表面活性剂对二氧化硅溶胶黏度性质的影响

1,2,1(1.,266510;2.):,,3,,(SDBS),OP-10(SDS)SDBSSDBS,,4.610-3mol/L:;;:TQ127.2:A:1006-4990(2009)07-0026-03EffectofsurfactantsonviscositypropertiesofsilicasolTianLipeng1,2,WangLi1(1.SchoolofChemistryandEnvironmentalEngineering,ShandongUniversityofScienceandTechnology,Qingdao266510,China;2.SchoolofChemistryandMolecularEngineering,QingdaoUniversityofScienceandTechnology)Abstract:Viscositypropertiesofsilicasolwithdifferentconcentrationswereinvestigated.Effectsofaddingdifferentsurfactantsintosilicasolonitsviscositypropertieswerestudiedbymeansofviscositymethod.Itwasfoundthatdirectaddi2tionofthreesurfactantsallresultedinreductionofviscosityinvariousdegree,ofwhichsodiumdodecylbenzenesulfonate(SDBS)ismoreeffectivethanemulsifierOP-10andsodiumdodecylsulfate(SDS).ItwasspeculatedthatthemechanismofviscosityreductionreliedonthecoveringprocessofSDBSonthecolloidalparticles.Effectofconcentrationontheviscosi2tyreductionofSDBSbehavedascriticalmicelleconcentrationrule,andcriticalconcentrationwasabout4.610-3mol/L.Keywords:surfactant;silicasol;viscosity,,,SiO2SiO2,[1],,11.1:(pH=10,30%,w(Na2O)0.3%,);OP-10;(SDBS);(SDS):;;;pH1.225,NaCl:,NaClpH,[2]:2.5mS/cm,NaCl0.02mol/L,pH1022.1NaCl0.02mol/LpH10,30%(,)(),,62INORGANICCHEMICALSINDUSTRY41720097,11,,Einstein[3]:=0(1+k)(1):0,k,10.05,22,0.05(1)0.30,2,[4],ZbigniewAdamczyk[2]0.05,,,,Einstein2.20.03,1,OP-10,SDBS,SDS,0.5g/L,,,33,3,,SDBS,OP-10SDS3,SDBS20%,SDBS,3pH=10,SDBS,,SDBSSDSNa+,3SDSSDBS,Na+SDBS,,,,,,SDBSSDS,OP-1010,,SDBS0.05,SDBS,44,0.05SDBS,,0.0342.35SDBS30%(=0.16)5,SDBS,7220097:,SDBSSDBS,5SDBS[3],,(),(CMC)5SDBS30%(=0.16)[5],SDBSCMC1.6210-3mol/L5,1.6g/L,4.610-3mol/LSDBS,SDBS,,,SDBS,4.610-3mol/L,SDBS31),0.03,Einstein;0.05,Einstein2)3,,SDBS,OP-10SDSSDBS3)SDBS,SDBS30%(=0.16)4.610-3mol/LSDBS:[1],,,.SiO2[J].,2005,24(1):3-7.[2]ZbigniewAdamczyk,BarbaraJachimska,MarataKolasinska.Struc2tureofcolloidsilicadeterminedbyviscositymeasurements[J].J.ColloidInterfaceSci.,2004,273:668-674.[3],,.[M].3.:,2004:111,425.[4]KimuraHiroshi,NiimiHiroyuki,TsuchidaAkira,etal.Importanceoftheelectricaldoublelayersfortherheologicalpropertiesofcol2loidalliquids[J].ColloidandPolymerScience,2005,283(10):1079-1084.[5],,.[J].,1995,17(2):82-84.:2009-02-24:(1973),,,,10:[e-mail](22)30(5):38-39.[3],.[J].,2002,36(6):8-14.[4],,,.PVC[J].,2001,15(6):38-40.[5]PearsonRG.Thetheoryofacidandalkali[J].J.Amer.Chem.Soc.,1963(85):3533.[6],,,.PVC[J].,2003,21(3):255-257.[7],,.PVC[J].,1996,14(4):311-313.[8],.[J].,1999,28(5):48-50.[9].[J].,2006(10):25-26.:2009-02-02:(1964),,,,R6p1997,20:[e-mail]82417