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A Cost‐Effective Approach to Fabricate Superhydrophobic Coatings Using Hydrophilic Materials
Author(s) -
Gong Xiao,
Bartlett Austin,
Kozbial Andrew,
Li Lei
Publication year - 2016
Publication title -
advanced engineering materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.938
H-Index - 114
eISSN - 1527-2648
pISSN - 1438-1656
DOI - 10.1002/adem.201500313
Subject(s) - materials science , superhydrophobic coating , contact angle , coating , nanotechnology , wetting , composite material
Superhydrophobic coatings have many important applications and previous studies have shown that both hydrophobic material and certain surface topographical features are required to achieve the desired superhydrophobicity. Here, we report a simple and cost‐effective approach to fabricate superhydrophobic coatings using alumina powders, which are intrinsically hydrophilic. The water contact angle (WCA) of the coating is close to 150° and the observed superhydrophobicity has been attributed to both the powder‐induced surface topographical features and the airborne hydrocarbon contamination. This work provides a facile yet robust approach to fabricate superhydrophobic coatings, which is potentially applicable for many other hydrophilic materials.