Application of Glycidyl Methacrylate (GMA) in UV Curing Powder Coatings

Application of Glycidyl Methacrylate (GMA) in UV Curing Powder Coatings

UV curing powder coatings are a new technology that combines UV curing technology with traditional powder coating curing technology. It combines the advantages of UV curing and powder coatings and is widely used in the coating of medium density fiberboard (MDF) and metals.

UV curing powder coatings can first synthesize carboxyl polyesters, and then react glycidyl methacrylate (GMA) with terminal carboxyl groups to produce UV curing powder coatings with photosensitive groups. Xiong Wei et al. used dihydroxymethylcyclohexane and adipic acid to generate terminal carboxyl polyester resins through esterification, and Zhou Shibiao et al. used methyl methacrylate, ethyl acrylate and butyl acrylate free radical copolymerization to obtain carboxyl-containing prepolymers. These prepolymers then react with GMA to introduce photoactive groups.