硅酸鹽系隔熱涂料的配方設(shè)計(jì)及性能研究.pdf

1、湖南大學(xué)碩士學(xué)位論文硅酸鹽系隔熱涂料的配方設(shè)計(jì)及性能研究姓名：于明濤申請(qǐng)學(xué)位級(jí)別：碩士專業(yè)：材料學(xué)指導(dǎo)教師：萬隆20080425碩士學(xué)位論文IIIAbstractHeatinsulatingcoatingcanbeusedtopreventtransmissionofheatreducethetemperatureofcoatingsurfaceeffectivelyreachesthedestinationofimprovingwki

2、ngenvironmentreducingenergyconsumption.Becauseofitseconomicalefficiencyconvincereliableeffectofthermalinsulatingithasbecomeakindofimptantconstructionenergysavingmaterialgradually.AkindofSilicateheatinsulatingcoatingwasst

3、udiedinthispaperwhichwasenvironmentfriendlyitsprocesstechnologywassimple.Thecoatingscanbebrushedatsurfaceofmetalwallatroomtemperaturehavereliableeffectofheatinsulating.Firstlymodifiedresearchofthesodiumsilicatebindershou

4、ldbedonebecausetheresistencetowatermechanicalpropertyofcoatingisnotwellatroomtemperature.Inganicmodifiedganicmodifiedtosodiumsilicatebinderwereemployed.Modifiedreagentincludedinganicacidsilicasolbinderpolymeremulsionetal

5、.Intheendbettermixtureratiowasobtainedasfollows:sodiumsilicate:styreneacrylicemulsion:inganicacid:sodiummethylsilicate:stabilizingagent=100:20:5:5:1.Nextlyheatinsulatingeffectofseveralcommonheatinsulatingfillingwerestudi

6、edestablishingheatinsulatingfillingunitincludinghollowglassbeadsepiolitefiberthenmodifiedresearchofhollowglassbeadsepiolitefiberwerestudiedinexperiment.Fcenospheretio2solutionwasmadebyliquidphaseprocesssurfaceofcenospher

7、ewascoatedbyimmersionplatinggainedmodificationcenospherewithhighrefractiveindexitwasdetectedthatsurfaceofcenospherewascoatedbytio2filmwhichthicknesswas100nmapproximatelycrystalmodelofthecoatedsubstancehadalreadychangedin

8、torutileaftercalcinationsat850℃.Fsepiolitegrainsizeoffiberwascontrolledbyballmillingwhenratioofgrindingmediatomaterialwas1:1.5thetimeofgrindingwas3hourssizedistributionofsepiolitewasunifmtheaveragesizeofsepiolitewas7.3m.

9、Experimentshowedthatheatinsulatingfillingwithmodifiedcouldgainbetterheatinsulatingeffectincoatingithadimptantsignificancetoimproveheatinsulatingeffectofcoating.LastlyfmulationofcoatingwasinvestigatedbythogonaldesignL9(33

10、)foundthatheatinsulatingeffectaboutsepiolitehollowglassbeadtitaniumdioxideweredescending.Byfurtheringstudiesonthogonalresultswegotthebetterfmulation:modifiedsodiumsilicatebinderis47%hollowglassbeadcontentis12%sepioliteis

11、19%titaniumdioxideis10%talcumpowderis5%kaolinis5%auxiliaryagentis2%.Thenseveralconventionalindexofcoatingweretestedaccdingtorelevantnationalstardsfoundithadbettermechanicalpropertieseffectofthermalinsulating:adhesionofco

12、atingisbetween01impactstrengthisabove50cmthermalinsulatingeffectisimprovedby20℃thangeneralcoating.ManyimptantindicessuchasthicknessviscosityPBheatresistingpropertieswerestudiedanalysedofmechanicsthroughgeneralthermalanal