Journal of Engineering Sciences / Журнал інженерних наук
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Item Research of the structure and properties of antifriction composites with modified polytetrafluoroethylene matrix(Sumy State University, 2014) Говорун, Тетяна Павлівна; Говорун, Татьяна Павловна; Hovorun, Tetiana Pavlivna; Дядюра, Костянтин Олександрович; Дядюра, Константин Александрович; Diadiura, Kostiantyn Oleksandrovych; Berladir, K.V.; Vyshehorodtseva, M.E.; Ustimenko, M.S.Structures of the powdered polytetrafluoroethylene (PTFE) before and after intensive mechanical activation (mechanical alloying) are investigated by the set of physical research methods. Enhancement of physical and mechanical properties and structuring activity of polytetrafluoroethylene as matrix of composites by means of mechanical activation is shown. Operating modes of mechanical activation equipment are defined, in which the service properties of PTFE are maximized. The effect of mechanical activation technology on restructuring and change of morphology and supramolecular structure of PTFE is detected for the first time. Obtained results and examples of implementation of the developed tribotechnical composites are analyzed.