Effect of montmorillonite and chain extender on rheological, morphological and biodegradation behavior of PLA/PBAT blends

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dc.contributor.authorFreitas A.L.P.D.L.
dc.contributor.authorTonini Filho L.R.
dc.contributor.authorCalvao P.S.
dc.contributor.authorSouza A.M.C.D.
dc.date.accessioned2019-08-20T00:17:38Z
dc.date.available2019-08-20T00:17:38Z
dc.date.issued2017
dc.description.abstract© 2017 Elsevier LtdThe effect of montmorillonite clay (MMT) and/or chain extender (CE) on rheological, morphological and biodegradation properties of PLA/PBAT blend was investigated. The biodegradation behavior was evaluated by CO2 evolution in soil burial. CE incorporation resulted in an increase in the complex viscosity of PLA/PBAT blends, an increase in PLA crystallinity and a decrease in the dispersed phase diameter. MMT incorporation resulted in an increase in the complex viscosity, more pronounced shear-thinning behavior and a decrease in the dispersed phase diameter. CE incorporation resulted in a slight effect in the rheological properties of PLA/PBAT blend in the presence of MMT. Unfilled PLA/PBAT blend presented the highest amount of evolved CO2, and the micrographs indicated that degradation tends to occur on the surface. MMT delayed biodegradation of PLA/PBAT blends even although their surfaces presented some cracks and holes in a few localized regions. PLA/PBAT + CE blend presented the lowest amount of evolved CO2.
dc.description.firstpage189
dc.description.lastpage195
dc.description.volume62
dc.identifier.citationFREITAS, ANA LÚCIA PERRONE DE L.; TONINI FILHO, LUIZ ROBERTO; CALVÃO, PATRÍCIA SCHMID; SOUZA, ADRIANA M. CATELLI DE. Effect of montmorillonite and chain extender on rheological, morphological and biodegradation behavior of PLA/PBAT blends. POLYMER TESTING, v. 62, p. 189-195, 2017.
dc.identifier.doi10.1016/j.polymertesting.2017.06.030
dc.identifier.issn0142-9418
dc.identifier.urihttps://repositorio.fei.edu.br/handle/FEI/2312
dc.relation.ispartofPolymer Testing
dc.rightsAcesso Aberto
dc.subject.otherlanguageBiodegradation
dc.subject.otherlanguageChain extender
dc.subject.otherlanguageMontmorillonite clay
dc.subject.otherlanguagePLA/PBAT blends
dc.titleEffect of montmorillonite and chain extender on rheological, morphological and biodegradation behavior of PLA/PBAT blends
dc.typeArtigo
fei.scopus.citations74
fei.scopus.eid2-s2.0-85021908340
fei.scopus.subjectChain extenders
fei.scopus.subjectComplex viscosity
fei.scopus.subjectCrystallinities
fei.scopus.subjectDispersed phase
fei.scopus.subjectMontmorillonite clay
fei.scopus.subjectRheological property
fei.scopus.subjectShear-thinning behavior
fei.scopus.subjectSoil burials
fei.scopus.updated2025-02-01
fei.scopus.urlhttps://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85021908340&origin=inward
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