Abstract
Shark skin has attracted worldwide attention because of its superior drag reduction, antifouling performance induced from its unique surface morphology. Although the vivid shark skin has been fabricated by a bio-replicated micro-imprinting approach in previous studies and superior drag reduction effect has been validated in water tunnel, continuous large-area fabrication is still an obstacle to wide apply. In this paper, one novel bio-replication coating technology is proposed for large-area transfer of shark skin based on rapid UV curable paint. Apart from design of coating system, bio-replication accuracy of surface morphology was validated about 97% by comparison between shark skin template and coating surface morphology. Finally, the drag reduction and anti-fouling function of coating surface were tested in water tunnel and open algae pond respectively. Drag reduction rate of coating surface was validated about 12% higher and anti-fouling was proved to about hundred times ameliorate, all of which are more excellent than simple 2D riblet surface.
| Original language | English |
|---|---|
| Pages (from-to) | 124-131 |
| Number of pages | 8 |
| Journal | Applied Surface Science |
| Volume | 316 |
| Issue number | 1 |
| DOIs | |
| State | Published - 2014 |
Keywords
- Anti-fouling
- Bio-replication
- Drag reduction
- Large-area fabrication
- Shark skin
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