研究聚氨酯／聚酯共混体系不同组分比的动态力学性能．并探讨不同种类、不同含量填料对体系阻尼性能的影响．结果表明，10％石墨填料对兼顾体系的阻尼性能和模量效果最佳。 The dynamic mechanical properties of polyurethane / polyester blends at different composition ratios were studied. The effects of different types and different contents of filler on the damping capacity of the system were also discussed. The results show that 10% graphite filler has the best damping capacity and modulus for both systems.