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°
Facile preparation of superhydrophobic coatings by sol-gel processes / Taurino, Rosa; Fabbri, E; Messori, M; Pilati, F; Pospiech, D; Synytska, A.. - In: JOURNAL OF COLLOID AND INTERFACE SCIENCE. - ISSN 0021-9797. - 325:1(2008), pp. 149-156.
Facile preparation of superhydrophobic coatings by sol-gel processes
TAURINO, Rosa;
2008-01-01
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°I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
