Abstract:
An essential factor affecting the effectiveness of protective and decorative properties of paint and varnish
compositions due to the use of surfactants with inhibitory activity in their formulations, as well as the ability
to form permanent (cohesive, adhesive), decorative, insulating films based on their selective adsorption,
seems to be a promising improvement of the coating performance characteristics. The mechanism of their
physico-chemical effects on the interface and the dispersed medium as a whole depends on the nature of the
surfactants and the contacting phases, as well as their quantitative ratio. The paper presents the results of experimental
studies of the regularities of the processes of titanium dioxide disaggregation in an aqueous dispersion
medium in the presence of three types of surfactants. Introduction of three versions of surfactants intensify
processes of disaggregation of particles of titanium in an aqueous dispersion medium. The maximum
dispersing effect with respect to titanium dioxide is set for sodium polyacrylate solution. The average diameter
of the solid-phase particles in comparison with the characteristics of the base composition decreased from
13 to 4 microns, when this modified additive was introduced at the level of 0.25 g/L.
