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Tribological behaviour of UHMWPE composites lubricated by polyvinylpyrrolidone‐modified water
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Machine Elements.ORCID iD: 0000-0002-9346-7229
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Machine Elements.ORCID iD: 0000-0001-6085-7880
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Machine Elements.ORCID iD: 0000-0001-8676-8819
2022 (English)In: Lubrication Science, ISSN 0954-0075, E-ISSN 1557-6833, Vol. 34, no 1, p. 42-53Article in journal (Refereed) Published
Abstract [en]

Tribological characteristics of ultra-high molecular weight polyethylene (UHMWPE) composites with 10% short carbon fibres (SCF) lubricated in water with polyvinylpyrrolidone (PVP) as a modifier were investigated. The aqueous solutions with varying concentrations of PVP were prepared, and their viscosity-enhancing action, friction-reducing properties and anti-wear performances were studied under different loading conditions equivalent to 10 and 20 MPa of contact pressures at a constant sliding speed of 20 mm/s. The results showed that PVP is an excellent viscosity modifier for water. PVP-modified water exhibited excellent performance compared to distilled water, reducing the wear and friction coefficient of neat UHMWPE up to 25%. The anti-wear properties of UHMWPE-SCF composite were also improved with PVP modified water lubrication, yielding a maximum reduction of wear up to 45%. PVP seems to be a promising additive of modifying the lubricating properties of distilled water for water-based lubrication. 

Place, publisher, year, edition, pages
John Wiley & Sons, 2022. Vol. 34, no 1, p. 42-53
Keywords [en]
composites, lubrication, polyvinylpyrrolidone (PVP), UHMWPE, water
National Category
Tribology (Interacting Surfaces including Friction, Lubrication and Wear)
Research subject
Machine Elements
Identifiers
URN: urn:nbn:se:ltu:diva-87379DOI: 10.1002/ls.1570ISI: 000701227900001Scopus ID: 2-s2.0-85116064073OAI: oai:DiVA.org:ltu-87379DiVA, id: diva2:1600642
Note

Validerad;2022;Nivå 2;2022-03-01 (joosat)

Available from: 2021-10-05 Created: 2021-10-05 Last updated: 2023-09-06Bibliographically approved

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Dhakal, NayanShi, YijunEmami, Nazanin

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