Porous polymer self-lubricating composites are a new kind of functional materials with excellent properties

such as outstanding mechanical properties and admirable self-lubricating performance

and have received the widespread attention in the aviation and aerospace

petrochemical industry and mechanical engineering. Lubricating oils can be stored by the pore structures

and then squeezed out from the pores to the contact surface to produce the lubricating film continuously and steadily

which plays a role in decreasing the friction and wear. In this mini-review

the latest research progress in tribology of porous self-lubrication polyimide (PI)

polyetheretherketone (PEEK) and ultra-high molecular weight polyethylene (UHMWPE)

etc

was introduced

and the current problems were summarized and the prospective of materials was exhibited.