Organic-inorganic hybrid coatings on glass substrates with superhydrophobic properties and with improved scratch resistance were obtained by means of applying a multilayer approach including multiple sol-gel processes. The coatings exhibited a water contact angle (WCA) higher than 150 degrees. Ultraviolet (UV)-curable vinyl ester resins and vinyltriethoxysilane (VTEOS) as coupling agent were employed to increase the adhesion between substrate and the inorganic layers. The surfaces were characterized by means of dynamic contact angle and roughness measurements. Indeed, the occurrence of superhydrophobic behavior was observed. The scratch resistance of the hybrid coatings was tested to evaluate the adhesion of the coatings to the glass substrate. The proposed preparation method for scratch resistant, mechanically stable, superhydrophobic coatings is simple and can be applied on large areas of different kinds of substrates.
Preparation of scratch resistant superhydrophobic hybrid coatings by sol-gel process / Taurino, Rosa; Fabbri, Elena; Pospiech, Doris; Synytska, Alla; Messori, Massimo. - In: PROGRESS IN ORGANIC COATINGS. - ISSN 0300-9440. - STAMPA. - 77:11(2014), pp. 1635-1641. [10.1016/j.porgcoat.2014.05.009]
Preparation of scratch resistant superhydrophobic hybrid coatings by sol-gel process
TAURINO, Rosa;FABBRI, Elena;MESSORI, Massimo
2014
Abstract
Organic-inorganic hybrid coatings on glass substrates with superhydrophobic properties and with improved scratch resistance were obtained by means of applying a multilayer approach including multiple sol-gel processes. The coatings exhibited a water contact angle (WCA) higher than 150 degrees. Ultraviolet (UV)-curable vinyl ester resins and vinyltriethoxysilane (VTEOS) as coupling agent were employed to increase the adhesion between substrate and the inorganic layers. The surfaces were characterized by means of dynamic contact angle and roughness measurements. Indeed, the occurrence of superhydrophobic behavior was observed. The scratch resistance of the hybrid coatings was tested to evaluate the adhesion of the coatings to the glass substrate. The proposed preparation method for scratch resistant, mechanically stable, superhydrophobic coatings is simple and can be applied on large areas of different kinds of substrates.
Pubblicazioni consigliate
I metadati presenti in IRIS UNIMORE sono rilasciati con licenza Creative Commons CC0 1.0 Universal, mentre i file delle pubblicazioni sono rilasciati con licenza Attribuzione 4.0 Internazionale (CC BY 4.0), salvo diversa indicazione.
In caso di violazione di copyright, contattare Supporto Iris
