Abstract
A superhydrophobic magnesium alloy (AZ91) is successfully fabricated by sulfuric acid etching, AgNO3 treatment, and dodecyl mercaptan (DM) modification. The effect of the fabrication procedure, the concentration and treatment time of sulfuric acid, AgNO3, and DM on morphology, phase structure, surface wettability, and surface composition of the AZ91 is investigated in detail. Consequently, the optimal treatment parameters are selected, and the superhydrophobic magnesium alloy with a water contact angle of 154° and a sliding angle of 5° is fabricated. The acid etching endows the AZ91 surface with rough structure while the AgNO3 treatment results in more protrusions and grooves. Meanwhile, the long hydrophobic alkyl chains are self-assembled onto the rough AZ91 surface upon DM modification. As a result, the multilayer of netlike surface with protrusions and grooves together with the coral-like structure is obtained. Additionally, the magnesium alloy with higher water contact angle has better corrosion resistance, while the magnesium alloy with the superhydrophobic property has the best corrosion resistance.
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References
W. Li, Z.X. Kang, Fabrication of corrosion resistant superhydrophobic surface with self-cleaning property on magnesium alloy and its mechanical stability. Surf. Coat. Technol. 253, 205–213 (2014)
L.C. Zhao, C.X. Cui, X. Wang, S.J. Liu, S.J. Bu, Q.Z. Wang, Y.M. Qi, Corrosion resistance and calcium–phosphorus precipitation of micro-arc oxidized magnesium for biomedical applications. Appl. Surf. Sci. 330, 431–438 (2015)
M.A. Taleghani, J.M. Torralba, The microstructural evolution of a pre-alloyed AZ91 magnesium alloy powder through high-energy milling and subsequent isothermal annealing. Mater. Lett. 98, 182–185 (2013)
T. Ishizaki, J. Hieda, N. Saito, N. Saito, O. Takai, Corrosion resistance and chemical stability of super-hydrophobic film deposited on magnesium alloy AZ31 by microwave plasma-enhanced chemical vapor deposition. Electrochim. Acta 55, 7094–7101 (2010)
T. Ishizaki, Y. Masuda, M. Sakamoto, Corrosion resistance and durability of superhydrophobic surface formed on magnesium alloy coated with nanostructured cerium oxide film and fluoroalkylsilane molecules in corrosive NaCl aqueous solution. Langmuir 27, 4780–4788 (2011)
Z.J. Li, X.N. Gu, S.Q. Lou, Y.F. Zheng, The development of binary Mg–Ca alloys for use as biodegradable materials within bone. Biomaterials 29, 1329–1344 (2008)
M.A. Lopez, M.D. Pereda, J.A.D. Valle, M.F. Lorenzo, M.C.G. Alonso, O.A. Ruano, Corrosion behaviour of AZ31 magnesium alloy with different grain sizes in simulated biological fluids. Acta Biomater. 6, 1763–1771 (2010)
Y.W. Song, D.Y. Shan, E.H. Han, Electrodeposition of hydroxyapatite coating on AZ91D magnesium alloy for biomaterial application. Mater. Lett. 62, 3276–3279 (2008)
L. Zhao, Q. Liu, R. Gao, One-step method for the fabrication of superhydrophobic surface on magnesium alloy and its corrosion protection, antifouling performance. Corros. Sci. 80, 177–183 (2014)
J.E. Gray, B. Luan, Protective coatings on magnesium and its alloys—a critical review. J. Alloys Compd. 336, 88–113 (2002)
Z.X. She, Q. Li, Z.W. Wang, Researching the fabrication of anticorrosion superhydrophobic surface on magnesium alloy and its mechanical stability and durability. Chem. Eng. J. 228, 415–424 (2013)
Q. Zhu, Q.M. Pan, F.T. Liu, Facile removal and collection of oils from water surfaces through superhydrophobic and superoleophilic sponges. J. Phys. Chem. C 115, 17464–17471 (2011)
J. Li, X.H. Liu, Y.P. Ye, H.D. Zhou, J.M. Chen, Gecko-inspired synthesis of superhydrophobic ZnO surfaces with high water adhesion. Colloids Surf. A 384, 109–114 (2011)
S. Jung, M. Dorrestijn, D. Raps, A. Das, C.M. Megaridis, D. Poulikakos, Are superhydrophobic surfaces best for icephobicity? Langmuir 27, 3059–3066 (2011)
D. Nyström, J. Lindqvist, E. Östmark, P. Antoni, A. Carlmark, A. Hult, E. Malmström, Superhydrophobic and self-cleaning bio-fiber surfaces via ATRP and subsequent postfunctionalization. ACS Appl. Mater. Interfaces 1, 816–823 (2009)
L.J. Liu, F.Y. Xu, L. Ma, Facile fabrication of a superhydrophobic Cu surface via a selective etching of high-energy facets. J. Phys. Chem. C 116, 18722–18727 (2012)
S. Yagi, A. Sengoku, K. Kubota, E. Matsubara, Surface modification of ACM522 magnesium alloy by plasma electrolytic oxidation in phosphate electrolyte. Corros. Sci. 57, 74–80 (2012)
W. Barthlott, C. Neinhuis, Purity of the sacred lotus, or escape from contamination in biological surfaces. Planta 202, 1–8 (1997)
Y.M. Zheng, X.F. Gao, L. Jiang, Directional adhesion of superhydrophobic butterfly wings. Soft Matter 3, 178–185 (2007)
K.S. Liu, X. Yao, L. Jiang, Recent developments in bio-inspired special wettability. Chem. Soc. Rev. 39, 3240–3255 (2010)
L.B. Feng, Y.H. Liu, H.X. Zhang, Y.P. Wang, X.H. Qiang, Superhydrophobic alumina surface with high adhesive force and long-term stability. Colloids Surf. A 410, 66–71 (2012)
Y.W. Song, D.Y. Shan, E.H. Han, High corrosion resistance of electroless composite plating coatings on AZ91D magnesium alloys. Electrochim. Acta 53, 2135–2143 (2008)
L.B. Feng, Y.H. Che, Y.H. Liu, X.H. Qiang, Y.P. Wang, Fabrication of superhydrophobic aluminium alloy surface with excellent corrosion resistance by a facile and environment-friendly method. Appl. Surf. Sci. 283, 367–374 (2013)
J.L. Song, W.J. Xu, Y. Lu, X. Liu, J. Sun, Fabrication of superhydrophobic surfaces on Mg alloy substrates via primary cell corrosion and fluoroalkylsilane modification. Mater. Corros. 64, 979–987 (2013)
L.B. Feng, H.X. Zhang, Z.L. Wang, Y.H. Liu, Superhydrophobic aluminum alloy surface: fabrication, structure, and corrosion resistance. Colloids Surf. A 441, 319–325 (2014)
Q.W. Chu, J. Liang, J.C. Hao, Facile fabrication of a robust super-hydrophobic surface on magnesium alloy. Colloids Surf. A 443, 118–122 (2014)
Z.W. Wang, Y.L. Su, Q. Li, Y. Liu, Z.X. She, F.N. Chen, L.Q. Li, P. Zhang, Researching a highly anti-corrosion superhydrophobic film fabricated on AZ91D magnesium alloy and its anti-bacteria adhesion effect. Mater. Charact. 99, 200–209 (2015)
Z.X. She, Q. Li, Z.W. Wang, L.Q. Li, F.N. Chen, J.C. Zhou, Novel method for controllable fabrication of a superhydrophobic CuO surface on AZ91D magnesium alloy. ACS Appl. Mater. Interfaces 4, 4348–4356 (2012)
X. Deng, L. Mammen, H. Butt, D. Vollmer, Candle soot as a template for a transparent robust superamphiphobic coating. Science 335, 67–70 (2012)
W.J. Xu, J.L. Song, J. Sun, Rapid fabrication of large-area, corrosion-resistant superhydrophobic Mg alloy surfaces. ACS Appl. Mater. Interfaces 3, 4404–4414 (2011)
A.B.D. Cassie, S. Baxter, Wettability of porous surfaces. Trans. Faraday Soc. 44, 546–551 (1944)
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This research is supported by National Natural Science Foundation of China (Grant No. 21161012).
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Feng, L., Zhu, Y., Fan, W. et al. Fabrication and corrosion resistance of superhydrophobic magnesium alloy. Appl. Phys. A 120, 561–570 (2015). https://doi.org/10.1007/s00339-015-9215-z
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DOI: https://doi.org/10.1007/s00339-015-9215-z