通过熔融共混法制备了纳米Al2O3/玻璃纤维(GF)/聚对苯二甲酸丁二醇酯(PBT)复合材料,利用差示扫描量热仪(DSC)对其非等温结晶过程、熔融行为及结晶度进行了研究.结果发现,纳米Al2O3粒子的异相成核作用有利于复合材料结晶速率的增加,使得非等温结晶温度提高,双熔融峰现象中的低温熔融峰的熔融温度也有所提高.同时,在PBT基体中,纳米Al2O3粒子在一定程度上可以改变玻璃纤维对复合材料结晶行为的影响而使结晶度发生改变.
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