Fabrication of anodized superhydrophobic 5083 aluminum alloy surface for marine anti-corrosion and anti-biofouling |
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Authors: | Zhang Jie Wang Jia Zhang Binbin Zeng Yuxiang Duan Jizhou Hou Baorong |
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Institution: | 1.CAS Key Laboratory of Marine Environmental Corrosion and Biofouling, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, 266071, China ;2.Open Studio for Marine Corrosion and Protection, Pilot National Laboratory for Marine Science and Technology, Qingdao, 266237, China ;3.University of Chinese Academy of Sciences, Beijing, 100049, China ;4.Center for Ocean Mega-Science, Chinese Academy of Sciences, Qingdao, 266071, China ; |
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Abstract: | Marine corrosion and biofouling seriously affect the service life of marine structural materials,resulting in performance failure,enormous economic loss,and even catastrophic safety accidents.It is worthwhile and desirable to develop high-efficiency strategy for anti-corrosion and anti-biofouling.In this paper,superhydrophobic 5083 aluminum alloy(AA5083) surface with micro-nano hierarchical morphology was fabricated through anodization followed by 1 H,1 H,2 H,2 H-perfluorooctyltriethoxysilane(POTS)modification.The surface morphologies,roughness,and chemical compositions were revealed by scanning electron microscopy,atomic force microscopy,and X-ray diffraction.The self-cleaning ability,corrosion resistance and algae adhesion suppression ability of the fabricated surfaces were investigated,indicating an excellent water-proofing,anti-corrosion and anti-biofouling performance.We believe the superhydrophobic creation of metallic materials is expected to have potential applications in marine corrosion and antibiofouling fields. |
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