Journal
COATINGS
Volume 9, Issue 4, Pages -Publisher
MDPI
DOI: 10.3390/coatings9040232
Keywords
electrochemical deposition; Co-Ni coating; super-hydrophobic surface; mechanical durability; corrosion protection
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Funding
- Fundamental Research Funds for the Central Universities China [FRF-TP-18-009A1]
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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 degrees 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.
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