Modified titanium white-characteristics and application
More details
Hide details
Poznan University of Technology
PPW 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: 2001-01-01
Physicochem. Probl. Miner. Process. 2001;35(1):195–205
In the studies, type R-211 was used, produced by Chemical Works, Police S.A. (Poland). Surface modification of titanium white was performed in order to alter its physicochemical character. In this aim, silane coupling agents were used, carrying methacryloxy, vinyl and amine groups. Basic characteristics of the titanium white included estimation of bulk density, water, dibuthyl phthalate and paraffin oil absorbing capacities. Moreover, studies were conducted to define morphology, surface structure and dispersion of TiO2, as affected by the type of applied modifier. The parameters were examined using scanning electron microscopy (SEM). Using dynamic light scattering (DLS) effects of the applied modifiers were tested on tendency to form particle agglomerates. Significant changes were observed in the tendency to form primary and secondary agglomerate structures, particularly upon modification with U-15D aminosilane. The fillers permitted to improve physicochemical and utility properties of the façade acrylic paints.