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Publications scientifiques

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Synthèse, caractérisation et application aux huiles lubrifiantes d'additifs polymères phosphosoufrés améliorants de vi, antiusure et extrême pression phosphosulphurized antiwear and extreme-pressure vi polymer additives, synthesis, characterization and lubricant applications

...fonctionnels anti-usure et extrême pression (AU-EP), sous la forme d'esters dithiophosphoriques ; les performances mécaniques des produits ont été pré-évaluées au moyen d'une machine quatre billes....

... Polyalkylmetlhacrylates (PMA) and an ethylene/propylene copolymer (OCP), usable both as lubricant VI improver and antiwear extreme-pressure (AW-EP) additives, were prepared by introducing AW-EP functional moieties on PMA and OCP back-bones under the form of dialkyldithiophosphoric esters; mechanical performances of these polymers were pre-assessed by means of a four-ball machine

général - core.ac.uk - PDF: doaj.org

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A comparation of standardized methods for lubrication failure determination... All these methods are used the four ball machine because of its constructive simplicity and easy utilization, in spite of its obsolete and given little correlation to the lubricant behaviour in real applications...

général - core.ac.uk - PDF: www.om.ugal.ro

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The load-carrying properties of metal dialkyl dithiophosphates: the effect of chemical structure...(a.w.) properties of a range of metal dialkyl dithiophosphates have been examined using the four ball machine....

général - core.ac.uk - PDF: pcp.sagepub.com