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Teofil Jesionowski, Katarzyna Siwińska-Stefańska, Andrzej Krysztafkiewicz, Jadwiga Sójka-Ledakowicz, Joanna Koprowska and Joanna Lewartowska

The morphological and dispersive characterization of commercial titanium dioxides

The physicochemical and dispersive characterizations were conducted on the selected commercial titanium dioxides produced by, Z. Ch. POLICE, S. A. The dispersive properties were defined in detail by an analysis of particle size distribution and polydispersity index. Moreover, the microscope studies were executed to evaluate the surface morphology of the studied TiO2 forms. The profiles of titanium dioxides sedimentation in water were determined and the specific surface areas were defined by the BET method.

Open access

Teofil Jesionowski, Katarzyna Siwińska-Stefańska, Andrzej Krysztafkiewicz, Jadwiga Sójka-Ledakowicz, Joanna Koprowska and Beata Pęczkowska

Characterization of TiO2 surface following the modification with silane coupling agents

Studies were conducted on the modification of titanium white surface using selected silane coupling agents. The effect of the concentration of the organic coupling agents was examined (0.5; 1 or 3 weight parts per 100 weight parts of TYTANPOL R-003, TYTANPOL R-211 or TYTANPOL R-213 preparation of titanium white). The dispersive properties were determined by an estimation of the particle size distribution curves and of the polydispersity index. Moreover, microscopic observations were conducted permitting to evaluate the surface morphology of the modified TiO2 particles. The profiles of sedimentation in water were also determined for the titanium whites and the BET specific surface areas were determined. Selected samples of the modified and unmodified titanium whites were subjected to elemental analysis.