High-solid coatings were prepared by blending of previosly synthesized acrylic resins and hexamethylene diisocyanate-trimer and curing it at room temperature. The characterization of the films of the prepared coatings was performed. The impact resistance, cross-hatch adhesion, 60˚specular gloss, and heat resistance of the films proved to be good, and the pencil hardness and drying time proved to be slightly poor. Especially, there was a remarkable improvement in the heat resistance. This improvement may stem from the regular arrangement of ethyl groups introduced into the acrylic resin. As a result of Rigid-body pendulum visco-elasticity measurement, dynamic Tg values of cured films increased with dynamic Tg values.

• 조혜진 | Jo, Hye-Jin
• 심일우 | Shim, Il-Woo
• 유혁재 | You, Hyuk-Jae
• 우종표 | Wu, Jong-Pyo
• 김명수 | Kim, Myung-Soo
• 함현식 | Hahm, Hyun-Sik
• 박홍수 | Park, Hong-Soo
• 백운필 | Baik, Woon-Phil