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:2001205216:(49874008):(1945-),,,20023233()JournalofNortheasternUniversity(NaturalScience)Mar.2002Vol123,No.3:100523026(2002)0320303204,,(,110004):,SiO2,,DBP,,:;;(DBP);;;:O64712:A,,,,1,(1),,,pH=12(2),,pH=1112,(3);BET22.1SiO2,1SiO2,A1A2A31,,,,1Fig.1EffectofamountofsurfactantonwhitecarbonsDBPSiO2,pH,,,,,,,H+,OH-,;,,;,,;,,2.2,SiO22,B1B2B3A1A2A3,B0,,SiO2,,B0,B1B2B3,,,[14],[1],[1],2SiO2Fig.2EffectofamountsilicaonwhiteCarbonsDBP2.3w(SiO2),,,11(m3/g)Table1Relationbetweensurfactantandsurfaceareaw(SiO2)/%2143.9218.66203.9339.22.42,,,,,3,,SiO2,,SiO2,6%[57]2(g/cm3)Table2Relationbetweensurfactantanddensity(g/cm3)/%A1A2A30.10.3910.3560.2710.20.3020.2900.1590.30.2710.2800.1390.40.2620.2580.1240.50.2310.2240.1093(g/cm3)Table3Relationbetweensurfactantanddensity(g/cm3)/%A1A2A320.4050.4270.39740.2180.2020.20950.1680.2580.15060.1410.1860.121[8,9]A2,3,A3,4A1,5,3A2Fig.3WhitecarbonofA2added4A3Fig.4WhitecarbonofA3added403()235A1Fig.5WhitecarbonofA1added,,,[10]3(1),,,(2),,,:[1][J],1996,3(16):16-18(LiuZZ.EffectontheprocessofDBPofwhitecarbonandsurfacearea[J].InorganicChemicalsIndustry,1996,3(16):16-18.)[2],,[J],2000,32(6):29-30(LiJZ,ZhaoJ,QuQC.Preparationofprecipitatedsilicabysolmethod[J].InorganicChemicalsIndustry,2000,32(6):29-30.)[3],,,2SiO2[J],1995,10(1):69-74(ShenJ,WangY,GanLH,etal.TheresearchonpropertiesandpreparationofSiO2aerogelbysol2gelmethod[J].JournalofInorganicMaterials,1995,10(1):69-74.)[4],[J],1991,11(3):11-13(XiaoCC,YaoPH.Theresearchonpreparationofwhitecarbonbyultrafine2precipitatesmethod[J].InorganicChemicalsIndustry,1991,11(3):11-13.)[5][J],1990,5(4):156-159(YangXZ.StructureoftheNaClandprecipitatesilica[J].ChemicalWorld,1990,5(4):156-159.)[6]TitulaerMK,JansenJBH,GeusJW.Thepreparationandcharacterizationofsol2gelsilicaspheres[J].Journalofnon2crystallinesolids,1994,(170):1-12.[7]TitulaerMK.Fluidcompositioneffectsonsilicagelaging[J].JournalofNon2CrystallineSolids,1994,(170):13-20.[8],[J],2001,33(2):22-24(ZhouCL,KouZF.PreparationandapplicationofultrafinesilicainChina[J].InorganicChemicalsIndustry,2001,33(2):22-24.)[9],,,[J],2001,17(11):972-977(LiYH,HuangJB,WangCZ,etal.Thesurfacechemicalpropertiesofhydrolyticsurfactants[J].ActaPhys2ChemSin,2001,17(11):972-977.)[10][M]:,1982(ZhaoGX.Physicalchemistryofsurfactants[M].Beijing:BeijingUniversityPress,1982.)5033:ImprovingtheWhiteCarbonsPerformancebySurfactantTONGShu2xun,ZHANGLi2jun,SHIDan2zhao(SchoolofScience,NortheasternUniversity,Shenyang110004,China.Correspondent:TONGShu2xun)Abstract:Whentheaddedamountofthesurfactantsofthedifferentkindchanges,theinfluenceofthesurfactantsonthewhitecarbonsDBPandsurfaceareawasstudiedontheconditionsofthesameorvariouscontentofSiO2.Differentfromthetraditionaltwo2stepmethodofacidsilicasol,onemoreprocedureofaddingsurfactantwasadoptedintheprocessofwhitecarbonproduction.TheproducedwhitecarbonhashigherDBP,largersurfaceareaandthepropertyofaerogels.Themechanismofimprovingthewhitecarbonsperformancewasdiscussed.Keywords:whitecarbon;silicasol;difutyl2phthalateabsorptionnumber(DBP);surfacearea;surfactant;silicaaerogel(ReceivedMay16,2001),,Lyapunov,,,k,H2OCO2,Edwards,,,k,,,,,AZ91D,,,,,;,,,,,,,,603()23