Influence of a mixed particle/surfactant emulsifier system on water-in-oil emulsion stability

Water-in-oil (W/O) emulsions consisting of water and paraffin oil were prepared and stabilized by using a dual emulsifier system including hydrophobic silica particles and non-ionic surfactant. The surfactant/particles synergistic interaction and more specifically the effect of surfactant concentration (from 0 to 1.8%, w/w) at fixed amount of particles (1.8%, w/w) on the emulsions properties were investigated. Interfacial tension, emulsion...