| 초록 |
Polyurethane resin was synthesized by using polytrimethylene ether glycol prepared from 1, 3-propanediol produced by fermentation from corn sugar as bio polyol and polycarbonate polyol. Physical properties were investigated using the synthesized polyurethane resin. The tensile strength of polyurethane resin decreased with increasing content of bio polyol as copolymer polyol, but it tended to increase elongation. As a result of thermal characteristics analysis, it was found that the glass transition temperature was increased as the content of polycarbonate polyol increased. |
