Different organic/inorganic compositions and deposition methods were used to prepare superhydrophobic surfaces using metal alkoxides and the sol-gel process. Both surface roughness and composition had to be adjusted in order to obtain very high contact angles and low contact angle hysteresis as a necessary requirement for superhydrophobicity. Multilayer samples with a fluorinated organic-inorganic top layer showed water contact angles of about 157° with low hysteresis (2°). Water drops rolled easily off their surface at a tilt angle as low as 4°. © 2008 Elsevier Inc. All rights reserved.
Facile preparation of superhydrophobic coatings by sol-gel processes / Taurino R.; Fabbri E.; Messori M.; Pilati F.; Pospiech D.; Synytska A.. - In: JOURNAL OF COLLOID AND INTERFACE SCIENCE. - ISSN 0021-9797. - ELETTRONICO. - 325:(2008), pp. 149-156. [10.1016/j.jcis.2008.05.007]
Facile preparation of superhydrophobic coatings by sol-gel processes
Taurino R.;Pilati F.;
2008
Abstract
Different organic/inorganic compositions and deposition methods were used to prepare superhydrophobic surfaces using metal alkoxides and the sol-gel process. Both surface roughness and composition had to be adjusted in order to obtain very high contact angles and low contact angle hysteresis as a necessary requirement for superhydrophobicity. Multilayer samples with a fluorinated organic-inorganic top layer showed water contact angles of about 157° with low hysteresis (2°). Water drops rolled easily off their surface at a tilt angle as low as 4°. © 2008 Elsevier Inc. All rights reserved.
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