共混比对氯化聚氯乙烯CPVC省略缩丁醛PVB共混超滤膜的影响陈云逸

114Vol．11No．420174ChineseJournalofEnvironmentalEngineeringApr．20172016－01－122016－06－121988—。[e-mail]*[e-mail]/PVB*201620CPVCPVBCPVCCPVC/PVB。CPVC/PVB、、、、。CPVC/PVB9∶1PVBCPVC/PVB43.41%CPVC/PVBCPVC。CPVC/PVBCPVCCPVC。CPVCPVBX703A1673-9108201704-2197-08DOI10.12030/j．cjee．201601066PreparationandcharacterizationofCPVC/PVBblendultrafiltrationmem-braneCHENYunyiLIUQianwenLYVXiaoningGUQianqianWANGJun*CollegeofEnvironmentalScienceandEngineeringStateEnvironmentalProtectionEngineeringCenterforPollutionTreatmentandControlinTextileIn-dustryDonghuaUniversityShanghai201620ChinaAbstractToimprovethehydrophilicityofchlorinatedpolyvinylchlorideCPVCultrafiltrationmembranespolyvinylbutyralPVBwasblendedwithCPVCandCPVC/PVBmembraneswerepreparedusingasolutionblendingmethod．Theeffectsofthepolymerratioonthecharacteristicsoftheblendedmembranessuchasmem-branestructurewaterfluxretentionratetensilestrengthhydrophilicityandcontaminationresistancewerediscussed．Theresultsshowedthatwhentheblendratiowas9∶1CPVC∶PVBthemasscontentofPVBwas43.41%onthesurfaceofthemembraneindicatingthattheCPVC/PVBmembranewasasignificantimprove-mentoverthepureCPVChydrophilicmembrane．InthisratiothepurewaterfluxoftheCPVC/PVBmembranewastwiceasmuchasitwasforthepureCPVCmembrane．Itsantifoulingperformanceandsewagefluxweresig-nificantlybettercomparedwiththepureCPVCmembrane．KeywordschlorinatedpolyvinylchlorideCPVCpolyvinylbutyralPVBultrafiltrationmembranewaterfluxanti-foulingCPVCPVCPVCCPVCPVC50%。CPVC、、、PVC1。CPVC。CPVC。CPVCCPVC2。PVA3、PVB4、CA5、PMMA6、TiO72Al3O82。PVBPVBNN-DMFNN-DMAC11、。PVB9。PVB12。10-11PVBPVDF。13PVBPU。14PVBPVC。PVBCPVC。CPVCPVBCPVC/PVB、、、、、。X-XPSPVBCPVC/PVB。11.1CPVC1000PVBCPNN-DMAcCPBSA67KDaBＲ。NDJ-1UV-7504P322WJSM-5600LVMSC300mLH5KS-1105X-PHI-1600。1.2PVBCPVC250mLDMAc4h。1.3NDJ-1。1.4CPVC/PVBCPVC/PVB200μm、50%、。1.5CPVC/PVB1.5.1SEM48hJSM-5600LV。1.5.2H5KS-110520mm·min－1CPVC/PVB。ε=L'－LL1ε%L'cmLcm1.5.3MSC0.1MPaCPVC/PVB。Jw=VAt2JwL·m－2·h－1VLA37.37×10－4m2tVh。89124CPVC/PVB1.5.40.1%BSA67KDa。280nm。Ｒ=Af－ApAf×100%3Ｒ%Af、Ap。1.5.5CPVC/PVB1322WCPVC/PVB。10s155。2X-XPSX-XPSPHI-1600。CPVC/PVB0∶10、1∶9、2∶8、3∶7、10∶0C、O、Cl。14.0kV250W1×10－8Torr0～1500eV。CPVCECPVC=AXACPVC4ECPVCCPVCAXXPSCPVC/PVBACPVCCPVC。PVBEPVB=1－ECPVC5EPVBPVB。1.5.6CPVC/PVBCPVC/PVB。0.1MPa1%0.15MPa30min。φ=JeJ06φ%J0L·m2·h－1JeL·m2·h－1。1Table1WaterqualityparametersofSongjiangsewagetreatmentplantsecondaryclarifiersupernatant/mg·L－1CODBODNH3-NTPSS55.716.323.90.783.2MBＲ。。0.1MPaMSC。1。22.1CPVC/PVB。、991211CPVCPVB。CPVCPVBCPVC。CPVCCPVC18%。CPVC80℃。18%80℃CPVC/PVB。1CPVC/PVBFig．1ShearviscosityofCPVC/PVBblendsolutionatdifferentblendratio118%80℃CPVC/PVB。1CPVC。CPVC。CPVCCPVC/PVB。2.2CPVC/PVB218%80℃CPVC/PVB50010000SEM。2akCPVCPVBCPVC1618-19PVB。。2a2k。2bjCPVC/PVBPVBCPVC/PVB5/5PVB5/5PVB。CPVC/PVBCPVCPVBCPVC/PVBCPVC/PVBCPVCPVB。CPVCPVBCPVC/PVB。2.3CPVC/PVB218%CPVC/PVB。2CPVC/PVB、Table2WaterfluxBSArejectionrateandmechanicalbehaviorofCPVC/PVBblendmembranesatdifferentblendingratioCPVC/PVB10/09/18/27/36/45/54/63/72/81/90/10/L·m2·h－1217.6446.0321.5208.5222.7230.5161.5150.221.620.10.1BSA/%99.897.896.196.397.493.294.498.599.799.899.9/N·mm－25.935.344.694.154.342.852.883.613.854.114.28/%1613111011710162423352CPVC/PVBPVBCPVC/PVB00224CPVC/PVB2CPVC/PVBFig．2EffectsofblendratioofCPVC/PVBonthecrosssectionandsurfacemicrostructureofCPVC/PVBblendultrafiltrationmembrane9/1、5/5、PVB。PVB9/1CPVC/PVBPVB。2CPVC/PVBBSA93.2%10nm。3CPVC/PVBFig．3ContactangleofCPVC/PVBblendmembranesatdifferentblendingratio2.4CPVC/PVB2.4.1CPVC/PVB。90°90°17。3CPVC/PVB。3CPVC/PVB10/07/388°66°CPVC/PVBPVB7/30/1062°102211CPVC/PVB。2.4.2X-XPS4CPVC/PVBXPSFig．4XPSspectraofCPVC/PVBblendmembranesatdifferentblendingratioCPVC/PVBPVBPVB。X-XPS。PVBCPVC、PVB、CPVCCPVC/PVB。4CPVCPVB9/1、8/27/3CPVC/PVBO、C、ClXPS33CPVC/PVBO、C、Cl。3PVBO9.37%CPVCO0%。PVBCPVC/PVBO。9/1CPVC/PVBO5.56%PVBOPVB43.41%PVBPVBPVB7/38.35%PVBCPVC/PVB/PVB83.24%。。3CPVC/PVBTable3ContentofelementsonsurfaceofCPVC/PVBblendmembranesatdifferentblendingratio/%CPVC/PVBC1sO1scl2ps/%OPVBCPVC10/061.900.0017.000.000.00100.009/168.365.569.625.5943.4156.598/271.786.175.598.1567.1232.887/372.348.352.859.6183.2416.760/1073.919.370.0010.2100.000.002.5CPVC/PVB5CPVC/PVB10/0、9/17/3、、4。49/1CPVC/PVB、PVBPVB2fhk。CPVC/PVB9/1CPVC/PVB。20224CPVC/PVB5CPVC/PVB10/0、9/17/3Fig．5DataoffluxrecoveryandfluxofrealwastewatertestatratioofPCVCtoPVBof10/09/13/74CPVC/PVBTable4EffectsofblendratioonfluxrecoveryandfluxofrealwastewaterofCPVC/PVBmembranes/L·m2·h－1/L·m2·h－1/%/L·m2·h－1CPVC217.7118.65477.49/1446.0274.561116.228/2321.5171.75454.687/3208.5101.44963.16/4222.7110.44932.45/5230.5125.45464.84/6161.591.65745.83/7150.280.05350.92/821.613.26110.41/920.112.7638.0PVB0.10.1810.13CPVC/PVB、、、、CPVC/PVB9∶1PVBCPVC/PVB43.41%CPVC/PVBCPVC。CPVC/PVBCPVCCPVC9/1。1．C．192001201-2022ＲANAD．MATSUＲAT．SurfacemodificationsforantifoulingmembranesJ．Chem．Ｒev．20101102448-24713．PVDF/PVAC．200738121975-19804．PVC/PVBJ．20039122-1305JUNGB．PreparationofhydrophilicpolyacrylonitrileblendmembranesforultrafiltrationJ．JournalofMembraneScience20042291129-1366OCHOANAMASUELLIMMAＲC-HESEJ．Effectofhydrophilicityonfoulingofanemuls