超高摩尔质量聚乙烯平板微孔膜制备及亲水性能研究

37220092CHINAPLASTICSINDUSTRY386333cfxiao@tjpu1edu1cn:,,1982,,tjjzh_2005@1631com3,33,(,300160):,(UHMWPE)20000(PEG20000),PEG10%,,PEG20000,,PEG,17d,PEG114%,:;;:TQ32511+2;TQ320172+1:B:1005-5770(2009)02-0071-04StudyofUltrahighMolecularWeightPolyethylene(UHMWPE)FlatPorousMembraneandItsHydrophilicityJIANGZhao2hui,XIAOChang2fa,LINa2na(KeyLab.ofHollowFiberMembraneMaterialsandMembraneProcess,MinistryofEducation,TianjinPolytechnicUniversity,Tianjin300160,China)Abstract:Flatporousmembraneofultrahighmolecularweightpolyethylene(UHMWPE)/polyethy2leneglycol2000(PEG2000)waspreparedbythermallyinducedphaseseparation(TIPS)withwhiteoilasdiluent.TheinfluenceofPEG20000contentonthemembranespurewaterflux,porosityandhydrophilicitywasinvestigated.Theresultsshowedthatthemembranewith10%PEGhasthelargerpurewaterflux,poros2ityandthebetterhydrophilicity.Inaddition,theeffectofwashingtimeonthemembraneshydrophilicitywasstudied.Besides,theresidualstatusofPEG20000inmembraneswasanalyzedquantitativelyusinginfra2redspectra.Theresultsshowedwiththeincreaseofthewashingtime,thePEGleftinthemembranesde2creased.Afterwaterwashing17days,themassfractiondecreasedto114%andthehydrophilicityhadgreatlyimproved.Keywords:UltrahighMolecularWeightPolyethylenePorousMembrane;Hydrophilicity;ThermallyInducedPhaseSeparation,,,(UHMWPE),UHMWPE,,,,,UHMWPE,,,UHMWPE,,,;,UHMWPE,,,,[1],UHMWPE1980,SmithUHMWPE;1986,Lopatin[2]UHMWPE,UHMWPE,UHMWPE,2007[3]172009UHMWPE[4]UHMWPE,UHMWPEPEG20000UHMWPE,,PEG20000,PEG20000UHMWPEUHMWPE5%,PEG200000%5%10%15%,,UHMWPE1111UHMWPE:Mw=3165106g/mol;;:;120#:;PEG20000:,;1076:;:,112UHMWPEUHMWPEPEG20000,,20,120#UHMWPE,113UHMWPE113110115MPa10min,011MPa(1):J=V/At(1):J,L/(m2h);V,L;A,m2;tV,h1131210mLBT2224SfP,(2):=(1-f/P)100%(2),,%;f,kg/m3;P,kg/m311313JY282()UHMWPE,11314(FTIR)BRUKERVECTOR22PEG200002cm-1,64,5004000cm-1,506h2211UHMWPEPEG20000,UHMWPE,PEG,[5]UHMWPEPEG20000UHMWPE,UHMWEPEPEG20000,PEG20000,,;PEG20000,,,1PEG20000UHMWPEFig1EffectofPEG20000concentrationonpurewaterfluxofthemembraneandporosityofthemembrane1,PEG,[5]PEG,,,PEG[6]PEG20000,UHMWPEPEGPEG20000,UHMWPEPEG:PEGPEGUHMWPE27372:,UHMWPE;PEG,,;PEG,,,PEG10%,,[7],PEG,,;PEG,,,PEG10%,PEG,PEG212UHMWPEUHMWPE[2],,,,UHM2WPEPEGUHMWPE,UHMWPE,,2PEG20000UHMWPEFig2EffectofPEG20000concentrationoncontactangleofthemembranePEGUHMWPE2PEG90,,PEG,PEG,PEG5%,,PEG,,PEG,PEG;PEG10%,1,,PEG,;PEG15%,PEG,213UHMWPE,,,,3UHM2WPE,3,,PEG3UHMWPEFig3Effectofwashingtimeoncontactangleofthemembrane214UHMWPE,,PEG,,,,[8]4UHMWPEFig4Infraredspectraofthemembranewithdifferentwashingtime4UHMWPE4,PEGUHMWPE,UHMWPEPEG1d,3350cm-1OH,,,;2915cm-12848cm-1CH;1470cm-1CH;1110cm-1372009COC[8],;720cm-1(CH2)n(n4)[9]UHMWPE1110cm-1,PEG10%UHMWPE,PEG,[10],UHMWPEPEG1470cm-11110cm-1,Beer-Lambert(3)A1470A1110=cPE+cPEGcPEG+c=cPEG+(3),A1470A11101470cm-11110cm-1;CPEGPEG;,010078701422065(3)PEG115,PEG10%1d,PEG3%;17d,PEG114%,,PEGUHMWPEA1470/A1110,PEG,,UHMWPE3UHMWPEPEG,PEG10%,UHMWPE;PEG,PEG10%,,,10,PEG10%;,UHM2WPEPEG,,,UHMWPE[1],,,.[J].,2001,30(4):55-59.[2].[J].,2000(3):23.[3]DINGHuaiyu,TIANYe,WANGLihua,etal.Preparationofultrahigh2molecular2weightpolyethylenemembranesviaathermallyinducedphaseseparationMethod[J].JApplPolymSci,2007,105:3335-3362.[4],,.[J].,2007,38:2731-2734.[5],.[J].,2003,29(6):323-326.[6],,,.(I).,1996,26(3):297-301.[7].[D].:,2007.[8],,.PEGPLA[J].,2008,28(1):4-7.[9].[M].:,1992:37-39.[10]WUHong,LINZhiyong,QIANHao.Quantitativeanalysisoftwocomponentpolymerblends(PEG/PE)byinfraredspectroscopy[J].SpectroscSpectralAnal,2006,26(1):70-74.(2008-10-31)47