奈米碳管之昭和电工- VGCF Series

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1、INTRODUCTIONCarbonNanotubes(CNTs)CNTsisatube-shapedmaterialmadeofcarbon.IthaspropertiesofElectricalConductivity,ThermalConductivity,MechanicalReinforcementandEnergyStorage.CNTshaveproventobeanexcellentadditivetoplasticswithlowerloadingcomparedtoalternativesuchascarbonblackandcarbonfiber.CNTshelptoim

2、proveelectricalconductivity,thermalconductivity,mechanicalstrength,Stiffnessandtoughnessofplasticsandcomposites.1SHOWADENKOVGCFSERIESBulkThermalElectricalGradeDiameterLengthDensityConductivityConductivitynmμmg/cm3W/(m/k)Ω/cmVGCF®15080.04120010-4VGCF®-H15060.081200TM10-4TheRepresentativePropertiesofV

3、GCFVGCF®-X1530.08-VGCF®,VGCF®-H(ThermalConductivity)MainUse:LithiumIonBatteryResinComposite,RubberCompositeVGCF®-X(ElectricalConductivity)MainUse:ResinComposite,RubberCompositeVGCF®VGCF®-XVGCF=VaporGrownCarbonFiberASEMimage(×20K)2ADVANTAGES(1)1.LowLoading,LowCost,LowRiskofContamination1.1Highaspectr

4、atioofVGCF-X,bylowloading2-3wt%intoPCcangiveSurfaceResistivity1E+06Ω/sqcomparedtoCarbonBlack16wt%andCarbonFiber12-15wt%.1.2LowloadingcanpreservebaseresinphysicalpropertiessuchasTensileElongation,NotchedIzodImpact.1.3LowloadingandsmallsizeofVGCF-Xgivesmootherqualitypartsurface.1.4Lowloadingandsmallsi

5、zecanreducepartwarpage,minimizeunbalancedpartstrengthandunbalancedpartconductivity.1.5Lowloadingdonotraisetheviscosity.Thinwalled,complexpartorlargepartwillbeeasiertoprocessforagoodshapeanddimensions.3ADVANTAGES(2)2.Cleanliness:2.1LiquidParticleCount(LPC)Onemethodformeasuringsurfacecleanlinessorresi

6、stanceofsloughingisLiquidParticleCount(LPC)test.VGCF-Xprovelessnumberofparticleswhencomparedwithcarbonfiberorcarbonblack(refertopage13).2.2ImprovedAbrasionResistance(WearResistance).AbrasioncausedbytwosurfacesslidingtogethermayleadtosloughingofParticlesthatcancontaminatecleanroomcomponents.Page15-16

7、indicatesthedepthofabrasionbetweenVGCF-XandCarbonFiber.2.3LowOutgassingVGCF-Xitselfconsideraverylowoutgassing.Whencompoundwithplastic,Totaloutgassingisverylow.ThismeanthatVGCF-Xcompositeswillhavealowe