In recent years, great attention was paid to the Pickering emulsion in the field of new chemical materials and catalytic materials due to its unique interfacial particle layer and stimuli-responsiveness. In this paper, the stabilization mechanism of the Pickering emulsion is reviewed. Three key factors are identified:the interfacial tension, the triple-phase contact angle, and the particle grain size. The influential factors of the Pickering emulsion stability are comprehensively discussed, including the wettability of particles, the particle concentration, the electrolyte in the aqueous phase, the aqueous pH, and the oil/water volume ratio, based on the mechanical barrier mechanism and the three-dimensional viscoelastic particle network mechanism.

Pickering emulsion  /  stability  /  stabilization mechanism