偶聯(lián)劑改性多壁碳納米管-溶聚丁苯橡膠復(fù)合材料性能研究.pdf

1、南京理工大學(xué)碩士學(xué)位論文偶聯(lián)劑改性多壁碳納米管溶聚丁苯橡膠復(fù)合材料性能研究姓名：黃曉敏申請(qǐng)學(xué)位級(jí)別：碩士專業(yè)：高分子化學(xué)與物理指導(dǎo)教師：賈紅兵20090620碩上論文偶聯(lián)劑改性多壁碳納米管／溶聚丁苯橡膠復(fù)合材料性能研究AbstractMultiwalledcarbonnanotubes(MWNTs)exhibituniquemechanical，electronicandmagneticproperties，whichallowthem

2、tobeusedaspossiblereinforcingmaterialsforcompsitesInthispaper，areactionprocedureofHN03oxidationwasappliedtothepurificationofMWNTsThentheacid—reatedMWNTsweremodifiedbymultifunctionalsilane，KH550，KH570andSi69Afterthat，theM

3、WNTs／SSBRcompositeswerepreparedthroughmechanicalmixingonthebasisofmodifiedM、VNTsThecharacteristicofforeand—aRchemicallymodifiedM、VNTswereanalyzedbyFourierTransformInfraredSpectroscopyEnergyDispersiveXrayAnalysis，XrayDiff

4、raction，RamanSpectroscopyandThermoGravimetryAndtheinfluenceofsilanefunctionalizedMWNTsonthemechanicalandthermalpropertiesofⅣnVNTS／SSBRcompsiteswereinvestigatedTheresultsconfirmthechemicalinteractionofsilanewiththeoxidize

5、dnanotubesandsilanehadsuccessfullymodifiedMWNTsComparingtoneatSSBR，themechanicalandthermalpropertiesofMWNTs／SSBRcompsiteshavebeengreatlyimprovedaRertheadditionofMWNTsWhenthecontentofMWNTsis15phritstensilestrengthimproved

6、by34608％，尬Doandhardnesswerereinforcedrespectivelyby9722％and36％，andthethermaldecompositionactivationenergyenhanced8220％ComparingtothecompsitereinforcedbyrawMWNTs，themechanicalpropertiesoftheMWNTs／SSBRcompsitesreinforcedby

7、themodifiedMWNTshavebeenimprovedslightlywhiletheirthermalstabilitieshadnoobviousimprovementDynamicMechanicalAnalysisindicatedthatthestoragemodulusofthenanocompositesincreasedandtheglasstransitiontemperaturesdecreasedafte