A glance into the boundary lubrication mechanism of PVA hydrogel after the reduction of interstitial fluid pressurization

verfasst von

Daniel Němeček, David Nečas, Hironori Shinmori, Seido Yarimitsu, Max Marian, Martin Vrbka, Yoshinori Sawae, Ivan Křupka, Martin Hartl

Abstract

The present study introduces a tribological comparison of five polyvinyl alcohol (PVA) hydrogel specimens with different physiological properties, possible candidating materials for cartilage replacement. The superior lubrication of articular cartilage is believed to lie in solid-to-solid molecular interactions. Therefore, the focus was paid to the investigation of boundary lubrication with regard to interstitial fluid flow reduction. The experiments were carried out in a ball-on-plate (glass-on-hydrogel) configuration. Based on the experiments, we proposed a boundary lubrication mechanism, selected a hydrogel with the least surface damage and highlighted the desired properties that should be considered when developing the artificial cartilage.

Organisationseinheit(en)

Institut für Maschinenkonstruktion und Tribologie

Externe Organisation(en)

Technische Universität Brünn (VRT)
Mendelova univerzita v Brně
Kyushu University
Pontificia Universidad Católica de Chile

Typ

Artikel

Journal

Friction

Band

13

ISSN

2223-7690

Publikationsdatum

12.2025

Publikationsstatus

Veröffentlicht

Peer-reviewed

Ja

ASJC Scopus Sachgebiete

Maschinenbau, Oberflächen, Beschichtungen und Folien

Elektronische Version(en)

https://doi.org/10.26599/FRICT.2025.9441106 (Zugang: Offen)
https://doi.org/10.5281/zenodo.12863940 (Zugang: Offen)
https://doi.org/10.26599/FRICT.2025.9441106 (Zugang: Offen)