Harmonized tribological testing of polymers in hydrogen

  • To investigate typical polymer compounds and a potential alternative to be used in hydrogen compressors, tribological tests have been performed with several tribometers in hydrogen atmosphere. The compounds used were a commercially available PEEK matrix with 10 wt-% PTFE, graphite, and short carbon fibers each (supplied by company Polytron), a PPS matrix with 10 wt-% PTFE and graphite (supplied by company MOCOM) and an experimental PA12 matrix with PTFE, chemically coupled with an oleyl alcohol, as additive (supplied by the polymer research institute IPF). For all compounds a steel counter disc (type 316L / 1.4404) with a lapped surface was used in a cylinder on disc setup. The focus of this work is to study the tribological performance of the polymers in hydrogen atmosphere. Additionally, tests were carried out with up to three different tribometers at two institutions. The challenge to compare and harmonize equipment, procedures, and methods is an important part of the study. ThisTo investigate typical polymer compounds and a potential alternative to be used in hydrogen compressors, tribological tests have been performed with several tribometers in hydrogen atmosphere. The compounds used were a commercially available PEEK matrix with 10 wt-% PTFE, graphite, and short carbon fibers each (supplied by company Polytron), a PPS matrix with 10 wt-% PTFE and graphite (supplied by company MOCOM) and an experimental PA12 matrix with PTFE, chemically coupled with an oleyl alcohol, as additive (supplied by the polymer research institute IPF). For all compounds a steel counter disc (type 316L / 1.4404) with a lapped surface was used in a cylinder on disc setup. The focus of this work is to study the tribological performance of the polymers in hydrogen atmosphere. Additionally, tests were carried out with up to three different tribometers at two institutions. The challenge to compare and harmonize equipment, procedures, and methods is an important part of the study. This naturally includes the determination of the wear volumes of the polymeric cylinders. Furthermore, selected results of the wear and the resulting change in the contact geometry were compared by FEM simulations and an analytical model.zeige mehrzeige weniger

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Metadaten
Autor*innen:Mirco KröllORCiD
Koautor*innen:Marin Herr, Geraldine TheilerORCiD, Dirk SpaltmannORCiD
Dokumenttyp:Vortrag
Veröffentlichungsform:Präsentation
Sprache:Englisch
Jahr der Erstveröffentlichung:2025
Organisationseinheit der BAM:9 Komponentensicherheit
9 Komponentensicherheit / 9.5 Tribologie und Verschleißschutz
DDC-Klassifikation:Technik, Medizin, angewandte Wissenschaften / Ingenieurwissenschaften / Angewandte Physik
Freie Schlagwörter:Coefficient of Friction; Comparability; Harmonisation; Hydrogen; Interlaboratory comparison; Oil-coupled compounds; Polymers; Standardisation; Tribology; Tribometer; Wear
Themenfelder/Aktivitätsfelder der BAM:Energie
Energie / Wasserstoff
Material
Material / Degradationsmechanismen
Veranstaltung:Colloquium H2Safety@BAM, Materials properties and compatibility
Veranstaltungsort:Online meeting
Beginndatum der Veranstaltung:14.05.2025
Verfügbarkeit des Dokuments:Datei im Netzwerk der BAM verfügbar ("Closed Access")
Datum der Freischaltung:15.05.2025
Referierte Publikation:Nein
Eingeladener Vortrag (wissenschaftliche Konferenzen):Nein
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