表面结构化PETPA 6共混纤维的制备及性能研究（英文）-豆柴文库

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表面结构化PETPA6共混纤维的制备及性能研究（英文）
PreparationandPerformanceStudyofSurfaceStructuredPETPA6BlendFibers
Abstract:
Blendfibersarecommonlyusedinthetextileindustryduetotheirenhancedpropertiescomparedtosinglefibermaterials.Inthisstudy,surfacestructuredblendfibersofpolyethyleneterephthalate(PET)andpolyamide6(PA6)werepreparedusingameltblendingprocess.Theeffectsofblendingratioandprocessingconditionsonthemorphology,mechanicalproperties,andthermalstabilityoftheblendfiberswereinvestigated.TheresultsshowedthattheintroductionofPA6intothePETmatrixsignificantlyaffectedthepropertiesoftheblendfibers.
Introduction:
Blendfibersofferacombinationofpropertiesfromtheconstituentmaterials,makingthemhighlydesirableforvariousapplications.Thesurfacestructuringofblendfiberscanfurtherimprovetheirperformancebyenhancingtheirmechanicalandthermalproperties.Inthisstudy,PETandPA6werechosenastheblendcomponentsduetotheircompatibilityandcomplementaryproperties.PETiswell-knownforitsexcellentmechanicalstrengthandchemicalresistance,whilePA6exhibitssuperiorthermalstabilityandmoistureabsorption.Byblendingthesetwomaterials,itisexpectedtocreateafiberwithimprovedoverallperformance.
ExperimentalProcedure:
PETandPA6weremeltblendedatdifferentblendingratiosusingatwin-screwextruder.Theextrudedmeltwasthenspunintofibersthroughameltspinningprocess.Thefibersweresubsequentlydrawn,annealed,andpost-treatedtoimprovetheirmechanicalstrengthandthermalstability.Theobtainedfiberswerecharacterizedusingscanningelectronmicroscopy(SEM),Fourier-transforminfraredspectroscopy(FTIR),differentialscanningcalorimetry(DSC),andtensiletesting.
ResultsandDiscussion:
TheSEMimagesrevealedthattheblendfibersexhibitedauniformandsmoothsurface,indicatinggoodcompatibilitybetweenPETandPA6.Theblendingratiohadasignificantinfluenceonthefibermorphology,asthesizeanddistributionofthesurfacestructuresvariedwithdifferentratios.FTIRanalysisconfirmedthepresenceofbothPETandPA6intheblendfibers,suggestingsuccessfulblending.
Themechanicalpropertiesoftheblendfiberswereevaluat