광섬유 코팅을 위한 UV경화 폴리우레탄 아크릴레이트의 합성 및 물성에 대한 연구

Abstract

Recently, the importance of optical fiber cables was increased with the rapid development in information and communications industries. Cable coating technology is also attracted for the protection of optical cable. A coating material requires several physical properties such as high strength and thermol stability. Environmental aspects of solvent-based material have became to be important resulting to study decrease of organic solvents. UV curable resins are getting the spotlight because of their advantages such as rapid cure time, solvent-free and environmental friendly process. Thus, synthesis of noble UV curable polyurethane-acrylate(PUA) that has noble physical properties and gives low emissions was worthwhile because acrylate has double bonds and its polymer is used for various fields such as surface coating, adhesive and coating materials due to their high chemical resistance, high abrasion resistance, and excellent mechanical properties. In this study, isophorone diisocyanate and toluene diisocyanate were used as a isocyanate monomers and polytetramethylene ether glycol and 2-hydroxy propyl acrylate were applied as a diol materials. And dibutiltin dilaurate was used as a catalyst. Then, 2-hydroxycyclohexyl phenyl ketone as a UV initiator and benzophenone as a UV absorbent were used to cure polyurethane acrylate resin. Physical and chemical properties were analyzed by FT-IR, GPC, and TGA.