聚酰亚胺和碳纳米管复合材料的应用.ppt

《聚酰亚胺和碳纳米管复合材料的应用.ppt》由会员上传分享，免费在线阅读，更多相关内容在应用文档-天天文库。

1、TheApplicationofPolyimide/CarbonNanotubeCompositesinElectricalConductivityHeadstormThepropertyofPolyimideandCNTandtheirinitialapplicationThespecificapplicationofPI/CNTcompositesSomeotheruseofPI/CNTcompositesAbstract:ThepropertyofPolyimideandCNTandtheirinitialapplicationTheProperty

2、ofPolyimideandCarobonNanotubecarbonnanotubeHighYoung’smodulusandtensilestrength.Canbemetallicorsemiconductingdependingontheirstructuralparameters.SuperiorthermalstabilityGooddielectricpropertiesGoodchemical&radiationresistanceLowthermalexpansioncoefficientHighstrengthHighflexibili

3、tyPolyimide:Carbonnanotube:TheAdvantageofPolymericNanocompositesTheApplicationofPI/CNTcompositesinAerospaceFutureaerospacevehicleswillrequireasignifi-cantreductionofmass,sizeofcomponents,andpowerrequirements,accompaniedbyanincreaseintheintelligenceofthesecomponents.Singlewallcarbon

4、nanotubes(SWNTs)areattractivefortheseapplicationsbecauseoftheirextraordinarycombinationofthermal,electrical,dielectric,andmechanicalproperties.ThespecificapplicationofPI/CNTcompositesElectrostaticdischarge(ESD)Polyimidesarewidelyusedinapplicationsrangingfrommicroelectronicstoaeros

5、pace.Duetotheirinsulatingnature,significantaccumulationofelectrostaticchargemayresultontheirsurface,causinglocalheatingandprematuredegradationtoelectroniccomponentsorspacestructures.CNTPolyimideElectricalcompositeswithalevelofelectricalconductivitysufficienttopermitelectrostaticdi

6、scharge,aswellasmechanicalandthermalpropertiessuperiortothatofthebasepolymer.Resistive-typehuminitysensorcapacitivetypehumiditysensor:useslesspowerandhasmuchbetterlinearity.Resistivetypehumiditysensor:muchsimplerandmorestraightforwardthancapacitancemeasurementsKum-PyoYoo,Lee-TaekL

7、im,ect.Novelresistive-typehumiditysensorbasedonmultiwallcarbonnanotube/polyimidecompositefilms.SensorsandActuatorsB:Chemical2010,145:120-125.Kum-PyoYoo,Lee-TaekLimdevelopedanovelresistive-typeRHsensorbasedonplasma-treatedmultiwallcarbonnanotube/polyimide(pMWCNT/PI)compositefilms,suc

8、cessfullyovercomethesedrawbacks.T