COMPARISON OF EFFECTIVENESS OF CARBON NANO- AND MICROFIBERS FOR FORMATION OF PHYSICAL-MECHANICAL AND TRIBOLOTECHNICAL PARAMETERS OF POLYMER COMPOSITES BASED ON HIGH MOLECULAR WEIGHT MATRIX

The mechanical and tribo-technical parameters of composite materials of mixtures on the bases of super- molecular polyethylene (SMPE) at conditions of dry friction and abrasive wear were studied for comparative estimation of solid- grease properties of nano and micro fibers of carbon. It was shown that wear resistance of polymer compositions of SMPE+0.5 weight% the percent of C(nano) increases by a factor 6.6 and for SMPE+5 weight% the percent of C(micro) increases by a factor 2.5 at conditions of dry friction of slip. At conditions of abrasive wear the resistance of composites mentioned above increases by a factor about 2 for both types of fillers. The role of nano and micro fibers of carbon is discussed as solid grease in tribo- conjugated polymer compositions based on SMPE for application at various conditions of operation.