Super Water-Repellent Surfaces: Potential Application to Drag Reduction of Yachts

ISSN: 1874-4656 (Online)
ISSN: 1874-4648 (Print)

Volume 10, 3 Issues, 2017

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Recent Patents on Materials Science

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Super Water-Repellent Surfaces: Potential Application to Drag Reduction of Yachts

Recent Patents on Materials Science, 7(1): 71-76.

Author(s): Ke Zhang, Zheng-Chuang Wang, Ya-Nan Zhang, Fang-Fang Zhang, Yi-Fan Hou and Hu Yan.

Affiliation: College of Chemistry and Molecular Engineering, Zhengzhou University, 100 Kexue Road, Zhengzhou 450001, P.R. China.


We fabricated miniature yachts whose bottoms are coated with different water contact angle-materials, and investigated on the direct correlation between the water contact angle and the sailing velocity. As a result, the sailing velocity increased with increasing in the water contact angle of the yacht bottom. We considered that the rough surface of the yacht bottom, coated with the dispersion containing super water-repellent silica nanoparticles, may decrease contact area with water, resulting in drag reduction and subsequently increasing the sailing velocity. We also briefly reviewed recent patents (US0330340 (2010); US8258206 (2012); US6994045 (2006); US20120247383 (2012); CN200780042283 (2011); CN201110396837 (2011); CN201110167924 (2011); CN201010555247 (2011); WO2012015700 (2012)) on drag reduction by super water-repellent surfaces in this paper.


Drag reduction, fractal structure, friction, super water-repellency, wettability, yacht.

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Article Details

Volume: 7
Issue Number: 1
First Page: 71
Last Page: 76
Page Count: 6
DOI: 10.2174/18744648113066660019

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