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EHL properties of polyalkylene glycols and their aqueous solutions
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Machine Elements.
State Key Laboratory of Tribology, Tsinghua University, Beijing.
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Machine Elements.ORCID iD: 0000-0002-4271-0380
State Key Laboratory of Tribology, Tsinghua University, Beijing.
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2012 (English)In: Tribology letters, ISSN 1023-8883, E-ISSN 1573-2711, Vol. 45, no 3, p. 379-385Article in journal (Refereed) Published
Abstract [en]

Polyalkylene glycols (PAGs) are a type of synthetic lubricants widely used as compressor lubricants, gear oils, hydraulic fluids, and metal working fluids. The PAGs with typical molecular structure can dissolve in water, which makes it a candidate for the base stock of water-based lubricants. Till now, most of the investigations on the water-based lubrication have focussed on the additives. In this work, the potential of PAGs aqueous solutions to replace water as base stocks has been investigated. Four types of PAGs with different molecular weight and their aqueous solutions with different concentrations were studied to reveal their elastohydrodynamic lubrication (EHL) behavior. It has been found that the PAGs solutions can form EHL film like traditional oils. The film-forming capability depends on the viscosity, the pressure-viscosity coefficient, and the molecular weight of PAGs. The results indicate that the PAGs aqueous solution can be employed as base stocks of water-based lubricant

Place, publisher, year, edition, pages
2012. Vol. 45, no 3, p. 379-385
National Category
Tribology (Interacting Surfaces including Friction, Lubrication and Wear)
Research subject
Machine Elements
Identifiers
URN: urn:nbn:se:ltu:diva-7170DOI: 10.1007/s11249-011-9883-6Local ID: 57e714cd-d011-432a-a11c-af128ea0abd1OAI: oai:DiVA.org:ltu-7170DiVA: diva2:980058
Note

Validerad; 2012; 20111213 (andbra)

Available from: 2016-09-29 Created: 2016-09-29 Last updated: 2018-01-12Bibliographically approved

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  • apa
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