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研究了聚苯酯 (Ekonol)的含量对Ekonol-PTFE -石墨自润滑复合材料的磨损性能的影响 ,用扫描电子显微镜观察了此复合材料磨损前和磨损后的表面形貌 ,进而对其磨损机理进行了探讨 结果表明 :当Ekonol含量较少时 ,结晶体仍以带状结构存在 ,磨损中易发生带状破坏导致其耐磨性仍较差 ,磨损机理为严重粘着磨损 ;当Ekonol含量适中时 ,其结晶体以连续网状结构存在 ,其可有效地阻止PTFE基体的带状破坏 ,从而可极大地提高此复合材料的耐磨性 ,磨损机理为疲劳磨损和轻微粘着磨损 ;当Ekonol含量较多时 ,其结晶体以分散状存在 ,磨损机理为晶体剥落 图 7,表 1 ,参 9
The effect of Ekonol content on the wear properties of Ekonol-PTFE-graphite self-lubricating composites was studied. The surface morphology of the composites before and after wear was observed by scanning electron microscopy. The wear mechanism The results show that when the content of Ekonol is small, the crystal structure still exists in ribbon structure, and the ribbon is easy to occur during wear. The abrasion resistance is still poor and wear mechanism is serious. When the content of Ekonol is moderate, The crystals exist in a continuous network structure, which can effectively prevent the strip of PTFE matrix damage, which can greatly improve the wear resistance of the composite material, the wear mechanism of fatigue wear and slight wear and tear; when the Ekonol content is high, The crystals exist in a dispersed form, the wear mechanism is exfoliation of crystal 7, Table 1, reference 9