通过对合成的纯的和增强的硬质聚氨酯泡沫塑料(RPU)进行的细观分析,探讨了泡孔的破坏形式和增强相的作用.泡沫体的细观行为表现为:泡壁的弯曲、压缩、拉伸到屈曲、碎裂和拉断、纤维的拔出等;短切玻璃纤维与玻璃微珠增强机理不一样,前者是对泡沫体增强,玻璃纤维的高强特性难以充分发挥,后者是对基体增强.
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