| 초록 |
UV-curable isophorone diisocyanate (IPDI) based urethane acrylate prepolymers were prepared from IPDI, poly(tetramethylene adipate glycol) (PTAd), hexane diol (HD), and 2-hydroxyethyl acrylate (HEA) with dibutyl tin dilaurate as a catalyst. UV-curable coating materials were formulated from the prepolymer, three different diuents [Butyl acrylate (BA), Isobonyl acrylate (IBOA), Methylmethacrylate (MMA)], 1-hydroxy cyclohexyl phenyl keton (Irgacure 184) as a photoinitiator and benzoyl peroxide (BPO) as a thermal initiator. This study focused on the effect of diluent contents (30, 40, 50 wt%) on the surface/thermal/mechanical properties of coating materials to find the optimal diluent content. This work was supported by the Basic Science Research Program through the NRF funded by the Ministry of Education, Science and Technology (NRF-2015R1D1A1A01058464). |
