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Issue 6, 2012
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Extreme water repellency of nanostructured low-surface-energy non-woven fabrics

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Abstract

We report the extreme water repellent nature of non-woven fabrics of PET (polyethyleneterephthalate) whose fiber surfaces are nanotextured with oxygen plasma and coated with a low-surface-energy nanofilm. The surface effectively suppresses vapor condensation and repels condensed water droplets in addition to exhibiting a high contact angle and a low contact angle hysteresis with a millimetre-sized water drop. We also show that the surface maintains its superhydrophobicity after water-vapor condensation and after oil-wetting due to high-aspect-ratio nanohairs on the fibers. The superior water-repellent ability of the plasma treated non-woven fabric can be exploited in a variety of industrial applications including water harvesting and fuel cell water management even under oily contaminations.

Graphical abstract: Extreme water repellency of nanostructured low-surface-energy non-woven fabrics

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Article information


Submitted
30 Sep 2011
Accepted
11 Nov 2011
First published
21 Dec 2011

Soft Matter, 2012,8, 1817-1823
Article type
Paper

Extreme water repellency of nanostructured low-surface-energy non-woven fabrics

B. Shin, K. Lee, M. Moon and H. Kim, Soft Matter, 2012, 8, 1817
DOI: 10.1039/C1SM06867A

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