1. 研究目的与意义（文献综述）
1.researchobjectivesandsignificance（withdomesticandforeignpresentresearchsituationanalysis）
intherecentyears,energyproblemhasbecomeincreasinglyprominentamongalltheissuesaccompanyingthesustained-rapiddevelopmentofeconomyaroundtheworld,whichhasnotonlydrawnpublicconcernbutalsobecomeoneofthehottesttopicsforthescholars.inthefieldofmaterial,weaswellcanplayaparttoreducetheconsumptionofenergyutilizingmaterialwithlowenvironmentalloadsbutidealpropertiessuchaslowthermalconductivitywhichiscriticalforenergyconservationofbuildings.ourtaskistodiscussthepreparationofhighlydispersedsilicaaerogelnanospheresinaqueousphaseunderambientpressureandstudyitsvariouspracticalapplicationsofwhichthebuildingenergyconservationisofgreatimportance.
allthroughtheyears,researchesanddevelopmentactivitiesofnanotechnologyhavebeenonaexponentialgrowthwhichismakingasignificantimpactonscience,engineeringandcommercialsectors.howevertheapplicationofnanotechnologyinconstructionindustryisnotthatofprioritycomparedtothebiomedicalindustryorelectronicindustry.recently,nanotechnologyisbeginningtobeappliedinconstructionindustrytoadvanceconventionalbuildingmaterialandithasbeenrevealedthattheapplicationofnanotechnologycanendowthemwithnewanduniquepropertiesaswellasimprovingvitalcharacteristicssuchasstrengthanddurability.silicaaerogel,towhichmuchattentionispaidamongnanomaterials,isalsotheemphasisofourresearch.slicaaerogelsareananoporoustranslucentmaterialwithhighspecificsurfaceareaandlowdensity,itslowthermalconductivitycomparededtootherknownthermalinsulationmaterialmakesitaperfectinsulator,anditshighlydispersityinwatermakesitpossibletobemixedinbuildingpaint,thustheuniquepropertiesaltogethercanmakeaperfectenergy-conservatingbuildingmaterial.
2. 研究的基本内容与方案
2.basiccontents,objectives,technicalplansoftheresearch
basiccontents：adoptthestbermethodtopreparemonodispersenanosphere,utilizesurfactanttoconductgraftingmodification,andthenconducthydrophobemodification,drythenanospheresunderambientpressure.characterizeitsappearanceandmicrosizebyxrdandfesem,measureitsdipersitywithmalvernpaticlesizer.
objective:preparehighlywaterphasedispersedsilicaaerogel,syntheticallyevaluateitsdispersioninwaterphase,characterizeitsthermalconductivity.
3. 研究计划与安排
3.schedule：
1st-3rdweek：consultrelatedliteratureanddata,completthetranslationoftheassignedenglishpaper,specifytheresearchcontent,confirmtherawmaterialsandtherequiredinstrumentsandequipment.definethetechnicalplans,finishthethesisproposal.
4. 参考文献（12篇以上）
[1]taogao,bjrnpetterjelle,linningunnc.sandberg,andarildgustavsen.monodispersehollowsilicananospheresfornanoinsulationmaterials:synthesis,characterization,andlifecycleassessment.acs2013.1.30
[2]marinan.gorsd*,luisr.pizzio,mirtan.blanco.synthesisandcharacterizationofhollowsilicaspheresinternationalcongressofscienceandtechnologyofmetallurgyandmaterials,sam-conamet2013
[3]yujiaoli,bozou,xiaofengwang,zichenwang.preparationofporoussilicasphereswithself-dispersingproperties.sciencedirect20131.7
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