Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/26088
Title: Design of an outstanding super-hydrophobic surface by electro-spinning
Authors: Sarkar, MK
Bal, K
He, F
Fan, J
Keywords: Aspect ratio
Electro-spinning
Nano-beads
Nano-fibers
Superhydrophobic
Water Contact Angle
Issue Date: 2011
Publisher: North-Holland
Source: Applied surface science, 2011, v. 257, no. 15, p. 7003-7009 How to cite?
Journal: Applied surface science 
Abstract: A duel-layer super-hydrophobic surface, comprising polyvinylidene fluoride (PVDF) and fluorinated silane molecules (FSM), was engineered using electro-spinning a coating onto the glass. Scanning electron microscopy was used to confirm that, by reducing the percentage of PVDF in the spraying solution, the aspect ratio of the nano-beads could be changed and a sharp bead profile obtained. Energy dispersive spectroscopy was employed to ensure the maximum amount of FSM was present on the surface, which assists in achieving a high Water Contact Angle. Using a two-step process, involving PVDF and FSM, nano-beads, with high aspect ratio, were formed on a rough surface which produced a super-hydrophobic surface with a Water Contact Angle of 170.2° and a very low Water Roll-off Angle (<1°). Such a coating facilitates the speedy run-off of water drops from a surface and has many potential applications in buildings and other areas.
URI: http://hdl.handle.net/10397/26088
ISSN: 0169-4332
EISSN: 1873-5584
DOI: 10.1016/j.apsusc.2011.03.057
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