单质硅粉溶解法制备硅溶胶正交实验研究13

Sum134No.11ChemicalEngineer200611:2006-07-25:(1973-),,,,::1002-1124(2006)11-0012-031,2,2(1.,266042;2.,266510):,:7h,80,=1203():;;;:TQ127.2:AStudyonorthogonaldesignofpreparationofsilicasolbydissolvingsiliconpowderTIANLi-peng1,2,WANGLi2(1.QingdaoUniversityofScienceandTechnology,CollegeofChemistryandMolecularEngineering,Qingdao266042,China;2.ShandongUniversityofScienceandTechnology,CollegeofChemistryandEnvironmentEngineering,Qingdao266510,China)Abstract:Thetechnicsofsilicasolpreparationbythesiliconpowderwithwaterglassandammoniacatalystisstudied.Theoptimumconditionsobtainedbyorthogonaldesignasfollows:thereactiontimeis7hours,there2actiontemperatureis80,themassratioofwaterglass,waterandsiliconpowderis1203.Keywords:silicasol;siliconpowder;orthogonaldesign;preparation(ColloidalSilica),,,mSiO2nH2O,,40/[1],,,,,,,,,,,,pH,,,,,,[2-4][5],,,,;,;,,,,,11.1(95%200);(2.4);(A.R.25%);;(200611:);SHZ-D()();PHS-2C();101-2A()1.2,,,,,,1122.1,,:Si+2OH-+H2OSiO2-3+2H2SiO2-3+H2OSiO2+2OH-mSi+(2m+n)H2OmSiO2nH2O+2mH2,,[6]:,SiO2H+OH-,SiO2,:SiOH+2H+SiOHOH-SiO-+H2O,SiO2pH,pH,,,,SiO2pH=2pH2,H+,:SiHOHOOHOH+SiOHHOOH2+OH+2H2OSiOHOHOHOH2HOOHSiOHOH2OH2OH,,pH2,OH-,:SiOHOHHOOH+SiOHOHHOO-SiOHOHOHOSiOHOHOH+OH-SiO2-3,,,H+OH-,SiO2,;,SiO2SiO2,,,,Na+H+,2.2,,,,,:8090,,;68h,;;,;,2.32.3.1,,,,,,,,L9(34)31:200611,11A/hB/mLC/D/mL133.080120254.585150376.0901802.3.222ABCD/%1111121.02122222.73133321.54212322.15223122.66231227.07313226.58321326.893321M165.269.674.843.6M271.772.144.876.2M353.348.570.670.4T=W=190.2Mi121.723.224.921.8Mi223.924.022.425.4Mi326.6524.2523.523.5RJ4.951.02.63.6Y=W/n=23.82,Rj:ADCB,:2Mij(,),M13M23M31M42,,::7h,:80,=1203()3(1),L9(34),;:;::7h,:80,=1203()(2),(27%),(35mPas),[1],.[J].,2005,3(6):27-32.[2],,,.[J].,1998,14(1):16-19.[3],,.SiO2[J].(),2002,30(8):104-106.[4],.[J].,2004,18(3):26-27.[5],,,.[J].,2005,24(8):925-929.[6],.[J].,1956,23:90-99.,,,,,,,,,,::99964602:200435:021-56425244::013585686549:@126.com41