| 초록 |
Polyurethanes (PU) are essentially copolymers having a microphase separation structure composed of hard and soft segments. Microphase separation leads to excellent mechanical properties at room temperature. So, Polyurethanes are used in coatings, elastomers, foams and adhesives, insulation material. Unfortunately, general polyurethane has shortcomings of insufficient strength at high temperature. In this study, we synthesized Polyhedral Oligomeric silsesquioxane (POSS)/PU organic-inorganic hybrid materials to enhance mechanical properties at high temperature. The mechanical properties was investigate by Thermo Mechanical Analysis(TMA), Dynamic Mechanical Analysis(DMA), Hardness. |
