Tribological behavior of spun Kevlar fabric composites filled with fluorinated compounds

The tribological behavior of the spun Kevlar fabric composites filled with polyfluo wax (PFW) and LaF3 were evaluated using a pin-on-disc friction and wear tester under variable applied load and rotating speed. The worn surface and transfer film of the composites were then examined with SEM. The results indicated that the oxidation of PFW after curing and viscous flow characteristic of PFW in friction process were beneficial to the formation of the compact, uniform and smooth transfer film, corresponding to the excellent wear resistance of the composite filled with 15 wt% PFW. The corresponding wear mechanisms were also discussed.