Preparation of epoxy-acrylate copolymer@nano-TiO2 Pickering emulsion and its antibacterial activity

Using nano-TiO 2 as stabilizer, a novel waterborne antibacterial Pickering emulsion containing epoxy-acrylate copolymer@nano-TiO 2 composite particles (PkE@NT) has been successfully prepared via emulsion polymerization. The core–shell composite nanoparticles were characterized by dynamic light scattering (DLS), scanning electron microscope (SEM) and transmission electron microscopy (TEM), whose components were also confirmed by FT-IR and TGA. The mechanism of PkE@NT was suggested by monitoring the particle size changes in time. The average particle size was approximately 180   nm. Furthermore, water absorption of PkE@NT film got to 142   wt%, which showed good water absorption. The basic properties and antibacterial property of PkE@NT emulsion for interior coatings were also investigated. It showed that the emulsion had excellent adhesive force and antibacterial activity.