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1、*********************************************ContinuousFiberReinforcedThermoplastic Composites(CFRT)GavinZhang2013SFT:Shortfiberreinforcedthermoplasticmaterials.Choppedglassfibercompoundedintothepolymermatrix.LFT:Granularthermoplasticmaterialsproducedinaprocesswherereinforcingfiberlengthequalsgranu
2、lelength.CFRT:Continuousfiberreinforcedthermoplasticmaterials1.IntroductionofCFRTEffectoffiberlengthonmechanicalpropertiesofglassfiberreinforcedPA66PropertyPA66(GF:0%)SFT-PA66(GF:50%)LFT-PA66(GF:50%)CFRT-PA66(GF:50%)Tensilestrength(MPa)70192254400Tensilemodulus(GPa)2.81821.8Flexuralstrength(MPa)100
3、295405590Flexuralmodulus(GPa)2.411.41722.8AdvantagesofCFRT1.Highstrength(Takeadvantageofthefullstrengthofthereinforcingfibers)2.Highimpactresistance3.Lightweight4.Recyclable5.Resistanttorot,corrosionandmildew6.DesignFlexibilityApplicationsMarketingfuture“Themarketforcontinuousfiberreinforcedthermop
4、lasticcompositeshasexperiencedexceptionalgrowthinrecentyearswithaglobalgrowthrateof105%inlast5years.Thegrowthratein2002was93%.”“Historically,continuousfiberreinforcedthermoplasticcompositeswereusedinnicheapplicationsinaerospaceanddefensemarket.Butinrecentyears,themarkethasexplodedinautomotive,sport
5、ing,transportation,industrialandotherapplications.Demandhasbeendrivenbyavarietyofaerospace,automotiveandtruckapplications.“ReportInformationOpportunitiesinContinuousFiberReinforcedThermoplasticComposites2003-2008RawmaterialsBroadpossibilitiesMeltimpregnationComminglingPowderimpregnationCo-weavingSo
6、lventimpregnationInsitupolymerization2.Impregnationmethods2.1MeltimpregnationUSpatent5,529,652;USpatent6,251,206b11.extruder2.casing3.rotaryscrew4.heater5.crosshead6.fiberbundle7.cavity8.inletunit9.resinchamber10.outletnozzleunit11.mainbody12overflowopening13.moltenresin14.guideroller15.impregnatio
7、nroller16.heater17.ajustableheater18.coolingunit19.windingunit20.guideroller21.waterpanAdvantages:highproductionefficiencyeasytorealizedisadvantages:thermaldegradationhardtogetfullimpregnation2.2Commingling
