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dc.contributor.authorGallego Calvo, Rocío 
dc.contributor.authorCidade, T.
dc.contributor.authorSánchez Martínez, Rubén 
dc.contributor.authorValencia Barragán, Concepción 
dc.contributor.authorFranco Gómez, José María
dc.identifier.citationGallego Calvo, R., Cidade, T., Sánchez Martínez, R., Valencia Barragán, C., Franco Gómez, J.: "Tribological behaviour of novel chemically modified biopolymer-thickened lubricating greases investigated in a steel–steel rotating ball-on-three plates tribology cell". Tribology International. Vol. 94, págs. 652–660, (2016). DOI: 10.1016/j.triboint.2015.10.028en_US
dc.identifier.issn1879-2464 (electrónico)
dc.description.abstractIn this work, model renewable and biodegradable lubricating greases based on castor oil and chemically modified biopolymers (methylcellulose, chitin and cellulosic pulp) were tribologically characterized in a steel–steel ball-on-plates tribological cell coupled to a controlled-stress rheometer, and the results were compared to those provided by conventional lithium and calcium soap-based greases. Viscous flow, sliding velocity sweep and transient friction tests were carried out and resulting wear scars in the steel plates were evaluated by means of scanning electron microscopy (SEM). Different frictional responses were found depending on the thickener, especially at high temperature. Excepting for most severe conditions, wear is negligible when using chemically modified chitin and methylcellulose-based greases as lubricants.en_US
dc.description.sponsorshipThis work is part of two research projects (CTQ2014-56038-C3-1R and TEP-1499) sponsored by MINECO-FEDER and Junta de Andalucia programmes, respectively. One of the authors (Rocio Gallego) has received a Ph.D. Research Grant (BES-2011-045029) from DIGICyT (MINECO). The authors gratefully acknowledge the financial support. Maria Teresa Cidade acknowledges the support of the Portuguese Foundation for Science and Technology through Project PEst-C/CTM/LA0025/2013 and The Portuguese Society of Rheology (SPR) for her stay in University of Huelva.en_US
dc.rightsAtribución-NoComercial-SinDerivadas 3.0 España*
dc.subject.otherBiopolymer-based lubricating greasesen_US
dc.titleTribological behaviour of novel chemically modified biopolymer-thickened lubricating greases investigated in a steel–steel rotating ball-on-three plates tribology cellen_US
dc.relation.projectIDinfo:eu-repo/grantAgreement/MINECO-FEDER [(CTQ2014-56038-C3-1R]en_US
dc.relation.projectIDinfo:eu-repo/grantAgreement/Junta de Andalucia [TEP-1499]
dc.relation.projectIDinfo:eu-repo/grantAgreement/DIGICyT (MINECO) [BES-2011-045029]

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Atribución-NoComercial-SinDerivadas 3.0 España
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