超高分子量聚乙烯微孔膜的亲水改性研究改性UHMWPE微孔滤膜的性质及其过滤性能

:1007-8924(2006)02-0006-03()UHMWPE,,3,(,100084):UHMWPEHEMAMAA.,,BSA;,,,;BSA,,80%,.:UHMWPE;;BSA;:TQ028.8:A,[1,2].,[3].(UHMWPE),,,[4].UHMWPE,,.[5].UHMWPE,HEMAMAA,[6].,,UHMWPE.11.1(MAA)(HEMA);[(NH4)2Fe(SO4)26H2O],,;(BSA),.UHMWPE(SoluporÒ)DSMSolutech,50m,7.0g/m2,013m.1.2UHMWPEUHMWPE,(MAA)(HEMA),[6].1.31.3.1,.,,,W0,,,,,1h,W1,.:2004-07-02;:2004-11-22:(H030630080220)(20040350021):(1969-),,,,,[e-mail]262Vol.26No.220064MEMBRANESCIENCEANDTECHNOLOGYApr.2006©1994-2010ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.=W1-W0W0100%,W1,W0.1.3.220mL2000mg/LBSA,0.1mol/LpH7.0.10cm10cm10min,BSA,25,150r/min24h.UV-Vis278nm,BSA.1.3.3UHMWPE.0.8MPa1h,0.05MPa,20mL,3,,Jw0;,4000mg/LpH7.0BSA,0.05MPa,,BSAJp;,,.,,BSA.BSA,3,BSA,,BSA,Jp1.22.1,1.1,,,20.0%,85%,,.2.2BSA,UHMWPEBSA2.2,BSA,,,25.0%,BSA15%.,1Fig.1Moistureadsorptionofvirginandmodifiedmembraneswithgrafteddegree2BSAFig.2BSAadsorptionofvirginandmodifiedmembraneswithgrafteddegreeBSA,,,,.3Fig.3Deionizedwaterfluxofvirginandmodifiedmembraneswithgrafteddegree2.3,Jw03.3,2:7©1994-2010ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.[1]ChanCM.Polymersurfacemodificationandcharacteriza2tion[M].Hansr(Carl)Munich,1994.[2]WavhalDS,FisherER.Membranesurfacemodificationbyplasma-inducedpolymerizationofacryamideforim2provedsurfacepropertiesandreducedproteinfouling[J].Langmuir,2003,19:79-85.[3]MichaelsAS.Membranes,membraneprocesses,andtheirapplications-needs,unsolvedproblems,andchal2lengesofthe1990s[J].Desalination,1990,77:5.[4]Lopatin;George;Yen;LarryY.Microporousmembranesofultrahighmolecularweightpolyethylene[P].USPat:4778601,1988.[5]PennLS,WangH.Chemicalmodificationofpolymersurfaces:areview[J].PolymforAdvTechnol,1994,5,809-817.[6].[D]:[].:,2002.6,29-48.(17)826©1994-2010ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.[1],,.[M].:,2001.14-18.[2].[M].:,2003.148-440.[3]HemiM,ToshioYoshioka.Hollowfibermembranebasedonpolyacrylonityilewithahighdegreeofpolymerizationanditsproperties[J].JMembrSci,1993,85:129.[4].[J].,1996.16(2):75.[5]LinkovVM,SandersonRD,JacobsEP.Highlyasymmer2icalcarbonmembranes[J].JMembrSci,1994,95:93.[6],,,.UHMW-PAN(I)UHMW-PAN[J].,1998,18(3):32-35.[7]ShenXY,ZhangXF,QinXL,etal.Preparationandstructure-propertiesofpH-sensitiveporoushollowgelfiberbesedonultrahighmolecularweightpolyacrylonitrile[A].IUPACWorldPolymerCongress2002Preprints[C].Beijing;2002.816.[8],,.UHMW-PAN(2)UHMW-PAN[J].,2000,26(3):140-144.[9],,,.UHMW-PAN(3)UHMW-PAN/DMSO[J].,2000,29(5):10-14.[10]ShenXinyuan,ZhuXinyuan,LiuYongjian.Theinfluenceofultra-highmolecularweightpolyacrylonitrileonitsrheologicalbehaviorindimethylsuloxide[J].JournalofDonghuaUniversity(EngEd),2001,18(3):7-10.[11][]MarcelMulder.[M]...:,1999.52-54.[12],,,.[M]..:,1996.359-363.[13],,.[M].:,1999.380-385.StudyonUHMW-PAN-basedhollowfibermembraneanditsapplication(4)PreparationtechnologyofhollowfibermembranebasedonUHMW-PANSHENXinyuan1,ZHUXinyuan2,WANGQingrui1(1.CollegeofMaterialScienceandEngineering,StateKeyLaboratoryforModificationofFiberandPolymerMaterial,DonghuaUniversity,Shanghai,200051;2.SchoolofChemicalEngineering,ShanghaiJiaotongUniversity,Shanghai200030)Abstract:Inthispaper,thehollowfibermembranewaspreparedwithultrahighmolecularweightpolyacry2lonitrile(UHMW-PAN)andthemethodandtechnologyofpreparinghollowfibermembranewerestudiedindetails.Theexperimentresultsindicatethathollowfibermembraneproducedbygel-spinninghasbetterstrengthatbreakandflexibility,thesuitablespinningtechnologyconditionsare:molecularweightMvis1.29106,concentrationofsolutionCis3%,airgaplengthLis3cm,anddrawingratioRis14.Keywords:ultrahighmolecularweightpolyacrylonitrile;gelspinning;hollowfibermembrane;tenacity(8)HydrophlicmodificationofUHMWPEmicrofiltrationmembrane()ThepropertyandfiltrationperformanceofthemembraneGUOHongxia,WANGPing,CHENCuixian,LIJiding(DepartmentofChemicalEngineeringTsinghuaUniversity,Beijing100084,China)Abstract:ThewettingcharacteristicofthemodifiedporousUHMWPEmicrofiltrationmembranewasinvesti2gatedbythemoistureadsorptionofthemembranewithgrafteddegree.Also,theamountofBSAadsorbedonthemodifiedmembraneswassmallerthanthatoftheunmodifiedmembraneanddecreasedwiththegraftedde2gree.Themodifiedmembraneshowedenhancedwettingpropertyandbetteranti-foulingcapabilitythanthatoftheunmodifiedmembrane.Thefiltrationperformancesofthemembranesasafunctionofthegrafteddegreein2dicatedthatthemodifiedmembranesshowedamaximumdeionizedwaterfluxin18.0%grafteddegreeandamaximumBSAsolutionfluxin25.0%.Moreover,thefluxrecoveryofthemodifiedmembraneaftercleaningwassuperiortothatoftheunmodifiedmembrane.Keywords:UHMWPEmicrofiltrationmembrane;flux;BSAadsorption;filtrat