Aqueous foam stabilized by partially hydrophobic nanoparticles in the presence of surfactant

Although foam has been widely used in petroleum industry, its instability is still a problem during its applications. Here, partially hydrophobic modified SiO2 nanoparticles were used with sodium dodecyl sulfate (SDS) to increase the foam stability. Surface tension, interfacial dilational viscoelasticity, and ζ potential of SiO2/SDS aqueous dispersion had been determined and correlated with foam stability and plugging ability in porous media....