Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/28053
Title: Differential superhydrophobicity and hydrophilicity on a thin cellulose layer
Authors: Sarkar, MK
He, F
Fan, J
Keywords: Atomic force microscopy
Cellulosic materials
Electrostatic spray deposition
Hydrophilicity
Permeability
Superhydrophobicity
Water contact angle
Issue Date: 2010
Publisher: Elsevier
Source: Thin solid films, 2010, v. 518, no. 18, p. 5033-5039 How to cite?
Journal: Thin solid films 
Abstract: Here we have developed cellulosic materials (cotton fabric or paper) with differential superhydrophobicity and hydrophilicity on each side of the surfaces by coating with polyvinylidene fluoride and fluorinated silane molecules using electro-spraying. Such materials are advantageous in various textile and medical applications. Analysis of surface morphology indicated that, not only surface chemical property and roughness, but also particle diameter affects surface superhydrophobicity. Smaller particle diameter enhances superhydrophobicity, if the surface roughness and surface chemical property remain constant. By controlling these three factors, superhydrophobicity with a water contact angle of more than 160° can be achieved at one side of a thin cellulosic material while maintaining the hydrophilicity (contact angle is 0°) at the opposite side.
URI: http://hdl.handle.net/10397/28053
ISSN: 0040-6090
EISSN: 1879-2731
DOI: 10.1016/j.tsf.2010.02.021
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