Effect of various type of nanoparticles on mechanical and tribological properties of wear-resistant peek + ptfe-based composites

Sergey V. Panin, Duc A. Nguyen, Dmitry G. Buslovich, Vladislav O. Alexenko, Aleksander V. Pervikov, Lyudmila A. Kornienko, Filippo Berto

Research output: Contribution to journalArticlepeer-review

Abstract

The mechanical and tribological properties of polyetheretherketone (PEEK)-and PEEK + PTFE (polytetrafluoroethylene)-based composites loaded with and four types of nanoparticles (car-bonaceous, metallic, bimetal oxide, and ceramic) under metal-and ceramic-polymer tribological contact conditions were investigated. It was found that loading with the nanofillers in a small content (0.3 wt.%) enabled improvement of the elastic modulus of the PEEK-based composites by 10– 15%. In the metal–polymer tribological contact, wear resistance of all nanocomposites was increased by 1.5–2.3 times. In the ceramic-polymer tribological contact, loading PEEK with metal nanoparti-cles caused the intensification of oxidation processes, the microabrasive counterpart wear, and a multiple increase in the wear rate of the composites. The three component “PEEK/10PTFE/0.3 nan-ofillers” composites provided an increase in wear resistance, up to 22 times, for the metal–polymer tribological contact and up to 12 times for the ceramic-polymer one (with a slight decrease in the mechanical properties) compared to that of neat PEEK. In all cases, this was achieved by the polymer transfer film formation and adherence on the counterparts. The various effects of the four types of nanoparticles on wear resistance were determined by their ability to fix the PTFE-containing transfer film on the counterpart surfaces.

Original languageEnglish
Article number1113
Pages (from-to)1-23
Number of pages23
JournalMaterials
Volume14
Issue number5
DOIs
Publication statusPublished - 1 Mar 2021

Keywords

  • Nanoparticles
  • Polyetheretherketone (PEEK)
  • Solid lubricant fillers
  • Transfer film
  • Wear factor

ASJC Scopus subject areas

  • Materials Science(all)

Fingerprint Dive into the research topics of 'Effect of various type of nanoparticles on mechanical and tribological properties of wear-resistant peek + ptfe-based composites'. Together they form a unique fingerprint.

Cite this