ABSTRACT
Surface coatings are complex, highly concentrated dispersions, often consisting of both inorganic particles, for example, titanium dioxide, calcium carbonate and clays, and organic polymer latexes, such as vinyl acetate, acrylics and styrene–butadiene. Polymers, surfactants and other co-solutes are added to control the overall stability and rheology. The rheological properties of coating formulations are controlled by the presence of polymer in the water phase. In order to improve coating formulations, it is necessary to have a clear understanding of the interactions that occur between the various components present. The chapter provides a general insight into the interactions that can occur between various types of polymers and surfactants. Such interactions can have important implications in a very large number of product areas in addition to coatings. Both dilute and concentrated polymer–surfactant solutions are considered, and also polymer–surfactant systems in the presence of particulates.
