Surfactants (249)

Surfactants are additives designed to reduce the surface tension between two phases, such as a liquid and a solid or two immiscible liquids. In polymer processing, they function as wetting agents, dispersants, and emulsifiers, enhancing the uniformity and distribution of fillers, pigments, and other additives within the polymer matrix. These compounds are essential in the production of composites, coatings, and adhesives, as they ensure effective wetting and adhesion of the polymer to the substrate. Additionally, surfactants influence the rheological properties of polymers, impacting their flow behavior during processing. Commonly used surfactants in polymer additives include anionic, cationic, nonionic, and amphoteric types, each offering distinct properties and applications.