Tribological Property of Polyimide Porous Materials

The friction performance of the polyimide (PI) porous composite materials made by moulding method with MoS2 or polytetrafluoroethylene (PTFE) appended are disserted. The result shows that all the PI-based porous composites have the performance of transfer lubrication in the friction process, and the transfer film is built between the counter friction bodies; with the increasing of the MoS2 amount from 0 to 20%, the friction coefficient trends toward decrease, and the transfer lubricate phenomenon become more obvious; when adding PTFE as synergist to the porous PI MoS2 composite material, the synergistic effect happens, which can improve the friction performance of the material effectively.