采用不同特性玻璃质刚性填料(玻璃纤维、玻璃纤维粉、5 μm和20 μm玻璃微珠)填充改性热塑性聚酰亚胺(TPI),利用MPX-2000摩擦试验机测定了干摩擦、水润滑和油润滑条件下材料的摩擦磨损性能,考察了不同形态、尺度填料的影响,用扫描电子显微镜(SEM)观察磨损表面形貌,分析材料磨损机理.结果表明,大尺寸填料的单位个体与基体的界面面积和结合强度大于小尺寸填料,其磨损率比小尺度填料的材料低.在水和油起到良好冷却作用后,球形颗粒易出现应力集中,疲劳裂纹向四周扩展、交汇,产生疲劳磨损,其程度随颗粒尺寸增大而提高,表现为20 μm玻璃微珠填充材料磨损率最大.
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