A review of the tribological properties of PTFE composites filled with glass, graphite, carbon or bronze reinforcement

Abstract

Polytetrafluroethylene (PTFE) is currently finding increasing utility due to its unique properties like high chemical resistivity, low coefficient of friction and high temperature stability. However, PTFE exhibits poor wear resistance, especially abrasion. The wear resistance of PTFE can be significantly improved by addition of suitable reinforcement (filler) materials. Among the most common filler materials are glass fibers, graphite, carbon and bronze. In this paper, it is presented a review of tribological properties of composite materials with PTFE matrix and above mentioned filler materials.