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再生涤纶超短纤维的保温性能研究 Title:AStudyontheThermalInsulationPerformanceofRegeneratedPolyesterShortFibers Introduction: Withtheincreasingdemandforsustainableandeco-friendlymaterials,regeneratedpolyestershortfibersmadefromrecycledpolyethyleneterephthalate(PET)havegainedsignificantattentioninthetextileindustry.Thesefibers,commonlyknownasrecycledPETorrPETfibers,offeraviablesolutiontoreducewasteandcarbonfootprintwhilemaintainingdesirabletextileproperties.Thisstudyaimstoinvestigatethethermalinsulationperformanceofregeneratedpolyestershortfibers,specificallyfocusingontheirapplicationinthetextileindustryforinsulatingmaterialsandclothing. 1.Methodology: 1.1SamplePreparation:RecycledPETfibersampleswereobtainedfromalocalrecyclingfacility.Thesefiberswerethenprocessedintoshortfibersofapredeterminedlength. 1.2CharacterizationTechniques:Thethermalinsulationpropertiesoftheshortfiberswereevaluatedusingvarioustechniquessuchasthermalconductivitymeasurements,thermalresistanceanalysis,andinfraredimaging. 1.3ComparisonwithConventionalFibers:Thethermalinsulationperformanceoftheregeneratedpolyestershortfiberswascomparedwithconventionalsyntheticfiberscommonlyusedinthetextileindustry. 2.ResultsandDiscussion: 2.1ThermalConductivityAnalysis:Thethermalconductivityoftheregeneratedpolyestershortfiberswasdeterminedusingathermalconductivitymeasurementapparatus.TheresultsshowedthatthethermalconductivityofrPETfiberswaslowerthanthatofconventionalsyntheticfibers,indicatingtheirbetterinsulationproperties. 2.2ThermalResistanceAnalysis:Thethermalresistanceoftheregeneratedpolyestershortfiberswascalculatedusingthemeasuredthermalconductivityvalues.TheresultsrevealedthatrPETfibershadhigherthermalresistancecomparedtoconventionalsyntheticfibers,suggestingtheirsuperiorinsulationpotential. 2.3InfraredImaging:InfraredimagingwasemployedtovisualizeandcomparetheheatdistributionacrossthesurfaceofsamplescontainingrPETfibersandconventionalsyntheticfibers.TheimagesdemonstratedthattherPETfiber-containingsampleshadamoreuniformheatdi