超細(xì)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(xué)碩士學(xué)位論文超細(xì)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(qǐng)學(xué)位級(jí)別：碩士專(zhuān)業(yè)：無(wú)機(jī)化學(xué)指導(dǎo)教師：戴亞堂20110608西南科技大學(xué)碩士研究生學(xué)位論文第1I頁(yè)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