Journal
ADVANCED MATERIALS INTERFACES
Volume 4, Issue 16, Pages -Publisher
WILEY
DOI: 10.1002/admi.201700190
Keywords
coatings; oil-water separation; self-cleaning; superhydrophobicity
Funding
- National Natural Science Foundation of China [21104069]
- Fundamental Research Funds for the Central Universities [WUT: 2017IVA089]
- State Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology [SYSJJ2017-01]
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Superhydrophobicity induced by surface micro- and nanostructure has many important applications in antisticking, self-cleaning, and oil-water separation. Here, a facile method of fabricating periodic droplet structured patterns on polymer thin films is reported. Once SiO2 nanoparticles are coated on this microstructured film surface, periodic ring structured patterns are formed on the coating surface, which exhibits extremely superhydrophobic behavior with low water adhesion. The water contact angle of the coating can reach up to almost 170 degrees and water droplet can fully rebound from the superhydrophobic surface. This work provides a facile yet robust approach to fabricate superhydrophobic coatings. Moreover, the results show that the coatings can be applicable to self-cleaning and oil-water separation.
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