The use of plasticizers as coupling agents in preparation of PLA based nanocomposites
Conference Poster
Publication Date:
2013
abstract:
PLAisabiobased-materialparticularlyattractiveduetoitsopticalandthermalproperties,anditisconsideredachallengingcandidateforthereplacementofoil-basedpolymers.However,thelargescaleapplicationofPLAislimitedduetoitspoormechanicalproperties,poorthermalresistance,lowgasandvaporbarrier1.Inthiscontext,nanocompositematerialsofferanewandpromisingprospectivesincetheyexhibitsignificantchangesofphysicalpropertieseveninthepresenceofsmallamounts(i.e.lessthan3%)ofnanosizedfillers.Thedispersionofnanofillersinapolymermatrixisgenerallyachievedbytuningtheinterfacialpropertiesthroughthechemicalfillermodificationandtheuseofsuitablecouplingagents.
Inthisworkpoly(lacticacid)(PLA)nanocompositeswerepreparedviameltblendingwithdifferentnanofillerspreviouslydispersedinlowmolecularweightpolyesterswhichweregenerallyusedasplasticizers.Theultimateaimwastoimprovebothmechanicalfeaturesanddispersion/distributionofthefiller.
Iris type:
04.03 Poster in Atti di convegno
Keywords:
PLA; funzionalizzazione radicalica controllata; co-agenti; BFA; nitrossidi
List of contributors: