Surface adhesive forces: a metric describing the drag-reducing effects of superhydrophobic coatings

Mengjiao Cheng; Mengmeng Song; Hongyu Dong; Feng Shi

doi:10.1002/smll.201402618

Surface adhesive forces: a metric describing the drag-reducing effects of superhydrophobic coatings

Small. 2015 Apr 8;11(14):1665-71. doi: 10.1002/smll.201402618. Epub 2014 Nov 22.

Authors

Mengjiao Cheng¹, Mengmeng Song, Hongyu Dong, Feng Shi

Affiliation

¹ State Key Laboratory of Chemical Resource Engineering & Key Laboratory of Carbon Fiber and Functional Polymer, Ministry of Education, Beijing University of Chemical Technology, Beijing, 100029, China.

PMID: 25418808
DOI: 10.1002/smll.201402618

Abstract

Nanomaterials with superhydrophobic properties are promising as drag-reducing coatings. However, debates regarding whether superhydrophobic surfaces are favorable for drag reduction require further clarification. A quantified water adhesive force measurement is proposed as a metric and its effectiveness demonstrated using three typical superhydrophobic coatings on model ships with in situ sailing tests.

Keywords: adhesive forces; coatings; drag reduction; polydimethylsiloxane; superhydrophobicity.

Publication types

Research Support, Non-U.S. Gov't