Please use this identifier to cite or link to this item:https://hdl.handle.net/20.500.12259/88771
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dc.contributor.authorPadgurskas, Juozas-
dc.contributor.authorRukuiža, Raimundas-
dc.contributor.authorKupčinskas, Artūras-
dc.contributor.authorKreivaitis, Raimondas-
dc.coverage.spatialGB-
dc.date.accessioned2019-05-18T01:05:00Z-
dc.date.available2019-05-18T01:05:00Z-
dc.date.issued2015-
dc.identifier.issn00368792-
dc.identifier.otherVDU02-000050256-
dc.identifier.urihttps://hdl.handle.net/20.500.12259/88771-
dc.description.abstractPurpose – The purpose of this paper is to conduct research on the possibility of improving the tribological and utilization properties of lard and rapeseed oil bio-based greases by mixing it with ethanol and selection of thickener and modification with special biological additives. Design/methodology/approach – Rapeseed oil- and lard-based greases with sodium and lithium soap thickeners were mixed with either water or ethanol and modified with a special biological anti-wear additive. Tribological properties of modified lubricants evaluated on a four-ball machine. Findings – Rapeseed oil- and lard-based greases suspended in ethanol and modified with bio-additive have the same wear resistance as the industrial non-biological lubrication grease and much higher wear resistance as bio-based reference grease. The tribological efficiency of the additives is higher in greases of rapeseed oil and less efficient in lard-based greases. Oxidation and wear tests show that investigated bio-based greases have comparatively stable tribological properties also after their aging. Modified greases have sufficient consistence according penetration measurements and high thermal resistance according drop-point temperature measurements. All produced experimental greases pass within the category of the easily degradable materials. Originality/value – The greases mixed with the ethanol make possible to form more homogeneous and stable grease mixture. Modified bio-based greases have significantly higher wear resistance as bio-based reference grease, their lubrication properties are stable also after the aging and are categorized as easily degradable materialsen
dc.description.sponsorshipVytauto Didžiojo universitetas-
dc.description.sponsorshipŽemės ūkio akademija-
dc.format.extentp. 557 - 563-
dc.language.isoen-
dc.relation.ispartofIndustrial Lubrication and Tribology. Bingley., 2015, Vol. 67, N 6-
dc.relation.isreferencedbyScience Citation Index Expanded (Web of Science)-
dc.relation.isreferencedbyEMERALD-
dc.subjectAdditivesen
dc.subjectWear resistanceen
dc.subjectBio-based greasesen
dc.subjectEthanol mixingen
dc.subjectLaren
dc.subjectRapeseed oilen
dc.subject.otherMechanikos inžinerija / Mechanical Engineering (T009)-
dc.titleLubrication properties of modified lard and rapeseed oil greases with sodium and lithium thickenersen
dc.typeStraipsnis Clarivate Analytics Web of Science ar/ir Scopus / Article in Clarivate Analytics Web of Science or / and Scopus (S1)-
dc.identifier.doihttps://doi.org/10.1108/ILT-12-2014-0140-
dcterms.bibliographicCitation19-
dc.date.updated2016-09-29T11:57Z-
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local.typeS-
item.grantfulltextopen-
item.fulltextWith Fulltext-
crisitem.author.deptŽemės ūkio akademija-
crisitem.author.deptŽemės ūkio akademija-
crisitem.author.deptJėgos ir transporto mašinų inžinerijos institutas-
crisitem.author.deptŽemės ūkio akademija-
Appears in Collections:Universiteto mokslo publikacijos / University Research Publications
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