Abstract
In order to develop solid self-lubricating composites based on ultrahigh molecular weight polyethylene (UHMWPE) matrix, we studied mechanical and tribotechnical characteristics of the blends 'UHMWPE+Polytetrafluoroethylene' under dry friction, boundary lubrication and abrasive wear. It is shown that the wear rate of polymer compositions 'UHMWPE-PTFE' under dry sliding friction is decreased by 2 times in contrast with pure UHMWPE. At the same time mechanical characteristics do not change significantly. Under abrasive wear by fixed particles wear resistance of compositions differs a little from that of pure UHMWPE. The purmolecular structure, degree of crystallinity and topography of wear tracksurface of compositions 'UHMWPE-PTFE' were studied by scanning electron microscopy, differential scanning calorimetry and optical microscopy. The mechanismsof wear of polymer-polymer composites 'UHMWPE-PTFE' under dry sliding friction and abrasive wear are discussed.
Original language | English |
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Title of host publication | Proceedings of 2014 International Conference on Mechanical Engineering, Automation and Control Systems, MEACS 2014 |
Publisher | Institute of Electrical and Electronics Engineers Inc. |
ISBN (Print) | 9781479962211 |
DOIs | |
Publication status | Published - 15 Dec 2014 |
Event | 2014 International Conference on Mechanical Engineering, Automation and Control Systems, MEACS 2014 - Tomsk, Russian Federation Duration: 16 Oct 2014 → 18 Oct 2014 |
Other
Other | 2014 International Conference on Mechanical Engineering, Automation and Control Systems, MEACS 2014 |
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Country | Russian Federation |
City | Tomsk |
Period | 16.10.14 → 18.10.14 |
Keywords
- friction coefficient
- permolecular structure
- Polytetrafluorethylene
- Ultrahigh molecular weight polyethylene
- wear resistance
ASJC Scopus subject areas
- Mechanical Engineering
- Electrical and Electronic Engineering
- Control and Systems Engineering