Influence of Preadsorbed Polyelectrolytes on Hydrophobic Properties of Synthetic Aluminosilicates

The influence of preadsorbed polyelectrolyte layers on the hydrophilic-hydrophobic properties of synthetic aluminosilicates of a given composition was studied by determining the heat of wetting and considering the respective thermographic data. It was shown that the interactions of polyelectrolytes follow the mechanisms of physical adsorption with the negatively charged sites of the aluminosilicate surface and the mechanism of activated chemisorption with the positively charged sites. It was concluded that cluster mineral-organic structures formed on the modified gels significantly alter physical and chemical properties of their surface, its wettability, and structural-sorption characteristics.