Abstract:It has been an effective method to improve the metal protective performance of UV‐curable waterborne coatings by increasing the crosslinking degree. Hence, a series of UV‐curable waterborne urethane modified acrylic (UV‐WUA) coatings with different vinyl content were prepared. Firstly, a functional prepolymer containing carboxyl and hydroxyl groups was synthesized by free radical copolymerization (FRCP) using acrylic acid (AA), 2‐hydroxyethyl acrylate (HEA), methyl methacrylate (MMA) and butyl acrylate (BA). N… Show more
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