Siberian Federal University 
- Issue
- Journal of Siberian Federal University. Engineering & Technologies. 2023 16 (7)
- Authors
- Negrov, Dmitrij A.; Putintsev, Vitalij Yu.; Rogachev, Evgenij A.; Glotov, Aleksej I.
- Contact information
- Negrov, Dmitrij A.: Omsk State Technical University Omsk, Russian Federation; Putintsev, Vitalij Yu.: Omsk State Technical University Omsk, Russian Federation; Rogachev, Evgenij A.: Omsk State Technical University Omsk, Russian Federation; Glotov, Aleksej I.: Omsk State Technical University Omsk, Russian Federation;
- Keywords
- polymer composite material; polytetrafluoroethylene; detonation nanodiamonds; ultrasonic exposure; low-frequency modulation
- Abstract
Improving the process of cold pressing technology of polymer composite materials based on polytetrafluoroethylene, in order to obtain parts of friction units with predetermined operational properties, to ensure their durability and wear resistance, is an urgent task of modern materials science. The article considers the influence of technological modes of pressing on the tribotechnical characteristics and mechanical properties of polytetrofluoroethylene modified with detonation nanodiamonds of various concentrations. As a result of the research, it was found that the use of the technological mode of ultrasonic pressing with a frequency of 17 kHz and simultaneously superimposed low-frequency amplitude modulation of 100 Hz for pressing products made of polytetrafluoroethylene modified with detonation nanodiamonds of 0.5 % mass, allows to increase the tensile strength by 18 %, elongation by 14 %, modulus of elasticity by 15 % and reduce the intensity of mass wear by 22 % and the coefficient of friction by 17 %
- Pages
- 835–842
- EDN
- LOUNAM
- Paper at repository of SibFU
- https://elib.sfu-kras.ru/handle/2311/151842
This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License (CC BY-NC 4.0).