A comparative study of the tribological behaviour of a highly viscous Naphthenic oil and Polyisobutenes
2011 (English)In: NLGI Spokesman, ISSN 0027-6782, Vol. 74, no 6, 11-17 p.Article in journal (Refereed) Published
The rheological and tribological performances of two different polyisobutenes and a heavy viscous naphthenic oil (T 4000) were studied using a new tribometer. The results were compared with measurements carried out by a more established tribometer, a Mini Traction Machine. A general agreement between the two tribology techniques used, the Mini Traction Machine from PCS Instruments and the tribo-cell from Paar Physica, was obtained. All three high viscosity lubricants showed good lubrication properties at lower speeds for both Steel/PTFE and Steel/Steel contacts. The range of speeds where good lubrication was achieved increased with temperature as the viscosity of the lubricants decreased. The behavior of T 4000 was more or less similar regardless the running temperature, while in the case of polyisobutenes the dependency on the temperature was more obvious.
Place, publisher, year, edition, pages
2011. Vol. 74, no 6, 11-17 p.
IdentifiersURN: urn:nbn:se:kth:diva-151239ScopusID: 2-s2.0-79961211549OAI: oai:DiVA.org:kth-151239DiVA: diva2:747206
QC 201409162014-09-162014-09-152014-09-16Bibliographically approved