单内皮层中空纤维聚离子复合膜的组装及其渗透汽化性能

1,1,13,1,2(1.,100022;2.,100085):PAN,-PEI/PAA,.,/.,5095%/,23731,360.5g/(m2h),.:;;;LBL:TQ028.8:A:1007-8924(2009)05-0001-05,,20[1-5].,,,,,..:Tsai[6-8](PAN),,90%/;[9](PVA)-(SA),.,,,.,.[10,11],,(PAA)(PEI),-(LBL),,/.11.1();(PAA,400,Aldrich);(PEI,6,Aldrich);(PEG,600012,);(613,:2008-05-21;:2008-05-27:(8071001);(Z08000603170801);(20806001,20876003);(973,2009CB623404):(1981-),,,,.3,010-67392961,E-mail:[e-mail]295Vol.29No.5200910MEMBRANESCIENCEANDTECHNOLOGYOct.2009©1994-2010ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.);();().1.2GC-14();TOC-VCPH();UV-2550/();AdventurerTM();SHB-II2IA();();Hi2tachi-4700(SEM)();LBL,;,.1.3PAN652mol/L,15min,,,pH.15cm,7mm,,.LBL1,PAN.PEIPAA,,1.;2.;3.;4.;5.;6.1LBLFig.1TheapparatusfordynamicalnegativeLBLformedmembranes,,PEIPAA,.1.4(BSA),0.1MPa,,TOCTOCBSA.,.RPEG(1):R=1-m1m0100%(1),R%;m1TOCBSA(10-6);m0TOCBSA(10-6).1.5/,[10].100Pa,,:J(2),(3):J=W/(St)(2)=YA/YBXA/XB(3),W;S;t;YAYB;XAXB.1.6SEM,,,SEM.22.1PAN.1,1PEG20000R=85.78%,21PANTable1ChangeofPANmembraneandhydrolyzedPANmembraneR(PEG6000)/%R(PEG10000)/%R(PEG20000)/%R(63000)/%116.8550.5985.78100218.9123.0235.03100146.7583.9992.23100245.0662.2471.23100229©1994-2010ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.(:50,:100Pa)2.2Fig.2Effectofpolyionbillayernumbersonpervaporationperformanceofhollowfiberpolyioncomplexmembranes2,,12,,.195%/2,0.5,92.9%,248.6,295.3g/(m2h).12,,,1.2.2.0.90m/s,2.5,50,100Pa,.3,-01020MPa-0.080MPa,95%/,.,,,,.3Fig.3Effectsofvacuumonpervaporationperformanceofhollowfiberpolyioncomplexmembranes2.3.-0.040MPa,2.5,95%/.50,100Pa,.4,0m/s()0.90m/s,59.4g/(m2h)135.6g/(m2h),1564741.5:3©1994-2010ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.(gm-2h-1)/9597.00614.3237.1/9599.819981322.6/9599.9223731360.52,/,23731,,.,.,,,.,,/,.2.5SEM5,PANLBL.5(a),PAN.5(b),PEI,.5(b)5(c)5(d),0.52.5,,5-Fig.5SEMoftheinnerskinhollowfiberPEMMsassembledbyadynamicnegativepressureLBLtechnique,.3PAN,LBL,.,.,95%/,429©1994-2010ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.(m2h).[1],,.[M].:,2004:116-120.[2],,.[J].,2000,(6):10-12.[3],,.[J].,2006,34(5):37-40.[4],,.4--1/[J].,2001,21(5):58-61.[5],.[J].,1995,(3):163-169.[6]TsaiHA,ChenHC,ChouWL,etal.Pervaporationofwater/alcoholmixturesthroughchitosan/celluloseacetatecompositehollow-fibermembranes[J].JApplPolymSci,2004,94:1562-1568.[7]TsaiHA,CiouYS,ChenHC,etal.Heat-treatmentef2fectonthemorphologyandpervaporationperformrancesofasymmetricPANhollowfibermembranes[J].JMembrSci,2005,255:33-47.[8]TsaiHA,ChenWH,LeeKR,etal.Studyontheperva2porationperformanceandlong-termstabilityofaqueousiso-propanolsolutionthroughchitosan/polyacrylonitrilehollowfibermembrane[J].JMembrSci,2008,309:146-155.[9],,.-[J].,2004,33(3):216-219.[10]ZhangGuojun,GuWeiliang,JiShulan,etal.Preparationofpolyelectrolytemultilayermembranesbydynamiclayer-by-layerprocessforpervaporationseparationofalco2hol/watermixtures[J].JMembrSci,2006,280:727-733.[11]ZhangGuojun,YanHaihong,JiShulan,etal.Self-as2semblyofpolyelectrolytemultilayerpervaporationmem2branesbyadynamiclayer-by-layertechniqueonahy2drolyzedpolyacrylonitrileultrafiltrationmembrane[J].JMembrSci,2007,292:1-8.InnerskinhollowfiberpolyioncompositemembranesassembledanditspervaporationperformanceSONGXue1,ZHANGGuojun1,JIShulan1,WANGNaixin1,LIUZhongzhou2(1.CollegeofEnvironmentalandEnergyEngineering,BeijingUniversityofTechnology,Beijing100124,China;2.ResearchCenterforEco-EnvironmentalSciences,ChineseAcademyofSciences,Beijing100085,China)Abstract:Innerskinhollowfiberpolyioncompositemembranesweresuccessfullyassembledbydynamicnegativepressurelayer-by-layerabsorptionofPEI/PAApolyelectrolyteonthehollowfiberPANultrafiltrationsupportmembranes.Meanwhile,theeffectsofsupportmembranesandvacuumandflowvelocityonthepervaporationmixtureweresubsequentlyresearched.Thepervaporationperformancesofthepolyioncompositemembraneswerealsoinvestigatedbyusingdifferentalcohol/watermixtures.Inthecaseofpervaporationof95%t-bu2tanol/watermixture,underthetemperatureof50,theseparationfactorandthepermeatefluxofthepolyioncomplexmembranewereabout23731and360.5g/(m2h),respectively.Keywords:hollowfiber;polyioncompositemembranes;pervaporation;dynamicnegativepressurelayer-by-layerprocess5:5©1994-2010ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.