The use of high-resistant polymers is becoming more and more interesting from tribological, mechanical, manufacturing and economical point of view. Poly-ether-ether-ketone (PEEK) is a high-resistant ...polymer with high melting temperature, good mechanical and promising tribological properties. The increasing use of PEEK for different applications showed a need for PEEK material (and its composites) to withstand severe contact conditions, such as non-lubricated contacts. PEEKʼs relatively high coefficient of friction in dry contacts (~0.4-0.6) intensified a need for further improvement of its tribological properties, especially lowering coefficient of friction which can be achieved by incorporating self-lubricated particles such as Molybdenum disulphide (MoS2). The use of conventional manufacturing procedures, such as injection molding and extrusion, limits researchers and manufacturers to the material melting properties. By using nonconventional procedures, processing temperatures can be varied and their affect can be studied. In this study, coefficient of friction, wear rate and wear mechanisms of PEEK/MoS2 composites are presented in a relationship to MoS2 particles concentration (0-10 wt.) and processing temperature (300-350 °C). Tribological tests were performed by reciprocating sliding in dry conditions with steel pin as a countermaterial. Results show that processing temperature has a considerable influence on tribological and mechanical properties while MoS2 particle concentration has only minor effect on the tribological behaviour.
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