Can the DLVO theory predict foamability of flotation frothers as MIBC (methyl isobutyl carbinol)? The froth is a multi-bubble system, in which bubbles collide, thus either coalescing or rebounding. This scenario driven by hydrodynamic push force, pressing towards each other, electrostatic and van der Waals forces between bubbles, occurrence precipitation dissolved air bubbles. We studied 20 ppm...

UNLABELLED Recent efforts in our laboratory have explored the use of polyacrylate nanoparticles in aqueous media as stable emulsions for potential applications in treating drug-resistant bacterial infections. These emulsions are made by emulsion polymerization of acrylated antibiotic compounds in a mixture of butyl acrylate and styrene (7:3 wt/wt) using sodium dodecyl sulfate as a surfactant. P...

Behaviors of nonionic-anionic surfactant sodium fatty Alcohol polyoxyethylene Ether Carboxylate (AEC) at dodecane/water interface influenced by inorganic salts NaCl, CaCl2 and MgCl2 were investigated by interfacial tension methods and molecular dynamics simulation. Contrasted distributions of various salts at interface and in aqueous solutions and resulting lowering the interfacial tension have...

In this report, results from the project, proposed in the original research plan are presented. 10 surfactant systems effective as drag reducing agents (DRA’s) in efficient district cooling, including four commercial cationic surfactants, one commercial and three novel synthesized zwitterionic surfactants, one commercial nonionic surfactant and one zwitterionic(synthesized)/anionic surfactant m...