Morphological, Mechanical and Thermal Properties of Poly(lactic acid)(PLA)/Cellulose Nanofibrils(CNF) Composites Nanofiber for Tissue Engineering-中国期刊网

摘要 Compositenanofibermembranesbasedonbiodegradablepoly(lacticacid)(PLA)andcellulosenanofibrils(CNF)wereproducedviaelectrospinning.TheinfluenceofCNFcontentonthemorphology,thermalproperties,andmechanicalpropertiesofPLA/CNFcompositenanofibermembraneswerecharacterizedbyfieldscanningelectronmicroscopy(FE-SEM),differentialscanningcalorimetry(DSC),thermogravimetricanalysis(TGA),anddynamicmechanicalanalysis(DMA),respectively.TheresultsshowthatthePLA/CNFcompositenanofiberswithsmooth,free-beadsurfacecanbesuccessfullyfabricatedwithvariousCNFcontents.TheintroductionofCNFisaneffectiveapproachtoimprovethecrystallineability,thermalstabilityandmechanicalpropertiesforPLA/CNFcompositefibers.TheYoung’smoduliandtensilestrengthofthePLA/CNFcompositenanofiberreach106.6MPaand2.7MPawhentheCNFcontentis3%,respectively,whichareonetimeshigherand1.5timesthanthoseofpurePLAnanofiber.Additionally,thewatercontactangleofPLA/CNFcompositenanofibermembranesdecreaseswiththeincreaseoftheCNFloading,resultingintheenhancementoftheirhydrophilicity.

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Morphological, Mechanical and Thermal Properties of Poly(lactic acid)(PLA)/Cellulose Nanofibrils(CNF) Composites Nanofiber for Tissue Engineering

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Morphological, Mechanical and Thermal Properties of Poly(lactic acid)(PLA)/Cellulose Nanofibrils(CNF) Composites Nanofiber for Tissue Engineering

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