[1]。PVDF、、[2]。YangMingchenPAN-PVDFUFPAN[3]。SaeidRajabzadehPVDF-PMMA30%PMMA25%[4]。UF[5]。MKhayetPVCPVC[6]。WAlbrecht[7]。PANPVDFUF、、UF。11.1PVDFPANBSAMm=67×103N,N-DMAcLiCl。UF15-JEUV-2450AGS-JDSA100JEM-6700F。1.2、LiCl、、PVDF、PANPVDF-PAN-1111211.2661002.250022、N,N-、LiCl-、、。SEM40%BSA99%。16%3.16MPa。TQ028.8A1000-3770(2010)11-0107-0062010-01-179732009CB6234021985-0532-66781962E-mailzhengweiping-2003@163.com3611201011TECHNOLOGYOFWATERTREATMENTVol.36No.11Nov.,20101072h12h24h。。24h。1.31、。DI、DOΔr。2。0.15MPa30min25℃0.1MPaJwJw=Vw/(St)。VwtSt。3。0.1MPa20min0.5×10-3BSApH=10~11。BSARR=(Ai-A0)×100%/Ai。A0Ai。4。。lm80℃24h。PP=1-mρVM。VMVM=π(DO2-DI2)L/4Lmρ。5。σtE40mm5mm·min-1。6SEM。SEM。2PVDFPVDF16%、3%LiCl、0.48%DMAcPVDF、PAN91[8]。2.1、。、、1。1a、。、。1b、2DO/DI[9]。2.20.48%EDS12NSi。CNO45.592.015.2956.262.134.90FSi46.940.17100.0036.620.09100.00w/%x/%w/%x/%1、Tab.1Percentageofdifferentelements1(b)1618202224262830320.000.250.500.751.001.251.50 /mL min /mm1.21.41.61.82.02.2 D /D 02468101214160.000.250.500.751.001.25 /cm /mm1.41.51.61.71.8 D /D 1(a)1、Fig.1Effectofspinningtechnologyonfilmthickness,diameterratio,internalandexternaldiameter36111082.32.3.13。0。2.3.245℃、30℃4。45cm5cmMKhayet[6]。。。[10]。30℃、45℃5。55cm2.3MPa5cm。。。2.42.4.145℃10cmDMAc20%6。6a3SEMFig.3OutersurfaceSEMimagesofthehollowfibermembranespreparedatdifferentairgap3(a)0cm3(b)3cm3(c)7cm4Fig.4Effectofairgaponwaterfluxandrejection0246810121416100120140160180200220/cm J /L m h J R5060708090100R/%5Fig.5Effectofairgapontensilestrengthandelongation02468101214161.01.52.02.53.0/cm /MPa 5060708090100110E2Fig.2EDSimageofcompositehollowfibermembranePVDF-PAN-109。78%。6。Lloyd[11]。6a16c120℃40℃SEM6a16c1。2.4.245℃、10cm2。2。。20℃。3。3。。45℃20℃2。45℃、10cm4。。4203031518495.789.6405021219676.072.4t/℃Jw/L·m-2·h-1R/%t/℃Jw/L·m-2·h-1R/%2Tab.2Effectofexternalcoagulanttemperatureonwaterfluxandrejection6SEMFig.6CrosssectionandinnersurfaceSEMimagesofthehollowfibermembranespreparedatdifferentexternalcoagulanttemperatures6(a)20℃6(a1)20℃6(b)30℃6(c)40℃6(c1)40℃6(d)50℃20302020304571.974.778.03040454575.779.2P/%R/%3Tab.3Effectofexternalcoagulantandborefluidtemperatureonporosityt/℃t/℃20302.403.03669540503.053.16105110t/℃σt/MPaE/%t/℃σt/MPaE/%4Tab.4Effectofexternalcoagulanttemperatureontensilestrengthandelongation36111107SEMFig.7Cross-sectionSEMimagesofthecompositehollowfibermembranespreparedatdifferentborefluid7(a)w(DMAc)=20%7(b)w(DMAc)=30%7(c)w(DMAc)=40%7(d)w(C2H5OH)=40%50℃3.16MPa、110%。2.5[12]。20℃、5cm7。7。。7d40%7cBSA99%。25℃8。8。8c8b。。。3-PVDF-PAN-UF、、。20、45℃315L·m-2·h-116%3.16MPa。SEM40%BSA99%。[1]WangSM,LuYW,WangSM.StudyonthepreparationandcharacteristicsofPVDF/CAblendultrafiltrationmembrane[J].MembrSciTechnol.,2002,22(6):4-8.[2],,,.TiO2/PVDF[J].,2004(5):709-712.8(c)w(C2H5OH)=40%3cm8SEMFig.8InnersurfaceSEMimagesofthecompositehollowfibermembranespreparedatdifferentborefluid8(a)w(DMAc)=40%5cm8(b)w(C2H5OH)=40%0mPVDF-PAN-111STUDYONSPINNINGTECHNOLOGYOFPVDF-PAN-ORGANICNANO-CLAYCOMPOSITEHOLLOWFIBERUFMEMBRANEZhengWeiping1,GaoXueli1,MaYuxin1,WangDuo1,WangLiguo2,GaoCongjie1(1.CollegeofChemistryandChemicalEngineering,OceanUniversityofChina,Qingdao266100,China;2.CollegeofChemistryandChemicalEngineering,JinanUniversity,Jinan250022,ChinaAbstract:Polyvinylidenefluoride(PVDF)-Polyacrylonitrile(PAN)-organicnano-claycompositehollowfiberultrafiltratonmembranewaspreparedbydry-wetspinningmethod.ThemainmembranematerialwasPVDFwhichwascommixedwithPANandthemassratioofPVDFandPANwas9:1.N,N-dimethylacetamidewasthesolventandanhydrousLiClwasemployedasnon-solventadditive.Theeffectfactorssuchasairgap,externalcoagulanttemperature,borefluidtemperatureandsoonwereinvestigated.Theeffectofpreparationtechnologyonpurewaterflux,rejectionofbovineserumalbumin(BSA),porosityandtensilestrengthwasstudied.Inaddition,thestructureandmorphologyofhollowfiberUFmembraneswerestudiedbyscanningelectronmicroscope(SEM).Itwasfoundthatpreparationtechnologyaffectedboththestructureandperformanceofhollowfibermembranes.WaterfluxincreasedwithincreasingtemperatureandairgapwhilerejectionofBSAwastheopposite.Elevatedtemperaturewasbeneficialtomechanicalpropertiesandthemaximumtensilestrengthwas3.16MPa.Increaseinconcentrationofborefluidwasconducivetoinhibittheproductionofmacroporousstructure.Keywords:polyvinylidenefluoride;polyacrylonitrile;hollowfiberultrafiltrationmembrane;organicnano-clay[3]YangMingchien,LiuTingyu.Thepermeationperformanceofpolyacrylonitrile/polyvinylidinefluorideblendmembranes[J].JournalofMembraneScience,2003,226(1-2):119-130.[4]SaeidRajabzadeh,TatsuoMaruyama,YoshikageOhmukai,etal.PreparationofPVDF/PMMAblendhollowfibermembraneviathermallyinducedphaseseparation(TIPS)method[J].SeparationandPurificationTechnology,2009,66(1):76-83.[5],,.[J].,2009,30(1):72-75.[6]MKhayet,MCGarcía-Payo,FAQusay,etal.Structuralandperformancestudiesofpoly(vinylchloride)hollowfibermembranespreparedatdifferentairgaplengths[J].JournalofMembraneScience,2009,330:30-39.[7]WAlbrecht,ThWeigel,MSchossig-Tiedemann,etal.Formationofhollowfibermembranesfr