SELF-LUBRICATING POLYMER COMPOSITES AND POLYMER TRANSFER FILM LUBRICATION FOR SPACE APPLICATIONS

The use of self-lubricating polymers and polymer composites in space is somewhat limited at present. In general, they are only used when other methods are inadequate. There is potential, however, for these materials to make a significant impact on future space missions, if properly utilized. This paper surveys some of the different polymers and fillers used to make self-lubricating composites. It delves into the mechanisms of composite lubrication and wear, the theory behind transfer film lubricating mechanisms, and some factors which affect polymer composite wear and transfer. In addition, some of the current space tribology application areas for self-lubricating polymer composites and polymer transfer are mentioned. © 1990.