空间探测用耐高温二氧化硅气凝胶复合材料制备与应用
Abstract
Si02materialhasthecharacteristicsofandSO
aerogelhighporosity，lowdensityon，
itakindofandefficientthermalcontrol
makinglightmaterial．However，at
present，the
resistanceofsilicamaterialisleadstotheand
temperatureaerogelonly800C，whichshrinkage
ofnanostructuresattheheatinsulation
collapsehightemperature，greatlyreducingperformance，
andtheandlifeofonthe
seriouslyaffectingworkingefficiencyworkingpowersupply．Based
abovediscussestheof1
resistant(100℃)
problems，thispaperpreparationhightemperature
andthecustomizationofnanothe
aerogelaerogelmaterials，throughsize，reduce
composite
ofsiliconordertoensureitsexcellentresistanceatthe
shrinkageparticles，inhigh
temperature
sameexcellentthermalinsulationreinforcementto
time，hasperformance，andbyadding
themechanicalandresistance
of
improvepropertieshightemperatureaerogel．
onofresistant
si02
(1)Researchsol-geltechnologyhightemperatureaerogel
Toselectsuitablesiliconistohavesuitablecan
source，it
necessarygelconditions，which
formnanoscalenet