Tribo-investigation on PTFE lubricated PEEK in harsh operating conditions

摘要: A series of blends with Polytetrafluroethylene (PTFE) powder and Polyetheretherketone (PEEK) was developed by varying the PTFE contents in steps 5 wt.% from 0 to 20 wt.%. The composites were evaluated for their friction wear properties at room temperature as well high low amplitude oscillating (LAOW) mode against steel (100 Cr 6) ball polymer plate. same also abrasive study influence harsh operating conditions on performance. Incorporation benefited PEEK various ways such it increased tribo-utility latter increasing its limiting load value, removing stick-slip tendency, lowering coefficient specific rate significantly. With increase content, benefits performance regularly. This not case coefficient. Lowest μ recorded 15% contents. enhancement performance, however, cost strength which decreased substantially content. At 100 °C, rates all marginally. In mode, other hand, filled showed poorer resistance than neat PEEK. correlated observed that these closely followed predictions Ratner–Lancaster plot. SEM used examine micro-structural features worn surfaces.