Asahi Kasei's polycarbonatediol (PCD)
It can be seen that PCD polyurethanes are hard to decompose when compared to polyether urethanes and polyester urethanes.
Change in the molecular weight of a polyurethane film immersed in hot water at a temperature of 100°C
PCD polyurethanes show high strength retention even after storage at a high temperature.
Change in the property of a polyurethane film stored at 120°C
It can be seen that PCD polyurethanes have a smaller swelling rate due to organic solvent when compared to polyether urethanes and polyester urethanes and copolymerized type DURANOL™ has an excellent swelling rate in particular.
Change in the property of a polyurethane film immersed in oleic acid (23°C) for 1 week
Generally, although PCD polyurethane tends to lack flexibility, use of liquid type DURANOL™ allows improvement of flexibility.
Tensile test of polyurethane
