Abstract:The composites of polybenzoate and PTFE(POB/PTFE) were prepared by molding sintering method through filling MoS2, polyimide(PI) and aramid fiber(AF) separately, and the tribological and mechanics behaviors were studied with a MRH-3 block-on ring frictional wear tester and WD-W-200 universal testing machine.The results show that the friction coefficient and wear mass loss of the composites are reduced for the synergistic lubrication of PI,AF and POB in PTFE,and the compression modulus and compression strength of POB/ PTFE composites are also improved.Compared with MoS2/POB/PTFE composites, PI/POB/PTFE and AF/POB/PTFE composites have excellent mechanical property, friction stability and anti-wear capacity.