Article
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Tribology of Polymer Blends PBT + PTFE
Version 1
: Received: 10 January 2021 / Approved: 11 January 2021 / Online: 11 January 2021 (17:56:15 CET)
A peer-reviewed article of this Preprint also exists.
Georgescu, C.; Deleanu, L.; Chiper Titire, L.; Ceoromila, A.C. Tribology of Polymer Blends PBT + PTFE. Materials 2021, 14, 997. Georgescu, C.; Deleanu, L.; Chiper Titire, L.; Ceoromila, A.C. Tribology of Polymer Blends PBT + PTFE. Materials 2021, 14, 997.
Abstract
This paper presents results on tribological characteristics for polymer blends made of polybutylene terephthalate (PBT) and polytetrafluoroethylene (PTFE). This blend is relatively new in research as PBT has restricted processability because of its processing temperature near the degradation one. Tests were done block-on-ring tribotester, in dry regime, the variables being the PTFE concentration (0%, 5%, 10% and 15%wt) and the sliding regime parameters (load: 1 N, 2.5 N and 5 N, the sliding speed: 0.25 m/s, 0.5 m/s and 0.75 m/s, and the sliding distance: 2500 m, 5000 m and 7500 m). Results are encouraging as PBT as neat polymer has very good tribological characteristics in terms of friction coefficient and wear rate. SEM investigation reveals a quite uniform dispersion of PTFE drops in the PBT matrix.
Keywords
Polybutylene terephthalate (PBT); polytetrafluoroethylene (PTFE); blend PBT + PTFE; block-on-ring test; friction coefficient; wear rate
Subject
Engineering, Mechanical Engineering
Copyright: This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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