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1、石油學(xué)報(bào)(石油加工)2011年4月AC1、APETROLEISINICA(1’ETROLEUMPR()CESSINGSECTION)第27卷第2期文章編號(hào):1001—8719(20I1)02029106含酯基功能化離子液體潤(rùn)滑劑的摩擦學(xué)性質(zhì)朱立業(yè),陳立功,王博。,宋翊彬。,楊鑫(1_后勤工程學(xué)院軍事油料應(yīng)用與管理工程系,重慶40131t;2.中國(guó)科學(xué)院蘭卅l化學(xué)物理研究所固體潤(rùn)滑國(guó)家重點(diǎn)實(shí)驗(yàn)室甘肅蘭州730000;3.中國(guó)石油蘭州潤(rùn)滑油研究開(kāi)發(fā)中心,甘肅蘭州730060)摘要:合成了含酯基官能團(tuán)的功能化離子液體1~乙酸乙酯基一3~甲基咪唑四氟硼酸鹽(EEAMIM~B
2、F),對(duì)其物化性質(zhì)進(jìn)行了測(cè)定,并選擇了含有相同烷基的傳統(tǒng)離子液體1一丁基3甲基咪唑四氟硼酸鹽([BMIM]BF)進(jìn)行對(duì)比,在四球摩擦機(jī)上研究了這兩種離子液體的摩擦學(xué)性能,用SEM和XPS對(duì)磨斑表面的形貌和主要元素進(jìn)行了分析,并探討了兩種離子液體不同的潤(rùn)滑機(jī)理。結(jié)果表明,~EAMIM]BF所具有的較高黏度導(dǎo)致其在低載荷下的減摩性稍差,但由于其所含的酯基官能團(tuán)在摩擦表面形成化學(xué)吸附邊界潤(rùn)滑膜,故其抗磨性較EBMIM~BF好。關(guān)鍵詞:功能化離子液體;1一乙酸乙酯基3一甲基咪唑四氟硼酸鹽;摩擦學(xué)性能;潤(rùn)滑劑中圖分類號(hào):TH117.1文獻(xiàn)標(biāo)識(shí)碼:Adoi:10.3969/j.
3、issn.1001-8719.2011.02.023TribologicalBehaviourofanEster’GroupFunctionalizedIonicLiquidasaLubricantZHULiye,CHENLigong,WANGBo,SONGHongbin。,YANGXint1.Departmentt}MilitaryOilApplication8Man£~gementEngineering,Logisti~alEnKineeringUniversityofPLAChongqing4013l1·(Thina;2.StateNef,Laboratory
4、ojSolidLubrication,LanzhouInstituteorChemiealPhysR。ChineseA(ademyo/Sciences,Lanzhou730000,China;3.PetroChinaLanzhouLubricatingOilR&DInstitute,Lanzhou730060。China)Abstract:Anewkindofester—groupfunctionalizedionicliquid,1一ethoxycarbonylmethyl一3一methylimidazoliumterafluoroborate(rEAMIM]BF
5、),WaSsynthesized,anditsphysicoehemicalandtribologicalpropertieswerestudiedonfour—ballmachineandcomparedwithatraditionalionicliquid,1-butyl一3一methyimidazoliumterafluoroborate([-BMIM]BF4),whichhadthesamealkylasthatinmoleculeofthefunctionalizedone.Themorphologyandmainelementsofthewornscar
6、surfaceofsteelballwereanalyzedbySEMandXPS,respectively.ThedifferentfrictionmechanismsofthetWOionicliquidswerediscussed.ASaresult,rEAMIM]BFsl-lowedworsefrictionreducingabilityatrelativelylowloadsowingtoitshigherviscosity,butexhibitedbetterantiwearabilitythan~BMIM3BF4,becausetheestergrou
7、pcontainedinitsmoleculecouldformachemicaladsorptionboundaryfilmonthewornsurfaceduringfrictionprocess.Keywords:functiona】izedliquid:1ethoxycarbonylmethyl~3methylimidazoliumterafluoroborate;tribologicalbehavior;lubricant離子液體具有不易燃易爆、熔點(diǎn)低、揮發(fā)性低、綠色的、高性能的新型潤(rùn)滑劑。已有研究發(fā)現(xiàn),將抗氧化性好和熱穩(wěn)定性高的特點(diǎn),有望成為理想的、