Preparation and Surface Properties of Fluorinated Epoxy Acrylic Cathodic Electrodeposition Coatings

Abstract

The fluorinated epoxy acrylic cathodic electrodeposition (CED) coatings were prepared by mixing blocked polyisocyanate and cationic resin. The cationic resin was prepared via copolymerizing hexafluorobutyl acrylate (HFBA), methyl methacrylate (MMA), butyl acrylate (BA) and glycidyl methacrylate (GMA) and opening loop and acidizing the prepared terpolymer. The particle size of resultant cathodic electrodeposition coatings water suspension was 28.62 nm. Zeta potential of cathodic electrodeposition coatings was 41.84 mV, which indicated the stability of cathodic electrodeposition coating water suspension is high. The water-resistance and chemical resistance of cathodic electrodeposition coatings are improved.