Browse

A geometry controllable approach for the fabrication of biomimetic hierarchical structure and its superhydrophobicity with near-zero sliding angle

Cited 23 time in Web of Science Cited 25 time in Scopus
Authors
Choi, Se-Jin; Suh, Kahp Y.; Lee, Hong H.
Issue Date
2008-05-27
Publisher
Institute of Physics
Citation
Nanotechnology 19 275305
Keywords
SURFACESTOPOGRAPHYCREATION
Abstract
A simple, geometry controllable method is presented for fabricating multiscale hierarchical polymer structures that exhibit superhydrophobic water-repellent properties with near-zero sliding angle over a large area. A UV-assisted micromolding technique is used to create a microtexture with an ultraviolet (UV)-curable resin containing Al2O3 nanoparticles. A subsequent treatment of ultraviolet ozone (UVO) leads to the formation of nanoscale roughness over the as-formed microstructured surface, resulting in a dual-scale surface texture similar to a lotus leaf, in a reproducible manner. After hydrophobization with a self-assembled monolayer (SAM) in the liquid phase, this hierarchical surface exhibits stable superhydrophobic characteristics, having a water contact angle close to 160 degrees and a contact angle (CA) hysteresis as low as 1 degrees. These characteristics did not change even after exposure to ambient conditions for 6 months.
ISSN
0957-4484
Language
English
URI
http://hdl.handle.net/10371/9623
DOI
https://doi.org/10.1088/0957-4484/19/27/275305
Files in This Item:
There are no files associated with this item.
Appears in Collections:
College of Engineering/Engineering Practice School (공과대학/대학원)Dept. of Mechanical Aerospace Engineering (기계항공공학부)Journal Papers (저널논문_기계항공공학부)
  • mendeley

Items in S-Space are protected by copyright, with all rights reserved, unless otherwise indicated.

Browse