UHMWPE纳米SiO2弹性复合材料的粒子流冲蚀特性研究

2810JOURNALOFVIBRATIONANDSHOCKVol.28No.102009UHMWPE/SiO2:(50775071)(06JJ2021),(06A018)(2007-05):2008-10-21:2009-02-01,,,19621,1,1,1,1,2(1.,411201;2.,400050):UHMWPE/SiO2,,UHMWPE/SiO2:SiO210%,,30,;,SiO210%,n2.03;1.92kg/m3,;;SiO210%,UHMEPE30%,45#1/16UHMWPE/SiO2:;;:TB332:A,,,,,,,,(UHMWPE),[1-3],,,[4-8],,,UHMWPE[9-11]SiO2UHMWPE,UHMWPE/SiO230%,,,,,,,,UHMWPE/SiO2,1111:,,M2,;,,20nm40nm;KH550,;,1Fig.1Specimentoferosionwear:,:SiO25%10%15%20%25%UHMWPE,10min,8MPa,1905120min,30min,45MPa,,,1112,PH6.8,0.2mm0.45mm20,4(gm-2h-1)[9]JSM26360LV,,:,R,V1=R,V2,V,V1,V2V22Fig.2Sampleinstallationandsynthesizeofvelocity2211SiO23,SiO210%,UHMWPE/SiO2,30%;SiO210%,SiO2,SiO210%,SiO2,2124,UHMWPE/SiO2UHMWPE30,,SiO2(impactvelocity:30m/s,impactangle:30,sandcontent:1.37kg/m3)3SiO2Fig.3EffectsofSiO2contentonerosion(impactingvelocity:30m/s,sandcontent:1.37kg/m3)4Fig.4Effectsofimpactangleonerosion2.35,1.92kg/m3,,,UHMWPE/SiO2;1.92kg/m3,,,,,2.4,[12,13]:=KVn,,,V,K,n,,6,SiO2010%25%n2.252.035.03,SiO210%2.52.7,,0.45mm,32110:UHMWPE/SiO2(impactingvelocity:30m/s,impactangle:30)5Fig.5Effectsofsandcontentonerosion(impactingangle:30,sandcontent:1.37kg/m3)6Fig.6Effectsofimpactvelocityonerosion(impactingvelocity:30m/s,impactangle:30,sandcontent:1.37kg/m3)7Fig.7Effectsofparticlesizeonerosion0.2mm-0.3mm4.592,2.68,UHWMPE/SiO2UHWMPE45#0.058,0.68UHWMPE/SiO245#16,SiO2UHWMPE,30%(impactingvelocity:30m/s,impactangle:30,sandcontent:1.37kg/m3,SiO2content:10%)8Fig.8Comparisonoferosionofvariousmaterials2.79(a)(b)UHMWPEUHM2WPE/SiO2SEM,,;,SiO2,(impactingvelocity:30m/s,impactangle:30,sandcontent:1.37kg/m3,1000)9SEMFig.9SEMimagesofthewornsurfacesofUHMWPE/SiO2composite3UHMWPE/SiO2,,UHMWPE/SiO2,200610,100m,1%,3-4,UHMWPE/SiO2,34212009284(1)SiO2UHMWPE,UHMWPE(2)UHMWPE/SiO2,30,,(3),1.92kg/m3,,UHMWPE/SiO2;0.2mm,,[1]MarcusK,AllenC.Effectoffillersonthefrictionandwearbehaviorofultrahighmolecularweightpolyethyleneduringwater2lubricatedreciprocatingslidingwear[C].Wear,1993,162:1091-1102.[2]LiuGuangjian.ModifiedUHMWPEandItsFrictionalLoss,Plastic,2000,29(1):35-37.[3]GongGoufang,QiuJinxin,YangHuayong,StudyontheErosionWearCharacteristicsandMechaismsofUHMWPE/KaolinComposites,Tribolgy,2001,21(4):266-269.[4]ChenZhan,WangJiaxu,QingDatong,etal.StudyontheEffectofStuffingontheCharacteristicofUltraHighMolecu2larandWearWeightPolyethylene[J].LubricationEngineer2ing,2001,(4):34-35.[5]LeiYi,GuoJianliang,ZhangYanxiang.FrictionandWearBehaviorofNano2ZnOFilledUHMWPECompostes[J].Tri2bolgy,2006,26(3):234-237.[6]XueMaoquan,ZhuLinyun.StudyonBio2tribol2ogicalProp2ertiesofNanoA1203FilledUltrahighMolecularWeightPoly2ethylene(UHMWPE)[J].PlasticsSic&Technology,2005,167(3):22-28.[7],,,.[J].,2005,24(6):51-56.[8],.[J].,2005,20(1):50-52.[9]GongWei,LiZhichao.ResearchoftestMethodofErosionWearandErosionWearPropertiesofEpoxyResincoating[J].ThermosttingResin,2005,20(1):50-52.[10],,.[J].,2004(5):32-35.[11],,.[J].,2006,26(3):234-237.[12]FinnieI.Somereflectiononthepastandfutureoferosion[C].wear,1995,186-187:1-10.[13]FinnieI.Erosionofsurfacesbysolidparticles[C].Wear,1960,(3):87-103.(63)1002201,41100120140160180200220/U1.041.071.091.111.131.151.17/U1.811.891.952.012.032.052.091.661.681.781.791.801.871.891.801.871.931.982.012.062.073(1)U,1,1;12;(2),1;(3)1;(4)ANSYS,1;(3)1,4[1]JohnDHolmes.Windloadingofstructures[M].London:SponPress,2001.[2]DL/T5154-2002,[S].:,2002.[3],.ANSYS[J].,2007,36(11):42-43.[4].()[M].:,2008.[5].ANSYS[M].:,2007.[6]CloughRW,PenzienJ.Dynamicsofstructures[M].Comput2ers&Structures,Inc.2003.52110:UHMWPE/SiO2ErosionpropertiesofUHMWPE/nano2SiO2compositematerialsGUOYuan2jun1,XIAOHua2lin1,GAOYong2yi1,HUHui1,LIWen2bin1,HUANGWei2jiu2(1.HunanprovincialkeyLaboratoryforhealthmaintainingofmechanicalequipment,HunanUniversityofScienceandTechnology,Xiangtan411201,China;2.KeyLaboratoryofDieandMoudTechniques,ChongqingInstituteofEngineering,Chongqing400050,China)Abstract:Nano2compositesofUHMWPE/SiO2werepreparedbyfillingnano2scaleSiO2inUHMWPE(ultra2highmolecularweightpolyethylene).TheeffectsofSiO2contents,impactangle,sandconcentration,impactvelocityandpar2ticlesizeontheerosionpropertyofUHMWPE/SiO2werestudiedbyusingtherotatingdiskerosioninstrument.TheerosionpropertyofUHMWPE/SiO2wascomparedwiththatofthepureUHMWPEand45#steel.Withascanningelectronicmi2croscope(SEM),ThewornsurfaceofUHMWPEcompositewasexamedandthemechanismwasdiscussed.ItwasfoundthatwhenthecontentofSiO2reached10%,theerosionrateofcompositereachedtheminimum;theerosionofcompositeincreasedwiththeimpactangleatfirst,andthen,itdecreased;whentheimpactanglewas30,theerosionratereachedthemaximun;theerosionrateofcompositeincreasedwithincreaseinsandcontent,however,whenthesandcontentreachedabout1.92kg/m3,theincreasetendencybecameslow;therelationshipbetweentheimpactingspeedandtheero2sionratewasanindexfunction;whenthecontentofSiO2reached10%,theindexofcompositeswas2.03;Theerosionrateofcompositesincreasedwithincreaseintheparticlesize;whenthecontentofSiO2reached10%,comparedwithUH2MWPE,theerosionrateofcompositedecreasedby30%andreachedonesixteenthof45#steel.Itsimportantwearmecha2nismwasploughing2