Superhydrophobic bionic surfaces with hierarchical microsphere/SWCNT composite arrays

Superhydrophobic bionic surfaces with hierarchical micro/nano structures were synthesized by decorating single-walled or multiwalled carbon nanotubes (CNTs) on monolayer polystyrene colloidal crystals using a wet chemical self-assembly technique and subsequent surface treatment with a low surface-energy material of fluoroalkylsilane. The bionic surfaces are based on the regularly ordered colloidal crystals, and thus the surfaces have a uniform superhydrophobic property on the whole surface. Moreover, the wettability of the bionic surface can be well controlled by changing the distribution density of CNTs or the size of polystyrene microspheres. The morphologies of the synthesized bionic surfaces bear much resemblance to natural lotus leaves, and the wettability exhibited remarkable superhydrophobicity with a water contact angle of about 165 degrees and a sliding angle of 5 degrees.
Publisher
AMER CHEMICAL SOC
Issue Date
2007-02
Language
English
Keywords

ORDERED PORE ARRAYS; CARBON NANOTUBES; THIN-FILMS; WETTABILITY; FABRICATION; TOPOGRAPHY; PARTICLES; COLLOIDS; SENSORS; LOTUS

Citation

LANGMUIR, v.23, no.4, pp.2169 - 2174

ISSN
0743-7463
DOI
10.1021/la0620758
URI
http://hdl.handle.net/10203/3250
Appears in Collection
NE-Journal Papers(저널논문)EE-Journal Papers(저널논문)
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