PVBPVDF共混膜的制备及其性能的研究严丽

21[1]。、、。、、[2-3]。、。PVDF、、、PVDF[4-7]。PVDF、PVDF、、PVDF[8]。PVDF、、、、、[9]。PVDFPVA、CA、PMMA、TiO2Al3O2[10-14]。PVBPVDF。PVB[15]。PVBPVB-PVCPVB-PES[16-17]。PVBPVC、PES。PVBPVDFPVB-PVDFPVB-PVDFSEM、、PVB、PVDF。11.1PVDFFR904PVBDMACCP。1.2PVDF、PVBDMAC90℃、。1.3NDJ-1PVB-PVDFDMAC15%PVB-PVDF201620PVBPVDFPVB-PVDF。PVB-PVDFPVDF、PVBPVBPVDF。23%、PVBPVDF7:3。TQ028.8A1000-3770(2011)[e-mail][e-mail]3712201112TECHNOLOGYOFWATERTREATMENTVol.37No.12Dec.,201128DOI:10.16796/j.cnki.1000-3770.2011.12.007η。1.4、50%24h。1.51.5.1JSM-5600LV。1.5.230min0.18MPa。JwJw=V/(At)。VAtV。1.5.3H5KS-1105。5cm×1cm2。1.5.4322W。5cm×1cm5。22.1116%PVB-PVDF。SinghS[18]。1SPVB-PVDF。2.2215℃14%～20%PVB、PVDF73、82、91。214%～20%7:3、8:2、9:1PVBPVDF。7:314%405.1L·m-2·h-1PVBPVDF19.75、59.81L·m-2·h-1PVB、PVDF。2.3323%5、90℃PVB-PVDFPVBPVDF。3PVB、PVDF。3aPVBPVB2PVB1PVB-PVDFFig.1ShearviscosityPVB-PVDFchangewithdifferentblendsolutionratio45678910m(PVDF):m(PVB)1:09:18:2η/Pa·s2Fig.2waterfluxofblendmembranewithdifferentpolymerconcentrations1314151617181920210100200300400500J/(Lmh)w(
)/%PVB-PVDF29PVB。PVDF。3c、3d、3e、3i、3j、3k。PVB、PVDF。19。3f、3g、3h64、55、46。2.445℃22%～24%PVB、PVDFSt。4。PVBPVB50%。PVB。PVBPVDFPVDFPVBPVDF。446、55、64、73473。SEM64、55、46PVB-PVDFPVBPVDF2。73。2.55PVB-PVDF。53(a)PVB3(b)PVDF3(c)m(PVB):m(PVDF)=9:13(d)m(PVB):m(PVDF)=8:23(e)m(PVB):m(PVDF)=7:33(f)m(PVB):m(PVDF)=6:43(k)m(PVB):m(PVDF)=1:93SEMFig.3SEMofdifferentblendsolutionratio3(g)m(PVB):m(PVDF)=5:53(h)m(PVB):m(PVDF)=4:63(i)m(PVB):m(PVDF)=3:73(j)m(PVB):m(PVDF)=2:84Fig.4Effectofpolymerratioonwaterfluxandtensilestrength0100200300400500600700800J/Lmhm(PVB):m(PVDF)
02004006008001,000S/Ncm371230。。23%。23%。2.6。1。1PVDFPVBPVBPVDFPVBPVDF。3PVB-PVDF。、PVB-PVDFPVDF、、PVB、PVDF。23%、PVBPVDF73。[1],.[J].,2002(4):136-138.[2],,,.[J].,2004,27():166-168.[3],.[J].,2005,25(4):8-11.[4],,.[J].,2009,21(4):468-471.[5],,.[J].,2003,22(8):808-812.[6],,.PVDF[J].,2003(6):852-857.[7],,.PVDF/PVC[J].,2008,29(1):17-21.[8],.PVDF/TPU[J].,2007,35(1):66-68.[9].[M].:,1987:58-59.[10],,.PVDF/PVA[J].,2007,38(12):1975-1980.[11],,,.PVDF/CA[J].,2002,22(6):4-8.[12]NAOchoa,MMasuelli,JMarchese.EffectofhydrophilicityonfoulingofanemulsifiedoilwastewaterwithPVDF/PMMAmembranes[J].JournalofMembraneScience,2003,226:203-208.[13]CaoXC,MaJ,ShiXH,etal.EffectofTiO2nanoparticlessizeontheperformanceofPVDFmembrane[J].AppliedSurfaceScience,2006,253(4):2003-2010.[14]LuY,YuSL,ChaiBX,etal.Effectofnano-sizedAl2O3particlesadditiononPVDFultrafiltrationmembrancesperformance[J].JournalofMembraneScience,2006,276(1/2):162-167.[15],,,.[J].,2005,25(6):59-63.[16],.PVC/PVB[J].,2007,22(3):36-39.[17],,,.PVB-PES[C]..:,2005:320-326.[18]SinghYP,SinghRP.Compatibilitystudiesonsolutionsofpolymerblendsbyviscometricandultrasonictechniques[J].EuropeanPolymerJournal,1983,19(6):535-541.5Fig.5Effectofpolymerratioonwaterfluxandtensilestrength2223242526150200250300350400450w(
)/%300400500600700800900J/LmhS/Ncmθ/(°)78.3361.0669.3169.7169.901Tab.1Contactangleoftheblendmembranewithdifferentratiom(PVB):m(PVDF)0:11:09:18:27:335PVB-PVDFmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmm.31PREPARATIONANDPROPERTIESOFPVB-PVDFBLENDMEMBRANEYanLi,WangJun(CollegeofEnvironmentalScienceandEngineering,DonghuaUniversity,Shanghai201620,China)Abstract:Firstthecompatibilityofpolyvinylbutyral(PVB)-polyvinylidenefluoride(PVDF)systemwasresearcheduseingshearviscositymethod,theresultsshowedthatthesystemwaspartiallycompatiblesystem,andthenusingphaseinversiontopreparePVB-PVDFblendmembrane,themembranestructureandperformanceweretested.Theresultsshowedthat,waterfluxofPVB-PVDFblendmembraneswashigherthanthePVDFmembraneandPVBfilm,thePVBaddingwasabigimprovementfordrophilicityofPVDFmembraneandtensilestrength.Throughtheblendmembranescomposedofdifferentpermeabilityrateandtensilestrengthofthecomparisonswefoundthatfilmwhichconcentrationwas23%,ratiowas7:3hadhighwaterfluxandgoodtensilestrength,sotheblendfilmwhichpolymerconcentrationof23%,theratioof7:3hadthebestperformance.Keywords:polyvinylidenefluoride;polyvinylbutyral;blendfilmmodified100%。3KN-BBi、LaTiO20.5%Bi0.2%La。Bix/TiO2Bi0.5Lay/TiO2KN-B1。Bi0.5La0.2/TiO2KN-B2.0g·L-140mg·L-1pH2.220min。KN-B100%。[1]SilvaCG,FariaJL.Photochemicalandphotocatalyticdegra-dationofanazodyeinaqueoussolutionbyUVirradiation[J].JournalofPhotochemistryandPhotobiologyA:Chemistry,2003,155:133-143.[2],,,.[J].,2000,19(1):26-29.[3].[J].,2004,14(4):30-34.[4],,.[J].,2008,37(8):913-916.[5],,.TiO2GR[J].,2010,27(1):28-32.[6],,,.[J].,2003,19(1):25-29.6Fig.6Thedegradationrateofdifferentdye0102030405060020406080100
%minPREPARATIONANDPHOTOCATALYTICACTIVITYOFBiANDLaCO-DOPEDTiO2JiangJuhui,WangLinhao,ZhangShenglin,WangHui（CollegeofChemistryandEnvir