表面修飾納米粒子的制備及摩擦學(xué)性能的研究.pdf

1、河北師范大學(xué)碩士學(xué)位論文表面修飾納米粒子的制備及摩擦學(xué)性能的研究姓名：劉萍申請學(xué)位級別：碩士專業(yè)：無機化學(xué)指導(dǎo)教師：涂華民20070520表面修飾納米粒子的制魯與摩擦學(xué)性能的研究AbstractwearingresistanceextensivelyexistsintheactualproductionandoutlifeAllmachinerymotionisrelativemovementrelyingonits’sparespai

2、rsAbrasionhappenedwithrelativemovementandabrasionisthemaincatkqeofsurfacedamagesparesinvalid雒dmateriallossWearnotonlycousunlestheeneryandmaterialsanddecreasestheequipmentefficiencybutalsoacceleratestheequipmentsdiscardan

3、dcaus囂thepartsreplacementfrequentlyandbigeconomylossThereforeabrasioniscausingmoreandmoreextensiveacademicattentionofmanyfieldOneoftheimportantstepofdecreasingabrasionislubracationandtheoldlubricationoilsonlyreducethefri

4、ctionandwearfunctionofthemachinesandequipmentarcdevelopedinthedirectionofhighspeed，highloadandhiighprecisionTheproblemofhowtoimprovethetribologicalpropertiesofmaterialsandthelubficadonstateofmachinepartsforprolongingthei

5、rlifetimearebecomingmoreandmoreattractivetoimproveattractivetoalltribologistsTheadditionofvariousadditivesintolubricatingoilsisanimportantwaytoimprovetheirlubricationproperties，whereas，theapplicationofsurfacetreatmentson

6、materialsistheeffectivemethedforimprovingthefrictionandwearpropertiesofmachinepartsNanomaterialsshowbroodapplicationduetoitsunquephysicalandchemcialcharacteristiesinthefieldoftribologyandbecomepotentiallubricatingoiladdi

7、tivesDespitethepresentresearchstillintheinitialstagemanyproblemsrequiretobesolvedhoweverlotsofexperimentalresultsindicatethatnanomaterialspossessthecharacteristicsofreducingwearantiwearandextremepressureInthisthesis，steu

8、ricacidmodifiednanoparticlesofCuCe02，CuSnwerepreparedTransimissionelectronmicroscope(TME)，Xraypowderdiffractionspectroscopy(XRD)wereusedtocharacterizethemorphologiesandstrnctoresofthesesurfacemodifiednanoparticlesTheform

9、ationmechanismsandstructuremodelsofthesesurfacemodifiednanoparticleswereproposedandcanvassedThefactorsthataffectthepreparationofthesesurfacemodifiednanopurticleswereinvestigatedandanalyzedAllthesepreparednanoparficleswer

10、eusedasadditivesinlubricatingoilliquidparaffinandtheirtribologicalpropertiesV。ereevaluatedonafourballmachineThefollowingmainconclusionswerereached：1Thesesurfacecappednanoparticlesconsistofinorganicnmlocoresabsorbedonthes

11、urfaceofthenanocoresOwingtothehydrophobiepropertyofhydrocarbonchainintheorganicmodificationlayerthesesurfncemodifiednanoparticlcshaveagooddispersityinorganicsolventsandexhibitaratheruniformsizedistribution2Aslubricatingo

12、iladditives。allthethreesurfacecappadnanoparticlescanmarkedlypromoteitsfrictionreducingandantiwearabilityandexhibithigherloadcarryingcapacityatproperconcentrationKeyword：nanoparticles，lubricalionon，surfacecappedtribologic