Search

The surface properties of faience—acidity and aluminosilicate modulus—are determined and their variation depending on the chemical composition on changing the content of mullite Al2Si2O5, quartz, and cristobalite (crystalline modification of quartz SiO2) is explained. In accordance with the structure of the surface, the presence of a negative surface charge was determined. It was established that silanol groups on the surface of Si–OH faience, which are weakly acidic, afford a physicochemical interaction with polymer film-forming materials, possessing basic properties. The sorption of urea-formaldehyde oligomers of various compositions on faience and subsequent film formation in the presence of polyvinyl alcohol are considered. [ABSTRACT FROM AUTHOR]

The features of the surface structure of different types of ceramic are determined and their comparative characteristics are presented. The decoration of faience with colored glazes is examined and the composition of lead-free pigmented faience glaze is described. [ABSTRACT FROM AUTHOR]

The effect of the presence of water-soluble low-molecular oligomers in paint on the possibility of single high-temperature firing and on the decorative properties of coatings taking into account the type of ceramic surface (porcelain or faience), pigment makeup, and corresponding mineral fillers was studied. Differences in the color and tone of the coatings and gloss of the glaze were found for surfaces with different aluminum-silicate modulus and temperature regimes. [ABSTRACT FROM AUTHOR]