The results showed the addition of PCU decreased the T(subscript g) of PC, increased the interfacial bonding force between the two phases, resulted in improving the compatibility of PC/TPU blend.

• 结果表明，相容剂PCU的加入，促使共混体系中PC的玻璃化温度进一步降低，增强了两相间的界面豁结作用，改善了PC/TPU之间的相容性；