| 초록 |
With the present focus on environmental issues, ultraviolet (UV) curing coating has become used indoor and outdoor. There are some temperature differences in indoor and outdoor condition. In this work, we measure surface properties of UV-curable epoxy acrylate coatings at temperature condition of -20~90℃. UV-curable epoxy coatings consist of oligomer, monomers, and photoinitiator, with no additives. The oligomer and photoinitiator used in this study were diacrylate ester of bisphenol A epoxy resin and dimethylhydroxyacetophenone, respectively. Monomers were 2-hydroxypropylacrylate (HPA), 1,6-hexanediol diacrylate (HDDA), and trimethylol propane triacrylate (TMPTA). We focus on hardness and viscoelastic properties of surface properties using by microhardness. |
