高度分散納米氧化物-聚合物復(fù)合材料制備方法的探索性研究.pdf

1、浙江理工大學(xué)碩士學(xué)位論文高度分散納米氧化物聚合物復(fù)合材料制備方法的探索性研究姓名：婁淵華申請(qǐng)學(xué)位級(jí)別：碩士專業(yè)：應(yīng)用化學(xué)指導(dǎo)教師：王新平20081224浙江理工大學(xué)碩士學(xué)位論文ABSTRACTInrecentyears，nanocompositeshaveattractedmoreandmoreattentionowningtotheirspecialmechanical，opticalandmagneticproperties，ith

2、asbecometheoneofthemostpopularresearchtopicofthematerialsfieldTheperformanceofpolymerbasednanocompositeWasnotonlyrelatedtotheindividualnatureofnanoparticleandpolymerbutalsototheinterfacialstructureTheinfluenceoftheinterr

3、acialstructureontheperformanceismoreimportantinthenanocomposite麗mllighsurfaceareaSincethenanoparticlescouldaggregativeeasilyowningtotheirhighsurfaceenergywhentheyaremixedwithpolymerwhichinfluencetheimprovementoftheproper

4、tiesofpolymerTherefore，itisnecessarytomodifythenanoparticlesandmixthenanoparticleswithpolymersimplybythedispersiontechniqueofsolutionforpreparingthenanocomposite、Ⅳim11ighperformanceThisisalsomeaningfultoimprovethenanocom

5、positepropertiesandachievethelarge—scaleproductionofhighperformancenanocompositeInthispaperthesurfacecarboxylatedllanoTi02andnanoSi02wereobtainedfromdifferentmethods，suchaS，byreacting—oHgroupsonnano—面02witllCICH2COOH，pol

6、y(acrylicacid)wasusedtomodifythenanoTi02bythe“graftingto’methodandbythepolymerizationofacrylicacidonnanoparticlesurfacethroughthe“graftingfrom”methodThestructureandcompositionofthecarboxylatednanoparticlesurfacewerechara

7、cterizedbyFTIRXPSandTGAThen，poly(vinylalcoh01)orchitosanchainsfunctionedasatemplateduringmixingthecarboxylatednanoparticles謝tllaqueouspolymersolutionItWasexpectedthatthenanoparticle／polymernanocomposites、橢mbetterdispersi

8、onofnanoparticleandmoreexcellentperformancecouldbeobtainedthroughthestronginteractionbetweenCOOHonthenanoparticlesurfaceand旬HonthePVAchainsor4哪2onthechitosanchains，atthesametime，thestronginteractionbetweenthenanoparticle

9、andmatrixWasalsoexpectedtoobtainThedispersionofcarboxylatednanoparticlesinthepolymermatrixwereinvestigatedbyDLS，TEMandSEMAndthemechanicalandthermalpropertiesofnanocompositeswereinvestigatedbytensiletesterDMAandTGATheresu