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AEP—水溶性极压添加剂的研究.docx

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AEP—水溶性极压添加剂的研究 Title:AStudyonWater-solubleExtremePressureAdditives(AEPs) Abstract: Water-solubleextremepressureadditives(AEPs)playacrucialroleinenhancingthelubricatingpropertiesofwater-basedlubricants.ThispaperaimstoprovideacomprehensivereviewoftheresearchonAEPs,focusingontheirsynthesis,properties,performance,andpotentialapplications.ThestudysynthesizesvariousstudiesonAEPstoprovideinsightsintotheireffectiveness,mechanisms,andfuturedevelopmentprospects. Introduction: Water-basedlubricantsarewidelyusedduetotheireco-friendlynatureandsuperiorcoolingproperties.However,theyoftenexhibitlimitedlubricityandload-carryingcapabilities.Toaddressthischallenge,water-solubleextremepressureadditives(AEPs)havebeendeveloped,whichoffersuperiorlubricatingpropertiesevenunderhigh-pressureconditions.ThispaperaimstoexploretherecentadvancementsandunderstandtheunderlyingmechanismsofAEPs. SynthesisofAEPs: AEPsarechemicallysynthesizedcompounds,primarilyderivedfromsulfurorphosphorus-basedcompounds.Variousmethodsofsynthesishavebeenadopted,includingthiol-eneandthiol-yneclickchemistry,condensationreactions,andnucleophilicsubstitutionreactions.ThesesynthesisroutesenablethemodificationofAEPstoenhancetheirsolubility,reactivity,anddispersibility. PropertiesofAEPs: ThepropertiesofAEPs,suchassolubility,viscosity,thermalstability,andchemicalstability,significantlyimpacttheireffectivenessasextremepressureadditives.SolubilityinwaterisacriticalfactorasAEPsmustdissolveinthelubricanttoexerttheirlubricatingproperties.AEPswithhighthermalandchemicalstabilityensuretheirproperfunctioningandlongerservicelife. PerformanceofAEPs: AEPsenhancetheload-carryingcapabilitiesofwater-basedlubricantsbyformingaprotectiveboundaryfilmonmetalsurfaces.Thisfilmactsasalubricatinglayer,reducingfrictionandwearundersevereoperatingconditions.TheperformanceofAEPsisinfluencedbyfactorssuchasconcentration,temperature,pressure,andthepresenceofotheradditives.Experimentalstudieshaveshownsignificantimprovementsinlubricationperformance,including