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24 November 2003 Optically transparent superhydrophobic silica-based coatings
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Abstract
Optically transparent superhydrophobic silica-based coatings were obtained by means of sol-gel processing and self-assembling. Superhydrophobicity was achieved through a combination of enhanced surface roughness by incorporating nanoclusters and modification of surface chemistry by self-assembly. The self-assembly monolayer (SAM) was prepared using the chemical coupling reaction between chlorosilyl groups and hydroxylated coating surface. The optical transparence of such hydrophobic coatings was found to be higher than 95%, which is attributed to the fact that the roughness scale is too small to scatter the visible light. The water contact angle was of approximately 150°.
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Mary H. Shang, Ying Wang, Steven J. Limmer, Tammy P. Chou, and Guozhong Cao "Optically transparent superhydrophobic silica-based coatings", Proc. SPIE 5224, Nanomaterials and Their Optical Applications, (24 November 2003); https://doi.org/10.1117/12.524191
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