Determination of the influence of a filler on the properties of composite materials based on polytetrafluorothylene for tribosystems of mechanisms and machines

This paper reports a comprehensive laboratory study into the thermophysical, physical-mechanical characteristics, and tribological properties of designed composite materials based on polytetrafluoroethylene. In structures machines mechanisms, significant role belongs to conjugations made from polymeric polymer-composite materials. The reliability machines, in general, depends large extent movable connections. Composite nonmetallic origin have low cost, they are resistant most aggressive chemicals capable operating under conditions without lubrication. It was established that characteristics must be adapted working separately considered conjugations. mechanisms thermal destruction been established, both basic material carbon fiber it. found fiber, regardless its content (quantity) polytetrafluoroethylene, is mainly oriented perpendicular force application plane. with an increase 10 40 % by weight, heat capacity decreases 16‒39 compared main material. optimal modes for substantiated basis pv factor: dry friction mode – up 4 MPa∙m/s; at lubrication 36.4 MPa∙m/s. dependence has coefficient polytetrafluoroethylene containing 20 weight when lubricated oil water. results reported here make it possible synthesize accordance required conjugation.