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1、301=vVol130 No112 0 0 7M3JournalofChangchunUniversity ofScience andTechnology Mar. 2 0 0 7l: 2006- 06- 12:SSELi( J96032GY)Te:)(1956 - ),o,q;1VYST, E- mai:l zjw1095 sina1 comYT:Td(1944- ),3,pV3=;VYs#$ST, E- mai:l zhuguoyi ciac1 jl1cnAZ高秀霞1, 张伟娜1, 任敏2, 朱果逸2(11=v ,= 13002221SS= sSELi,= 130022)K 1: 目前硅气
2、凝胶是世界上最轻a隔热性最好a孔隙率较高且声传播速率较低的固体材料, 由于其特殊的网络结构使其具有很多独特的性能b本文从其研究历史及现状出发, 对其性能以及在不同方面的应用和制备原理进行了综述, 并对其广阔的发展前景进行了展望b1oM: 硅气凝胶; 溶胶-凝胶法; 超临界干燥技术ms|: TQ171177 DSM: AcI|: 1672- 9870 (2007) 01- 0086- 06Progress in the Study of Silica AerogelsGAO Xiuxia1, ZHANGWeina1, RENMin2, ZHU Guoyi2(11School of chemist
3、ry and EnvironmentalEngineering, Changchun University of Science and Technology, Chang chun 130022;21StateKey Laboratory of ElectroanalyticalChemistry, Changchun Institute of Applied Chemistry, ChineseAcademy of Sciences, Changchun 130022)Abstract: Presently, silicaaerogelsarethe lightestsolidmateri
4、alwhich havethebestproperty in thermalinsulation andhave thehigher porosity, the lower sound velocities in theworld. Thesilicaaerogelshavemanyuniquepropertiesowing to their specialstructure. Thispaperbegan from thehistory and the studynowadaysofsilicaaerogels, then theirproperties, their application
5、 in differentaspects and their preparedprinciplewere summarized and theirprospectofdevelopmenthad been proposed.Key words: silica aerogels; sol- gelmethod; supercriticaldrying technologyABs8,80s0MB,d%*,%8Md#(,)by+P5VCzNbAW1931M 1,n5vS. S. Kistler=Ab1966MJ. B. Per.i 2AB-E!A,V7P,BwZb1974M0ECantin3nQ|1
6、700610006ACerenkovbN,AT34b1985MTewari5P=2,A2,wAl017W# m2# K-1,i;qr76%b9A3,%59ibyNA2(SupercriticalDr-ying)P2(V1Bt2)Hq(),Eh2V4Vfi78vl7,V7bV1 Bt2Tab11 Criticalparameterof some dryingmedium2m(e )(e ) pH(g# cm- 3 )=- 7815 3111 7219 01468J?6416 23914 7919 01272Y?7813 24310 6310 01276d?9712 26315 5110 0127
7、510010 37411 21716 01322J- 16410 - 8310 4160 01160Y- 10317 915 5107 012003 ZS/?Z?,BMpLaza?a?21W,TWK%8) )A,+y,|.Z J., 2003, 09: 11- 15.23Gross J, Fricke J. Proceedings of the Third InternationalSymposium onAerogels ( ISA 3) J. Non- Cryst. So-lids, 1992, 145: 217.24 Gross J, Zimmermann, A Fricke J. Pr
8、oceedings of theFourth InternationalSymposium onAerogels( ISA 4) J.Non- Cryst. Solids, 1995, 186: 238.25LawrenceW, Hrubesh. Aerogelapplications J. JournalofNon- CrystallineSolids, 1998, 225: 335- 342.26TsouP. ProceedingsoftheFourth InternationalSymposiumonAerogels ( ISA 4) J. Non- Cryst. Solids, 199
9、5,186: 415.27HrubeshLW. Proceedingsof the Fifth InternationalSym-posium on Aerogels ( ISA 5) J. Non- Cryst. Solids1998, 225: 335.28Einasrud, DahleM A, LimaM, et a.l Proceedings of theFourth InternationalSymposium onAerogels( ISA 4) J.Non- Cryst. Solids, 1995, 186: 96.29HrubeshLW. Proceedings of theF
10、ifth InternationalSym-posium onAerogels ( ISA 5) J. Non- Cryst. Solids,1998, 225: 335.30HolmesN C, RadouskyH B,MossM J, et a.l Silica atu-ltrahigh temperature and enpanded volumeJ.App.l Phys.Lett., 1984, 45(6): 626- 628.31 PeterAmenlt, Glendinning S G, HammelBA, et a.l Nowmethods for diagnesing and
11、controlling hohlraum drive a-symmetry onNovaJ. Phys. Plasmas, 1997, 4(5): 1862-1871.32PajonkGM, TeichnerS J. InAerogels: proceedings of thefirst international symposium R. Fricke J Ed Berlin:SpringerVerlag, 1986, 193.33 Zoran Novak, Petra Kotnik, Zeljko Knez. Preparation ofWO3 aerogelcatalystsusing
12、supercriticalCO2 drying J.JournalofNon- CrystallineSolids, 2004, 350: 308- 313.34 ISmirnova, Jmamic,W Arlt. AdsorptionofDrugson SilicaAerogelsJ. Langmuir, 2003, 19: 8521.35Buisson P, HernandezC, PierreM, et a.lAerogels: Pro-ceedings ofthe Sixth InternationalSymposium onAerogels(ISA6) J.Non- Cryst. Solids, 2000, 10: 8- 11.36Reynes J, Woignier T, Phalippou J, et a.l In Proc. of thefifthMeeting onSupercriticalFluids( I. S. A. S.
