Andrzej Krysztafkiewicz, Janina Grodzka and Teofil Jesionowsk
An attempt was made to precipitate highly dispersed carbonate‐silicate fillers from solutions of metasilicate sodium and calcium hydroxide using gaseous carbon dioxide. Optimum…
Abstract
An attempt was made to precipitate highly dispersed carbonate‐silicate fillers from solutions of metasilicate sodium and calcium hydroxide using gaseous carbon dioxide. Optimum conditions were defined for precipitating these powders. Carbonate‐silicate fillers were subjected to surface modification employing two techniques: the wet one, applied in the course of precipitation, and the dry one. For the modification, silane coupling agents were used. The carbonate‐silicate fillers were subjected to physicochemical analysis. Moreover, particle size distribution was determined using the DLS technique and their surface morphology was examined using SEM. The modified carbonate‐silicate filler was applied as a substitute of titanium white and a filler in acrylic paints.i