超細氧化鉍的制備及其在涂料中的防輻射性能研究.pdf

1、西南科技大學碩士學位論文超細氧化鉍的制備及其在涂料中的防輻射性能研究姓名：劉芳芳申請學位級別：碩士專業(yè)：無機化學指導教師：戴亞堂20110608西南科技大學碩士研究生學位論文第1I頁AbstractBi(C103)3andNaOHaSrawmaterials，Bi203wassynthesizedinthegropingexperiemsbydirectprecipitationmethodAccordingtomeresultsoft

2、hetest，weacquiredthebestpar鋤etersofexperience：Bi(C103)3concentrationis05mol／L，theconcentrationofNaOHsolutionwas1mol／L，thereactiontimeis4h，thereactiontemperatureis40℃，n(NaOH)：n【Bi(C104)3】=1：4WecanobtainclaValandsmallsizea

3、ndgooddispersingbismuthoxideusingthesepa“unetersofexperienceUndertheoptimumconditions，byaddingandcontrollingtheamountofadditiVeswecaJlprepareddifferentshapesalldsizesofbismuthoxide，theresultsindicatedthatspindlenallomete

4、rbismuthoxidepowderwasobtainedandthemeansizeof90nmwhentheconcentrationoftaIrt撕cacidwaS8％WhentheadditiVewaspolyethylene91ycoloctylphenylether，wedidexperimentthes鋤eway鋤dobtaindebismuthoxidewithmeansizeof200nmSodiumbentonit

5、eisoRenusedasantisettlingagentofpaint，butnaturalbentoniteisusuallycalciumbentonitewhicheasilyformaggregatesinthecoatingandcan’tgetidealeffectSothisthesiscarriedontheStudyofsodiummodification，calciumbentoniteasrawmaterial

6、s，NaFaSmodifier，expansioncapacityasastandardTheresearchersthroughalotexperimems，preparedsodiumbentonitehaVingexpansioncapacityof95mL儋Thepropertiesof丫一rayabso印tionintheinteriorwallpaintoftheBi203withready—prepa他dsodiumben

7、tonitewerepreparatorilyinVeStigatedTheresearchon7rayabso印tionsho、Ⅳedthat：byaddingfortypercemofbismuthoxideinwaterbomeemulsion，theabsorptionofthe241Am丫rayssourceswasthestrongest，basicpropertiesofpaintwasthebestIfwewantthe