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A simple and cost-effective method for fabricating lotus-effect composite coatings

Year: 2012

Journal: Journal of coating technology and research, 2012, 9 (2) pp 135-141, 20130115

Authors: Changhong Su

Organizations: Department of material science, School of material science and engineering, Shandong University of technology, Zibo 255049 China

This paper reports the fabrication of a lotus-effect coating by grafting epoxy (EP) resin on the surface of microsilica and nanosilica, respectively, and subsequent spraying. The coating shows the same structure and capability as lotus leaves, and shows a static contact angle as large as 165° and a sliding angle as small as 2.5°. SEM analysis shows that the hydrophobic capability depends on the surface structure of the coatings. This method may be suited for processing large scale or irregular surfaces.