1、合肥工業(yè)大學碩士學位論文聚合物復合改性無鉛三層復合材料摩擦學研究姓名：張武軍申請學位級別：碩士專業(yè)：機械制造及其自動化指導教師：焦明華201204StudyonthetribologicalpropertiesoftheLeadfreethreelayerCompositesmodifiedbyPolymersABSTRACTCurrently，thethree—layercompositeshavebeenwidelyusedinva

2、riousfieldsandtherequirementsofthepropertiesbecomemoreandmorecriticalItnotonlvneedsfineterminologicalpropertiesofthethree1ayercomposites，butalsoneedsleadlessorlead—freematerialsInthebackground，theissueentersintothestudyo

3、fthepolymermodifiedLead—freePTFEthree1ayercompositesThroughpre。screeningexperiments，F(xiàn)M12modifiedfillers，whichimprovethelipophilicpropertiesofthecomposites，aretheresearchsubjectsMoreover，therewillbeacomprehensivestudyofth

4、ecompositeeffectsontheothermodifiedfillersandsolidlubricantsIntheresearchwork，qualifiedfrictionandwearexperimentsamplesarefirstbepreparedbyusingtheproductiontechnologyofPTFEcompositeTheexperimentsimulatedactualconditions

5、withdryfrictionoilboundaryfrictionandfulloilconditionsThespecimenwearsurfacecharacteristicsareobservedbyopticalmicroscopyandscanningelectronmicroscopyAndcombinedwiththetribologicalexperimentalresults，wediscussfrictionand

6、wearmechanismsoftheformulationmaterialsTheusefulconclusionsareasfollows：1ThecomplexuseofFM12andPPTAcanmakethethree1ayercompositesofPTFEgetcomplementaryoftheperformanceComparewithseparatefillingtwokindsofpolymermaterials，

7、itisinfavorofreducingfrictionandimprovingwearresistance2Tothemodifiedthreelayercomposite，molybdenumdisulfidecangreatlyimprovethewearresistance，andreducefrictionperformanceintheoilbearingworkingconditionsThegraphitecannot

8、obviouslyimprovethefrictionandwearpropertyofFM12modifiedcompositeThenitwillmakethewearvolumeincreasesignificantly3TherareearthelementscanobviouslyimprovetheinterfacepropertiesamongthecomponentsofthecompositesHowever，toFM