改性石墨烯与环氧和聚醚酰亚胺复合材料的制备与性能分析-(5882)

《改性石墨烯与环氧和聚醚酰亚胺复合材料的制备与性能分析-(5882)》由会员上传分享，免费在线阅读，更多相关内容在行业资料-天天文库。

1、万方数据摘要第五章为全文总结。我们研究工作的主要对象为改性石墨烯与环氧以及聚醚酰亚胺的复合材料。通过对石墨烯进行化学修饰改性，提高其在环氧或者聚醚酰亚胺中的分散性和相容性；接着将得到的改性石墨烯作为填料分别加入到环氧，聚醚酰亚胺二元体系、聚醚酰亚胺薄膜以及环氧当中，发现制备得到的复合材料的相关性能均得到了提高，特别是机械性能和热学性能。本文的实验结果表明，改性石墨烯对环氧及聚醚酰亚胺的改性具有很重要的意义以及良好的应用前景。关键字：改性氧化石墨烯，环氧树脂，聚醚酰亚胺，复合材料中图分类号：0631复旦大学硕士学位论文万方数据摘要Preparationand

2、CharacterizationofModified—GrapheneOxidebasedEpoxyandPolyetherimideCompositesAbstractEpoxyresinisakindofthermosettingpolymerswithexcellentchemicalandcorrosionresistance，outstandingadhesionproperties，gooddimensionalstabilityandlowprice．It’Susedinmanyindustrialfields，suchasaerospace

3、，automotive，electrondevicese／c．However,usuallyepoxyisbrittleanditslowimpactresistancegreatlylimitsitsapplication．Polyetherimide，akindofthermoplasticpolymers，hasexcellentproperties，suchasflexibility,highglasstransitiontemperature，superiormechanicalpropertiesetc．Introductionoftherma

4、lplasticpolymers(eg．Polyetherimide)intotheepoxyresinisagoodroughingmethodtoovercomethisweakness．Thecurereactionwillinducethephaseseparationoftheepoxy／thermalplastic(EP／TP)polymerbinarysystem．AddinginorganicfillersintotheEP／TPbinarysystemcannotonlycontroltheproceedingofphaseseparat

5、ion,butalsoCansignificantlyenhancethepropertiesoftheresultingcomposites’Grapheneisatwo—dimensionalsinglelayerofsp2-bondedcarbons．Itiswidelyconcernedinrecentyearsbecauseofitssuperiorpropertiessuchasthelargetheoreticalspecificsurfacearea,extraordinarymechanicalproperty,exceptionalel

6、ectronic，thermalconductivityetc．What’Smore，grapheneisakindoflowcostcarbonnanofillerforitCanheeasilyproducedinlargequantitiesfi'omgraphite，aprecursorwhichwidelyexistsinnature．Inconsiderationofitsexcellentpropertiesmentionedabove，graphene—basednanofillerhasthepotentialapplicationint

7、hepreparationofhigh-performancepolymercomposites．InOurthesis，modifiedgrapheneoxideWasaddedintoEP厂rPbinarysystemtostudyitseffectonthephaseseparationbehavioranditsreinforcementoftheresultingcomposites．Moreover，modifiedgrapheneoxide／polyetherimidecompositefilmsandmodifiedgrapheneoxid

8、e／epoxycompositeswerepreparedandt