Nano Archive

Superhydrophobic bionic surfaces with hierarchical microsphere/SWCNT composite arrays

Li, Yue and Huang, Xing Jiu and Heo, Sung Hwan and Li, Cun Cheng and Choi, Yang Kyu and Cai, Wei Ping and Cho, Sung Oh (2007) Superhydrophobic bionic surfaces with hierarchical microsphere/SWCNT composite arrays. LANGMUIR, 23 (4). pp. 2169-2174.

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Official URL: http://dx.doi.org/10.1021/la0620758

Abstract

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.

Item Type:Article
Subjects:Material Science > Functional and hybrid materials
Material Science > Nanofabrication processes and tools
Material Science > Nanostructured materials
ID Code:3063
Deposited By:Anuj Seth
Deposited On:13 Jan 2009 14:57
Last Modified:20 Jan 2009 15:25

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