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Information × Registration Number 0218U006776, 0112U003294 , R & D reports Title The study of consumer properties of irradiated politetraftoretenu popup.stage_title Head Sakhno Tamara Viktorovna, Registration Date 04-09-2018 Organization The Higher Educational Establishment of UKOOPSPILKA Poltava University of Economics and Trade popup.description2 The work is devoted to the study of spectral-luminescent and tribotechnical properties modified polytetrafluoroethylene and composites based on it. Methods of spectroscopy (absorption, fluorescence excitation fluorescence synchronous scan) found that the fluorescence color and surface modified PTFE responsible ?-irradiation different optical centers and the main factor that affects the formation centers fluorescence is residual oxygen concentration. Methods of high-resolution scanning electron microscopy revealed that radiation modified PTFE samples obtained at the melting point, and the introduction of nanotubes in composite PTFE leads to a complete reorganization of PTFE, the formation of new morphological forms - spherulites size of about 50 microns, consisting of radially oriented fibrils . Irradiation at the melting point leads to a substantial decrease in porosity, linear wear intensity, allowing a composite with a high level of physical and mechanical properties. It was established that the technological optimum pair coefficient of friction/wear intensity is achieved for composites based on PTFE of 2.5% at a dose modification CNT at 0.20 MGy. Keywords: politetraftoreten, y-irradiation, radiation modification, fluorescence, composite, carbon nanotubes, morphology, Tribotechnical properties, optical centers. Product Description popup.authors Кожушко Григорій Мефодійович Сахно Тамара Вікторівна Сахно Юрій Едуардович Семенов Анатолій Олексійович Сичкова Світлана Терентіївна popup.nrat_date 2020-04-02 Close