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Metodo per il trattamento di superfici ceramiche per conferire alle stesse una elevata idrofobicità e oleofobicità

RIF.:10198 (WO2012117386)

Inventori: M. Raimondo, F. Bezzi, M. Blosi, C. Mingazzini

Titolari: Consiglio Nazionale delle Ricerche; ENEA (40%)

Descrizione

A method for the treatment of ceramic surfaces comprising in succession : - a deposition step, in which applied on a ceramic surface is a coating including a metal oxide comprised in the group made up of alumina, silicon dioxide, zirconium dioxide, titanium dioxide, mullite, zinc oxide, yttrium oxide and mixtures thereof; - a first consolidation step, in which the coating is subjected to a temperature of between 150 DEG C and 900 DEG C; - a functionalization step, in which the coating is treated with boiling water and/or with steam for the production of hydroxyl groups; - a second consolidation step, in which the coating is subjected to a temperature of between 150 DEG C and 900 DEG C; - a fluorination step, in which the coating is treated with a fluorinated compound; and - a third consolidation step, in which the coating is subjected to a temperature of between 100 DEG C and 300 DEG C.

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