WeB-1-3 NANOTRIBOLOGY ON RESIN/METAL INTERFACE : A COMPUTATIONAL CHEMISTRY APPROACH

Abstract

A tribochemical reaction mechanism between aluminum and polytetrafluoroethylene (PTFE) resin, which is widely used as bearing material, was investigated by a computational chemistry method. A catalytic effect of aluminum surface and its influence on wear behavior of PTFE were especially focused. The result suggested that the tribo-catalytically-formed aluminum fluoride causes wear of PTFE because of less transfer film formation which is necessary phenomena for lowering friction and wear. It was inferred that preventing the catalytic effect of metallic surface is one of the ways to suppress the PTFE wear.