@prefix prodottidellaricerca: . @prefix istituto: . @prefix prodotto: . istituto:CDS073 prodottidellaricerca:prodotto prodotto:ID290043 . @prefix pubblicazioni: . @prefix unitaDiPersonaleInterno: . unitaDiPersonaleInterno:MATRICOLA4877 pubblicazioni:autoreCNRDi prodotto:ID290043 . unitaDiPersonaleInterno:MATRICOLA10409 pubblicazioni:autoreCNRDi prodotto:ID290043 . unitaDiPersonaleInterno:MATRICOLA10405 pubblicazioni:autoreCNRDi prodotto:ID290043 . @prefix modulo: . modulo:ID8168 prodottidellaricerca:prodotto prodotto:ID290043 . unitaDiPersonaleInterno:MATRICOLA12883 pubblicazioni:autoreCNRDi prodotto:ID290043 . @prefix rdf: . prodotto:ID290043 rdf:type prodotto:TIPO1301 . @prefix retescientifica: . prodotto:ID290043 rdf:type retescientifica:ProdottoDellaRicerca . @prefix rdfs: . prodotto:ID290043 rdfs:label "Pigmented aqueous systems for digital decoration (Contributo in atti di convegno)"@en . @prefix xsd: . prodotto:ID290043 pubblicazioni:anno "2014-01-01T00:00:00+01:00"^^xsd:gYear . @prefix skos: . prodotto:ID290043 skos:altLabel "
G\u00FCng\u00F6r G.L., Kara A., Gardini D., Blosi M., Dondi M., Zanelli C. (2014)
Pigmented aqueous systems for digital decoration
in 13th World Congress on Ceramic Tile Quality, QUALICER 2014, Castell\u00F3n (Spain), 17-18 February 2014
"^^rdf:HTML ; pubblicazioni:autori "G\u00FCng\u00F6r G.L., Kara A., Gardini D., Blosi M., Dondi M., Zanelli C."^^xsd:string ; pubblicazioni:titoloVolume "Proceedings of the 13th World Congress on Ceramic Tile Quality, QUALICER 2014"^^xsd:string ; pubblicazioni:pagineTotali "10"^^xsd:string ; pubblicazioni:affiliazioni "(1) SAM, Ceramic Research Center, Eski?ehir, Turkey\n(2) Department of Materials Science and Engineering, Anadolu University,\nEski?ehir, Turkey\n(3) CNR-ISTEC, Institute of Science and Technology for Ceramics, Faenza, Italy"^^xsd:string ; pubblicazioni:titolo "Pigmented aqueous systems for digital decoration"^^xsd:string ; pubblicazioni:isbn "978-84-95931-25-2"^^xsd:string ; prodottidellaricerca:abstract "Ceramic pigments are important materials for digital decoration of ceramic tiles and are preferred as colouring agents in solvent-based inks. On the other hand, due to environmental problems associated with these inks, water-based systems are envisaged as a green alternative for ceramic tile decoration. Controlling the rheology of water-based systems is an important factor to achieve a better product performance; however, there is little knowledge about the effect of grinding and pigment type on the stability of sub-micrometric aqueous pigmented suspensions. Therefore, this study was aimed at defining the rheological behaviour and stability of three different pigments in water: i.e., zircon (ZrSiO4:V), rutile ((Cr,Sb)TiO2) and spinel ((Co,Mn)(Fe,Cr)2O4). The pigments were ground to submicron level in water using circulation type agitator mill (Netzsch Labstar LS1) by varying parameters (rotation speed, type and amount of dispersants and bead size). An attempt was made to understand the jettability behaviour with the help of physical and rheological properties, i.e. viscosity change at different shear rates, surface tension and density and the rheological properties were measured with a rotational rheometer. Stability of aqueous suspensions of the pigments was studied by dynamic light scattering method for the determination of zeta potential and isoelectric point (zeta potential as a function of pH) and sedimentation tests. Polycarboxylic acid-sodium salt and ammonium polymethacrylate were chosen as two different dispersants for the determination of effective stabilization mechanism. The interval of pH where zeta potential is out of the typical stability range (-30; 30 mV) and, correspondingly, the most stable conditions, according to the pH values, were determined. All three types of ground pigments showed high stability due to having zeta potential below -30 mV and the starting pH values were measured as 7.7, 7.2 and 10. When acid was added to the system, zeta potential value reached close to zero. When surface tension and density values were considered in terms of jettability, it was observed that the ground aqueous systems were in the optimum jettability range."@en ; prodottidellaricerca:prodottoDi modulo:ID8168 , istituto:CDS073 ; pubblicazioni:autoreCNR unitaDiPersonaleInterno:MATRICOLA10405 , unitaDiPersonaleInterno:MATRICOLA4877 , unitaDiPersonaleInterno:MATRICOLA12883 , unitaDiPersonaleInterno:MATRICOLA10409 .