高分散性白炭黑的生产工艺和性能

Vol138No1298NEWCHEMICALMATERIALS38220102:(1984-),,,(,210009):,,,;,,,,;,,15min,,:,,,,,,Theprocessingandperformanceofwell2distributedsilicaZhaoJieQianHaiyan(CollegeofMaterialScienceandTechnology,NanjingUniversityofTechnology,Nanjing210009)AbstractInthereactionprocessofsilicabyvitriolprecipitation,themaineffectfactorswerethequantityofwaterinreactiveliquid,theparalleltemperatureandparalleltime.Thestudyshowedthatwiththeincreasingofthequantityofwaterinreactiveliquid,theoil2absorbedvalueincreasedfirstanddecreasedthen,bulkdensitygraduallydecreased,thesizeofamorphoussilicaincreasedfirstanddecreasedthen;withtheincreasingofparalleltemperature,theoil2absorbedvalueincreasedfirstanddecreasedthen,bulkdensitygraduallydecreased,thesizeofamorphoussilicadecreasedfirstandin2creasedthen;withtheincreasingofparalleltime,theoil2absorbedvalueincreasedfirstanddecreasedthen,bulkdensitydecreasedfirstandincreasedthen,thesizeofamorphoussilicaincreasedfirstanddecreasedthen.Theresultsshowedthataseriesofproductswithdifferentpropertiescouldbeobtainedbyvaryingreactingconditions,sotheapplicationfieldofthewhitecarbonwillbeextended.Keywordsprecipitationmethod,amorphoussilica,oil2absorbedvalue,bulkdensity,sizeofamorphoussilica(SiO2nH2O),,,,,,()[122],,,[3],,,,[425],,,,[6],,,[7],,[829],,,,,,,[10211]1111(Na2OnSiO2),,;(H2SO4),95%98%,;;,9915,112BS423S;02522F;HH22;SHB2A;HG101113135mL(80mL90mL2:100mL110mL120mL),,(115g)60,5min,pH615710,20min,,,90(80859095100),,()15min(10min20min25min30min),pH,pH89,pH34,15min,11411221190ml100mL110mL120mL135mL145mL,,232:(),(),(),,,,,,,SiO2,3,SiO2nH2O,,SiO2,,;,,212,()808590959845;,,9938,,,,,,,,,,,,,,,,,,,,,,,,21310min15min20min25min30min,67,,;,DLVO,,,,,,,,,,,,,,,,,,,3(1),135mL,,,135mL(2),,,,,90,15min,(3):;;,,,,[1],,,.[J].,2003,17(11):56259.[2],,.[M].:,2003,.[3],.[M].:,2003:64.[4],.[J].,2005,37(6):14217.[5](),2006212231.[6]KayaliO,ZhuB.Corrosionperformanceofmediumstrengthandsilicafumehigh2strengthreinforcedconcreteinachloridesolution[J].CementConcreteComposites,2005,(27):1172124.[7]KalkanE,AkbulutS.Thepositiveeffectsofsilicafumeonthepermeability,swellingpressureandcompressivestrengthofnat2uralclayliner[J].EngineeringGeology,2004,(73):1452156.[8],.[J].,2001,(3):62264.[9],.[J].,2004,36(6):46248.[10].[J].,2002,34(1):18220.[11],.[J].,2002,(2):35238.:2009205206:2009206211001