Modeling the wetting of titanium dioxide and steel substrate in water-borne paint and varnish materials in the presence of surfactants

This paper reports the results of studying effect two additives such as polyether siloxane (PS) and sodium polyacrylate (SPA) on wetting various substrates in water-borne paints (WB paints). Titanium dioxide (TiO2), paraffin (PA), steel (ST), glass (GL) were used solid substrates. The edge angle (?0) ratio (dCos?/d?S) criterion for assessing wettability In aqueous solutions (without acrylic resin), both surfactants improve For PS, all studied, depending ? depression, can be arranged a row: ST>PA>GL>TiO2. SPA: PA>TiO2>GL>ST. introduction an film-forming agent composition enhances ability SPA (in comparison with solution surfactants). With increase concentration from 0 to 4 g/dm3 resin solutions, decreases by 6÷8° (while water only 3°). respect TiO2, activity does not depend content water. PS acrylic-containing compositions exhibits worse than SPA. improves quality coatings. optimal contents compositions, corrosion rate coatings is reduced distilled 45 %, 60 % NaCl %). At same time, gloss increases 50 while adhesion 2 points (according ISO 11845: 2020). fully correlated nature substrate pigment (titanium dioxide). Based probabilistic-deterministic planning, WB optimized, ensuring their maximum TiO2 ST. Equations calculating cos? polymer have been derived