Facile preparation of superhydrophobic coatings by sol-gel processes.
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 degrees with low hysteresis (2 degrees ). Water drops rolled easily off their surface at a tilt angle as low as 4 degrees .
Università di Modena e Reggio Emilia, Dipartimento di Ingegneria dei Materiali e dell'Ambiente, Via Vignolese 905/A, 41100 Modena, Italy.
Rosa
R
Taurino
Elena
E
Fabbri
Massimo
M
Messori
Francesco
F
Pilati
Doris
D
Pospiech
Alla
A
Synytska