Modified, Al2O3 - treated titanium whites as pigments of acrylic paints
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Poznan University of Technology
W Lakma S.A.
Teofil Jesionowski   

Poznan University of Technology, Institute of Chemical Technology and Engineering Pl. M. Sklodowskiej-Curie 2, 60-965 Poznan, Poland
Publication date: 2002-01-01
Physicochem. Probl. Miner. Process. 2002;36(1):307–316
In the studies, aluminium-oxide treated titanium white (R-001 type) was used, produced by the Chemical Works Police S.A. Surface of titanium white was modified with silane coupling agents. For the purpose 3-methacryloxypropyltrimethoxysilane (A-174), vinyltrimethoxysilane (U-611) and N-2- aminoethyl-3-aminopropyltrimethoxysilane (U-15D) were used. The unmodified and the modified titanium whites were subjected to physicochemical analysis. Moreover, tests were conducted in order to define morphology, surface structure and particle dispersion, as affected by the type of applied modifier. The analysis involved modern investigative techniques, SEM and DLS. The modified and the unmodified titanium whites were applied as pigments in acrylic paints. The modified TiO2 were particularly effective in improvement of strength and utility parameters of acrylic paints.