The Investigation of the Effects of Various Low Temperature Processing Organic Materials on the Ceramic Wall Tile Surface Morphology
Journal Title: Scholars Bulletin - Year 2017, Vol 3, Issue 12
Abstract
Abstract:It would be required to impart hydrophobic and hence antimicrobial property to inherently hydrophilic ceramic wall tiles in order to reduce health risks. For this purpose an industrially applicable ceramic wall tile opaque glaze was modified by the addition of the various organic materials. The organic matter included in the industrial glazes most probably acted as agents leaving pores behind and changing the liquefaction temperature of the glaze on the pore borders, and forming protruding microscale surface structures by burning and gasifying out during gloss firing. The optimum temperature range for gloss firing of the modified industrial opaque wall tile glaze was determined as 960-980°C by thermal microscope measurements and TG analysis. The SEM images of the surfaces revealed microscaled surface morphologies which might be potentially instrumental in the hydrophobic surface formation due to the trapped air gaps between the tile surface and the sessile water drops in accord with Cassie-Baxter model. The surface topography obtained in this way by polyvinyl butyrate and modifications provided hydrophobic contact angles. Keywords:Wall tile, low melting organic solids, ceramic glaze, hydrophobicity, contact angle, Cassie-Baxter theory.
Authors and Affiliations
Selçuk Özcan
Keywords
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