PCPMMA反应性共混及其在超临界CO2中的发泡研究

PCPMMA反应性共混及其在超临界CO2中的发泡研究Title: PCPMMA Reactive Blends and Their Foamability in Supercritical CO2:

PCPMMACO2 反应性共混及其在超临界中的发泡 研究 Title:PCPMMAReactiveBlendsandTheirFoamabilityin SupercriticalCO2:AResearchStudy Abstract: Polymercompositesandblendshavegainedsignificant attentioninrecentyearsduetotheiruniquepropertiesand potentialapplicationsinvariousfields,includingpackaging, automotive,andaerospace.Thisstudyfocusesoninvestigating thereactiveblendsofpolycarbonate(PC)andpolymethyl methacrylate(PMMA)andtheirfoamabilityinsupercriticalcarbon dioxide(CO2).Theaimofthisresearchistoexplorethe foamabilityofPCPMMAreactiveblendsinasustainable, environmentallyfriendlymanner. Introduction: ThecombinationofPCandPMMAinreactiveblendsoffersa synergisticeffect,resultinginimprovedmechanicalproperties, thermalstability,andtransparency.Additionally,theabilityto foamtheseblendsusingsupercriticalCO2astheblowingagent providesanenvironmentallyfriendlyalternativetotraditional foamingagents,whichareoftenharmfultotheenvironment. Methodology: 1.Materialpreparation:CommerciallyavailablePCandPMMA weremeltblendedusingatwin-screwextruderatoptimized processingconditionstoobtainPCPMMAreactiveblends. 2.Characterizationtechniques: -Fourier-transforminfraredspectroscopy(FTIR):Toconfirm thepresenceofreactivegroupsandinvestigatetheformationof copolymersbetweenPCandPMMA. -Scanningelectronmicroscopy(SEM):Toexaminethe morphologyanddispersionofPMMAwithinthePCmatrix.