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本研究通过注塑成型的方法制备了聚醚醚酮基体(PEEK)、短碳纤维/聚醚醚酮(CF/PEEK)、钛酸钾晶须/聚醚醚酮(PTW/PEEK)、短碳纤维/钛酸钾晶须/聚醚醚酮(CF/PTW/PEEK)复合材料,考察了材料的干摩擦学性能,通过SEM对摩擦表面的形貌及元素分布进行分析。结果表明,CF/PEEK主要的磨损形式为磨粒磨损,可观察到CF的减薄和脱落;PTW/PEEK则表现出疲劳磨损和磨粒磨损的摩擦机制。由于纤维和晶须之间的协同作用,CF/PTW/PEEK混杂增强复合材料有比CF/PEEK和PTW/PEEK更加优异的耐磨性能。
In this study, PEEK, CF / PEEK, PTW / PEEK, short carbon fiber / polyetheretherketone (PEEK) The potassium titanate whisker / polyetheretherketone (CF / PTW / PEEK) composites were used to investigate the dry tribological properties of the materials. The morphology and elemental distribution of the tribological surfaces were analyzed by SEM. The results show that the main wear form of CF / PEEK is abrasive wear, and the thinning and falling of CF can be observed. PTW / PEEK shows the friction mechanism of fatigue wear and abrasive wear. The CF / PTW / PEEK hybrid reinforced composite has better abrasion resistance than CF / PEEK and PTW / PEEK due to the synergy between fiber and whisker.