Superhydrophobic surfaces having two-fold adjustable roughness prepared in a single step.
A fast and reliable method is reported for fabricating superhydrophobic surfaces. The method combines microstructure replication with polymer phase inversion and can be applied to a wide variety of polymers. This method provides a surface that contains roughness on two independently controllable levels, i.e., the microstructure level and the level of porosity stemming from the phase inversion. Both levels were optimized separately, resulting in water contact angles up to 167 degrees.
Membrane Technology Group, Faculty of Science and Technology, University of Twente, P.O. Box 217, Enschede, NL 7500 AE, The Netherlands.
Laura
L
Vogelaar
Rob G H
RG
Lammertink
Matthias
M
Wessling
D057927:Hydrophobic and Hydrophilic Interactions; D011108:Polymers / Q000737:chemistry*; D017155:Wettability
D011108:Polymers