Registration Number
0218U006776,
0112U003294
, R & D reports
Title
The study of consumer properties of irradiated politetraftoretenu
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Head
Sakhno Tamara Viktorovna,
Registration Date
04-09-2018
Organization
The Higher Educational Establishment of UKOOPSPILKA Poltava University of Economics and Trade
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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
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Кожушко Григорій Мефодійович
Сахно Тамара Вікторівна
Сахно Юрій Едуардович
Семенов Анатолій Олексійович
Сичкова Світлана Терентіївна
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2020-04-02
