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Thermal Properties of Boron Nitride Nanoplatelets/Epoxy Composites  
Thermal Properties of Boron Nitride Nanoplatelets/Epoxy Composites
资料类型: PDF文件
关键词: interface  composites  boron  nitride  thermal  property  
资料大小: 106K
所属学科: 分子表征
来源: 第六届亚欧研讨会上处理和性能增强聚合物会议文集(2013.6.2-6 武汉)
简介:
Inthisstudy,wereportasimplemethodtofabricateboronnitride(BN)nanoplateletsbyusingasonication-centrifugationtechnique.Thegoalofthispaperistopresentasystematicstudyfortheeffectofinterfaceonthemorphologyandthermalpropertiesofpolymercomposites.Epoxyresinwaschosenasthematrixbecauseofitsextremelywideapplicationinaerospace,automotiveandelectronicindustriescl-3].WefabricatedaseriesofepoxycompositesbyusingdifferentsurfacefunctionlizationofBNnanoplatelets:(i)covalentfunctionlization.TheBNnanoplateletswerefirstlytreatedwithasilanecouplingagenttointroduceaminegroups,thengraftedofthehyperbranchedaromaticpolyamide(HBP)startedfromthemodifiedsurface.Thestrongcovalentbondingformationproducedastronginterfacebetweennanoplateletsandmatrix.(2)non-covalentfunctionlization.TheBNnanoplateletswerefunctionalizedbyoctadecylamine(ODA)molecules.TheODAmoleculesonthesurfaceofnanoplateletsphysicallyentanglewiththematrixmoleculesresultingintheintermediateinterfaceinteractionbetweennanoplateletsandmatrix.Finally,theepoxycompositeswithBNnanoplateletswerealsopreparedasacomparativeresearch.TheinterfaceinteractionmadebyBNnanoplateletswasweakbecauseofneitherchemicalreactionnorphysicalmolecularentanglement.Throughthiswork,anunderstandingoftheinterfaceeffectonthermalpropertiesofepoxycompositesisobtained.
作者: J. H. Yu, S. R. Lu
上传时间: 2013-07-02 13:55:58
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