Super-Hydrophobic Co–Ni Coating with High Abrasion Resistance Prepared by Electrodeposition

Although super-hydrophobic surfaces have great application prospects in industry, their preparation cost and mechanical durability have limited their practical utilization. In this work, we presented a new low-cost process preparation for super-hydrophobic Co–Ni coating on carbon steel substrate via...

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Bibliographic Details
Published in:Coatings (Basel) 2019-04, Vol.9 (4), p.232
Main Authors: Xue, Yanpeng, Wang, Shuqiang, Bi, Peng, Zhao, Guochen, Jin, Ying
Format: Article
Language:English
Subjects:
Abrasion resistant coatings
Abrasion resistant steels
Carbon steel
Carbon steels
Coated electrodes
Cobalt
Contact angle
Corrosion potential
Corrosion prevention
Corrosion resistance
Electrodeposition
Electrodes
Hydrophobic surfaces
Hydrophobicity
Morphology
Nickel coatings
Substrates
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Summary:Although super-hydrophobic surfaces have great application prospects in industry, their preparation cost and mechanical durability have limited their practical utilization. In this work, we presented a new low-cost process preparation for super-hydrophobic Co–Ni coating on carbon steel substrate via an electrodeposition route. The deposited Co–Ni coating with cauliflower-shaped micro-nano structures exhibited high super-hydrophobic properties with water contact angles over 161° after modification with 1H,1H,2H,2H-Perfluorooctyltrichlorosilane (PFTEOS). Evaluated by the linear abrasion methods, the super-hydrophobic coating can maintain super-hydrophobicity after abrasion distance of 12 m under the applied pressure of 5 kPa, which was attributed to the high cobalt content of the Co–Ni coating. Moreover, electrochemical tests showed that the super-hydrophobic Co–Ni coatings exhibited a good anti-corrosion performance thus providing an adequate protection to the carbon steel substrates.
ISSN:2079-6412
2079-6412
DOI:10.3390/coatings9040232