超高分子量聚乙烯微孔膜的亲水改性研究臭氧活化接枝反应及其表征

:1007-8924(2006)01-0007-04()3(,100084):O3(UHMWPE),,(MAA),(HEMA).ATR-FTIRXPSO3UHMWPE,.:;UHMWPE;;:TQ028.8:A(UHMWPE),,[1].,,,,[2].UHMWPE,,,,,UHMWPE[3]..,(PP)(PES)(LDPE)[4-7],,.UHMWPE,,,.,UHMWPE[8-12],N,N-.UHMWPE,UHMWPE.,,.O3UHMWPE,MAAHEMA,O3UHMWPE,O3.11.1;[(NH4)2Fe(SO4)26H2O],,.UHMWPE(SoluporÒ)DSMSolutech,50m,7.0g/m2,0.3m.1.2UHMWPEUHMWPE,,:2004-07-02;:2004-10-09:(H030630080220);(20040350021):(1969-),,,,,.3,E-mail:[e-mail]261Vol.26No.120062MEMBRANESCIENCEANDTECHNOLOGYFeb.2006,N2,(NH4)2Fe(SO4)26H2O,,6h,,.1.3NicoletMagna-IRspectroscopy550(Japan)(FT-IR)O3(ATR-FTIR)(ZnSeSmartMulti-BounceHatr,45),OMNIC().m0O3,,24h,,:=[(mg-m0)/m0]100%,m0,mg.Perkin-Elmer(USA)X(XPS)O3UHMWPE,210-8Pa,Al-Mg,45;OCA-20(Ger2many)(1.010-7),.22.1UHMWPEATR-FTIRUHMWPE,,O3.UHMWPEO3,ATR-FTIR1.1,UHMWPEO330min,,1710cm-1CO,,,O3,11001180cm-1COOO.UHMWPE,,,,[6].MAAHEMA,ATR-FTIR2.O3,UHMWPE,CO1O3UHMWPEATR-FTIRFig.1ATR-FTIRspectraofUHMWPEmicrofiltrationmembraneswithdifferentozonetreatmenttime(a)UHMWPE;(b)MAA;(c)HEMA2UHMWPEATR-FTIRFig.2ATR-FTIRspectraofgraftedUHMWPEmicrofiltrationmembranes3O3Fig.3Membranegraftingdegreewithozonetreatmenttime,MAAATR-FTIR2(b),CO1700cm-1;HEMA,2(c),CO1724cm-1.,ATR-FTIRCO.,,COO3,CH2719cm-1,COCH2.3,O3826,,,O3,.O3105min,,O3,,;3,,HEMAMAA.2.2UHMWPEXPSXPSO3UHMWPE,XPS4.4(a),284.7eVC1s,O3XPS,4(b),C1s,533.8O1s,,XPS,C1s,Gauss,(a)UHMWPE;(b)O3UHMWPE;(c)MAA;(d)HEMA4O3UHMWPEXPSFig.4TheXPSfiguresofvirginandmodifiedmembrane,1.1,UHMWPE,O3,,O1s/C1s0.216,CCCOCO,;MAAHEMA,,O1s/C1sMAA0.474HEMA0.518,C1s,OCO,COCO.213UHMWPEO3UHMWPE,5.5,O3,,O3,,.O31XPSO3UHMWPEC1sTable1TheelementC1sandcorrespondentpeakareaofvirginandmodifiedmembraneO1s/C1sC1s/eVC1sUHMWPE0.009284.7099.80CCO30.216284.7084.79CC286.169.17CO288.556.07COMAA0.474284.7974.16CC286.718.89CO288.7216.81OCOHEMA0.481284.7665.12CC286.167.10CO286.8114.67CO288.7013.11OCO5UHMWPEO3Fig.5Contactangleoftreatedmembranewithozonetreatmenttime,O3,,5(b),O3.UHMWPEMAAHEMA,6.UHMWPE,,,,.,.6,,,20.2%MAA19.6%HEMA,23.021.9,,;HEMAMAA,,,.1:()96UHMWPEFig.6Contactangleofgraftedmembranewithgrafteddegree3O3UHMWPE,,MAA,HEMA.ATR-FTIR,XPS,,O3.,MAA,HEMA20.2%19.6%,23.021.9,UHMWPE.[1]KellyMJ.Ultra-highmolecularweightpolyethylene[J].JMacromolSciPartC:PolymRev,2002,C42:355-371.[2]YenLG,LarryY.Microporousmembranesofultrahighmolecularweightpolyethylene[P].USPat:4778601,1988.[3],,.[J].,2002,31:9-12.[4]ShimJK,NAHS,LeeYM,etal.Surfacemodificationofpolypropylenemembranesby-rayinducedgraftcopolymerizationandtheirsolutepermeationcharacteristics[J].JMembrSci,2000,190:215-226.[5]WavhalDS,FisherER.Hydrophilicmodificationofpolyethersulfonemembranesbylowtemperatureplasma-inducedgraftpolymerization[J].JMembrSci,2002,209:255-269.[6]WangY,KimJ,ChooK,etal.Hydrophilicmodificationofpolypropylenemicrofiltrationmembranesbyozone-In2ducedgraftpolymerization[J].JMembrSci,2000,169:269-276.[7]GatenholmP,AshidaT,HoffmanAS.Hybridbiomateri2alspreparedbyozone-inducedpolymerization(I)Ozona2tionofmicroporouspolypropylene[J].JPolymSciPartA:PolymChem,1997,35:1461-1467.[8]YangJ,HuangP,YangM,etal.EffectofMMA-g-UHMWPEgraftedfiberonmechanicalpropertiesofacrylicbonecement[J].JBiomedMaterRes,1997,38:361-369.[9]YangJ,HuangP,YangM,etal.ThegraftingofmethylmethacrylateontoultrahighmolecularweightpolyethylenefiberbyplasmaandUVtreatment[J].JApplPolymSci,1997,65:365-371.[10]SakuraiK,KondoY,MiyazakiK,etal.Ultrahigh-molecular-weight-polyethylene-fibersurfacetreat2mentbyelectron-beam-irradiation-inducedgraftpolymerizatioanditseffectonadhesioninastyrene-bu2tadienerubbermatrix[J].JPolymSciPartB:PolymPhys,2004,42:2595-2603.[11]ShirdeA,SaloveyR.Irradiationofultrahighmoleculerweightpolyethylene[J].JPolymSci,PolymPhysEd,1996,34:1063-1077.[12]AydinliB,TincerT.Radiationgraftingofvariouswater-solublemonomersonultra-highmolecularweightpolyethylenepowder.PartII:Thermal,FTIRandmor2phologicalcharacterization[J].RadiaPhysandChem,2001,62:337-343.HydrophlicmodificationofUHMWPEmicrofiltrationmembrane()Ozone-inducedgraftpolymerizationandcharacterizationGUOHongxia,WANGPing,CHENCuixian,LIJiding(DepartmentofChemicalEngineering,TsinghuaUniversity,Beijing100084,China)Abstract:OzonetreatmenttechniquewasusedasameansofformingchemicallyactivesitesonUltra-high-molecule-weightpolyethylene(UHMWPE)microfiltrationmembranesurfaceinthiswork.Thenthegraftpolymerizationofmethylacrylateacid(MAA)andhydroxyethylmethacrylate(HEMA)wascontactedwiththeactivespecies.ThesurfacegraftpolymerizationoftheunmodifiedandmodifiedmembranewasconfirmedbyATR-FTIRandX-rayphotospectroscopy.Surfacehydrophilicityofthemembraneinvestigatedbymeasuringthecontactanglesshowedasignificantincreaseinhydrophilicity.Keywords:ozonetreatment;UHMWPEmicrofiltrationmembrane;grafted;hydrophilicity1026