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熔喷用聚丙烯与电气石填充聚丙烯切片的流变行为研究（英文）.docx

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熔喷用聚丙烯与电气石填充聚丙烯切片的流变行为研究（英文） Title:RheologicalBehaviorofPolypropyleneforMeltblownandPolypropylene/ElectretFillerCompositeFilms Abstract: Polypropylene(PP)isacommonlyusedmaterialformeltblownfilmsduetoitsdesirablepropertiessuchaslowdensity,goodthermalstability,andexcellentprocessability.Additionally,theincorporationofelectretfillers,suchaselectricallyconductiveminerals,canfurtherenhancetheperformanceofthepolypropylenefilmsinvariousapplications.Thisstudyaimstoinvestigatetherheologicalbehaviorofpolypropyleneformeltblownfilmsandpolypropylene/electretfillercompositefilms. Introduction: Thegrowingdemandforhigh-performancefiltrationmaterialshasledtothedevelopmentofmeltblowntechnologiesusingpolypropyleneasthebasematerial.TheuniquepropertiesofPP,suchasitsfinefibersandlargesurfacearea,makeitanidealchoiceforapplicationssuchasairandliquidfiltration.However,theadditionofelectretfillerscanenhancethefiltrationefficiencybycreatingapermanentelectrostaticchargeonthesurfaceofthefilm.Understandingtherheologicalbehaviorofthesematerialsiscrucialforoptimizingthefilm-formingprocessandperformance. ExperimentalMethods: Inthisstudy,polypropylenegranulesweremeltedandextrudedtoformmeltblownfilms.Therheologicalbehaviorofthemoltenpolypropylenewasevaluatedusingarheometerunderdifferentprocessingconditions,includingtemperature,shearrate,andfillerloading.Toinvestigatetheeffectofelectretfillersonrheologicalbehavior,polypropylenefilmswithdifferentloadingsofelectricallyconductivemineralswerepreparedandtestedaccordingly. ResultsandDiscussion: Theresultsindicatedthattherheologicalbehaviorofpolypropyleneformeltblownfilmswasinfluencedbyprocessparameterssuchastemperatureandshearrate.Withanincreaseintemperature,themeltviscosityofpolypropylenedecreased,indicatingimprovedprocessability.Similarly,astheshearrateincreased,themeltviscositydecreased,indicatinglowerresistancetoflow.Furthermore,theadditionofelectretfillerstothepolypropylenematrixaffectedtherheologicalbehavior.Thepresenceoffillersledtoanincreaseinmeltvi