DSpace
 

DSpace at IIT Bombay >
IITB Publications >
Article >

Please use this identifier to cite or link to this item: http://dspace.library.iitb.ac.in/jspui/handle/10054/1714

Title: Development and characterization of poly ethyl metha acrylate–iron oxide(III) based hydrophobic liquid nanocomposite films
Authors: SHARMA, MUNISH KUMAR
ROY, SANDIP
KHILAR, KC
Keywords: contact angle
glass
hydrophobicity
iron oxides
morphology
nanocomposites
Issue Date: 2009
Publisher: Elsevier
Citation: Colloids and Surfaces A: Physicochemical and Engineering Aspects 346(1-3), 123-129
Abstract: Select applications of hydrophobic nanocomposites include preparation of robust self-cleaning surfaces, water-repellent glass surfaces, and waterproofing textiles. Various nanocomposites have been reported in the literature; however, the relationship between the nanocomposite surface morphology and its hydrophobicity needs to be understood better. In the present work Fe2O3 nanoparticles and poly ethyl metha acrylate (PEMA) were used in varying proportions to obtain a series of model hydrophobic surfaces (spin-coated on glass substrate). The hydrophobicity of these surfaces was measured by static contact angle; a maximum of ∼103° was obtained at highest loading of iron oxide nanoparticles. These surfaces were also characterized using AFM. The contact angle and characterization data were used to test some of the models which have been proposed in the recent literature on prediction of contact angle for composite surfaces. It is proposed that the hydrophobicity of the iron oxide–PEMA surface is due to the physical roughness causing air entrapment as well as the chemical heterogeneity. Based on the experimental studies and the simulations using the recent models on contact angle, some general features of relationship between a composite surface morphology and its hydrophobicity is proposed.
URI: http://dx.doi.org/10.1016/j.colsurfa.2009.06.002
http://hdl.handle.net/10054/1714
http://dspace.library.iitb.ac.in/xmlui/handle/10054/1714
ISSN: 0927-7757
Appears in Collections:Article

Files in This Item:

File Description SizeFormat
5233.pdf1.49 MBAdobe PDFView/Open
View Statistics

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

 

Valid XHTML 1.0! DSpace Software Copyright © 2002-2010  Duraspace - Feedback