| 초록 |
Surface hardness is one of main properties of coatings. Pencil hardness test, pendulum hardness test, and microhardness test, which is new method, used to determine surface hardness of UV-curable epoxy acrylate coating in this study. Coatings consist of oligomer, monomers, and a photoinitiator, with no additives. The oligomer and photoinitiator used in this study were a diacrylate ester of bisphenol A epoxy resin and a dimethylhydroxyacetophenone, respectively. Monomers were HPA, HDDA, and TMPTA. The objectives of this study are to measure a surface hardness of UV-curable epoxy acrylate coating and find relationship of them as a function of TMPTA contents. |
