Formation of Particle Coated Fusiform Droplets via Lowering Interface Tension with Polyaluminum Sulfate

摘要: It was found that the interface tension between water and alkenyl succinic anhydride (ASA) significantly reduced by polyaluminum sulfate (PAS), increased considerably though TiO2 nanoparticle. PAS with basicity of 0.75 (PAS-0.75) to a larger extent than 0.3 (PAS-0.3). By reducing PAS-0.75, ASA-in-water emulsion bearing fusiform geometries constructed. The stabilized PAS-0.3 nanoparticle bore spherical shapes exception when mass fraction low, in which case fused nonspherical drops were formed. Forming crucially depends on ASA-water tension, where critical identified be 0.6–0.7 mN/m. transformed into higher 0.7 mN/m. Both lowering mechanism formation proposed.