| 초록 |
Three different types of silanol coating materials were prepared, which are consisted of ester and silyl groups. A:tertbutyl (4-triethoxysilyl) butanoate, B:propyl (4-triethoxysilyl) butanoate, and C:2,2,2-trifluoroethyl (3-triethoxysilyl) butanoate, A novel plastic hard coating materials were prepared by sol-gel process by using inorganic material(colloidal silica AS-40) and organic material silane (MPTMS- methacryloxypropyl trimethoxysilane) with the prepared silanol A,B,C respectively. Thereafter, radical initiator (hydroxyl-cyclohexyl phenyl ketone) was added to the synthesized coating solution to perform UV curing. The coating materials were identified by 1H NMR, RT-IR, thermogravimetric analysis (TGA) and Photo-DSC investigations. After coating performance on polycarbonate sheet with UV curing, the coated surface was assessed by atomic force microscope (AFM), pencil hardness and contact angle measurement. |
