Effect of Solid Lubricant on Friction and Wear Properties of Carbon Fiber Reinforced Nylon 66 Composites

Carbon fiber,PTFE and MoS2 reinforced nylon 66 (polyamide 66) composite materials were prepared and their friction and wear behaviors were evaluated using an MM-2000 friction tester.The worn surface morphology and surface element analysis were studied by scanning electron microscopy (SEM) and X-ray photoelectron spectroscopy (XPS).The tribological properties of composites were effectively improved by adding 15% PTFE.But the friction coefficient and wear rate of MoS2 and carbon fiber hybrid reinforced composites were increased due to the tribochemical reaction between the surface of materials and formed MoO3.