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Please use this identifier to cite or link to this item: http://dspace.library.iitb.ac.in/jspui/handle/100/3064

Title: Effect of nano-zno addition on the silicone-modified alkyd-based waterborne coatings on its mechanical and heat-resistance properties
Authors: DHOKE, SK
BHANDARI, R
KHANNA, AS
Keywords: waterborne coatings
nano-zno
heat-resistance
Issue Date: 2009
Publisher: ELSEVIER SCIENCE SA
Citation: PROGRESS IN ORGANIC COATINGS,64(1)39-46
Abstract: A silicone-modified alkyd-based waterborne coating was developed using hexamethylmethoxymelamine (HMMM) as crosslinking agent and para-toluene sulphonic acid (p-TSA) as catalyst. The crosslinking ratio for resin and HMMM was fixed to 70:30, based on FTIR and DSC studies. Nano-ZnO particles were added to this system in different concentrations. The coatings with nano-ZnO particles were characterized using FTIR and DSC. The nano-composite coatings were applied on mild steel panels and were cured at 130 degrees C for 30 min. The coatings were evaluated for their mechanical and heat-resistance properties. They were exposed to 350 degrees C for 10min followed by water quenching. The process was repeated for 10 cycles. Heat-resistance property of the coatings was examined by TGA. Also, surface morphological changes were assessed using SEM and optical microscopy. It was found that the heat-resistance and mechanical properties of the coatings improved significantly as a function of nano-ZnO addition. (C) 2008 Elsevier B.V. All rights reserved.
URI: http://dx.doi.org/10.1016/j.porgcoat.2008.07.007
http://dspace.library.iitb.ac.in/xmlui/handle/10054/13856
http://hdl.handle.net/100/3064
ISSN: 0300-9440
Appears in Collections:Review

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