How Do Carbon Nanotube Fibers Gain Their Strength，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）-中国聚合物网,论文下载

How Do Carbon Nanotube Fibers Gain Their Strength

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carbon nanotube fibers strength acterization modeling optimization

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所属学科：

分子表征

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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：

Thepotentialoftranslatingthesuperbmechanicalandphysicalpropertiesofindividualcarbonnanotubes(CNTs)fromthenano-scaletothemacro-scaleofcontinuousfibersisfascinatingandhasdrivenconsiderableresearchinterestinthepastdecadecl,2].Fromtheviewpointofreinforcementsforfibercomposites,thepotentialofusingCNTsinacontinuousformwouldenabletheiradaptationtomanywell-developedcompositesprocessing,characterizationandmicromechanicsmethodologies.EventhoughveryhighstrengthsandmoduliforCNTfiberhavebeenreportedintheliterature,theprocessingofhighperformanceCNTfiberswithconsistent,reproduciblequalityhasstilleludedourreach.Thispresentationisintendedtointroduceouron-goingresearch,theaimsofwhicharetwo-fold.First,aconcertedefforthasbeenmadetoassessthestatusofCNTfibertechnologybyexaminingfibersfromvarioussourcesbasedondifferentprocessingmethods.Researchresultsincharacterizingthetensile,compressive,torsion,aswellaselectromechanicalbehaviorsofCNTfiberswillbereportedc3-5].Throughourcharacterizationstudies,amorecomprehensiveknowledge-baseofCNTfiberhasemerged.Thisresearchhasfueledthequestion,"HowdoCNTfibersgaintheirstrength?".Therefore,oursecondinitiativeisfocusedonidentifyingkeycontributingfactorsaffectingthemechanicalpropertiesofCNTfibers.Preliminaryresearchresultsinmodelingtheinfluenceofthesefactors,suchasCNTlength,CNTentanglement,intertubeinteractions,aswellasfibertwistangle,willbereported.ThecombinedexperimentalandanalyticaleffortaimstoidentifytheoptimaldesignofCNTfibersforhighperformancecompositeapplicationsc6].

作者：

T. W. Chou

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2013-06-21 11:44:08

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