Study on the Tribological Properties of CaF2 Filled PTFE Three-layer Composite Materials

The friction and wear behavior of CaF2 filled PTFE three-layer composite was tested under the End Friction Testing Machine,and the influence of CaF2 content was studied.The results showed that the coefficient of friction of the composite increased with the increase of CaF2 content,meanwhile the wear of the composite decreased obviously when filled with few CaF2,which means that CaF2 can improve the tribological properties of the composites.