slightly. After being colored, the surface retained the micro/nano structure. After modification with perfluorinated silane molecules, a super hydrophobic colored stainless steel surface with water contact angle of 152.6° was ob-tained, which showed better corrosion resistance than the ordinary colored stainless steel surface. In conclusion, the su-per-hydrophobic colored stainless steel surface is successfully prepared. |
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