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Fabrication of biomimetic super-hydrophobic surface on aluminum alloy

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Abstract

Inspired by microstructure characteristics of surfaces of typical plant leaves such as petal of red rose, the biomimetic super-hydrophobic surface of aluminum alloy has been successfully fabricated by laser processing and surface modification by DTS (CH3(CH2)11Si(OCH3)3). The morphological features, chemical composition, and super-hydrophobicity of resultant surfaces were characterized by scanning electron microscopy, X-ray photoelectron spectroscopy, and water contact angle measurements. The super-hydrophobic surface exhibited a microstructure consisting of myriad micro-scale crater-like pits. It is found that the super-hydrophobicity is synchronously governed by both the surface chemical composition and geometrical microstructure structures. The highest water contact angle of resultant surface reaches as high as 161.0°. Moreover, corrosion resistance property of these prepared films against NaCl solution is elucidated using electrochemical measurements; it is found that the corrosion resistance of aluminum alloy is also considerably improved.

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Acknowledgements

This work was supported by the National Natural Science Foundation of China (Nos. 51275555, 50905071 and 51075184).

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Authors and Affiliations

  1. Key Laboratory of Bionic Engineering (Ministry of Education), Jilin University, Changchun, 130022, People’s Republic of China

    Yan Liu, Jindan Liu, Shuyi Li, Zhiwu Han & Luquan Ren

  2. College of Mechanical and Electronic Engineering, China University of Petroleum, Qingdao, 266555, People’s Republic of China

    Sirong Yu

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  1. Yan Liu
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  2. Jindan Liu
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Correspondence to Yan Liu.

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Liu, Y., Liu, J., Li, S. et al. Fabrication of biomimetic super-hydrophobic surface on aluminum alloy. J Mater Sci 49, 1624–1629 (2014). https://doi.org/10.1007/s10853-013-7845-0

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  • DOI: https://doi.org/10.1007/s10853-013-7845-0

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