Hybrids nanocomposites based on a polymer blend (linear low-density polyethylene/poly(ethylene-co-methyl acrylate) and carbonaceous fillers (graphene and carbon nanotube)

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dc.contributor.authorNunes M.A.B.S.
dc.contributor.authorde Matos B.R.
dc.contributor.authorSilva G.G.
dc.contributor.authorIto E.N.
dc.contributor.authorde Melo T.J.A.
dc.contributor.authorFechine G.J.M.
dc.date.accessioned2024-03-12T19:21:31Z
dc.date.available2024-03-12T19:21:31Z
dc.date.issued2021
dc.description.abstract© 2020 Society of Plastics EngineersInterfacial or separate phase location of carbonaceous nanofillers (graphene and carbon nanotubes) in polymer blends with co-continuous phases can lead to double percolation behavior, significantly increasing rheological and electrical properties. The prediction of the morphology and the location of the nanofillers has been used as a tool to evaluate the proprieties of co-continuous polymer blends. This work aims to highlight the superior conductivity levels achieved using a low amount of carbon-based fillers, by the proper selection in a multiphase polymer matrix as a template for controlled dispersion and spatial distribution of the nanoparticles, offering a compromise between easy processability and enhanced performance. Here, two polymers (linear low-density polyethylene [LLDPE] and ethylene-co-methylacrylate [EMA]) and their co-continuous blend (LLDPE/EMA) were loaded with nanofillers (few-layer graphene [FLG], few-walled carbon nanotube [FWCNT]) via continuous melt mixing in twin-screw extrusion, separate and simultaneously. It was observed that the addition of the nanofillers changed the co-continuity of the blend, with the probable migration of the nanofillers from the EMA (hydrophilic) phase to the LLDPE (hydrophobic) phase. Rheological percolation occurred preferentially in blends containing FWCNT and FLG/FWCNT. Electrical conductivity was observed in all compositions, with higher electrical conductivity being noticed in hybrids.
dc.description.firstpage661
dc.description.issuenumber2
dc.description.lastpage677
dc.description.volume42
dc.identifier.doi10.1002/pc.25856
dc.identifier.issn1548-0569
dc.identifier.urihttps://dspace.mackenzie.br/handle/10899/34715
dc.relation.ispartofPolymer Composites
dc.rightsAcesso Restrito
dc.subject.otherlanguageconducting polymers
dc.subject.otherlanguagenanocomposites
dc.subject.otherlanguagenanotechnology
dc.subject.otherlanguagepolyethylene
dc.subject.otherlanguagerheology
dc.titleHybrids nanocomposites based on a polymer blend (linear low-density polyethylene/poly(ethylene-co-methyl acrylate) and carbonaceous fillers (graphene and carbon nanotube)
dc.typeArtigo
local.scopus.citations15
local.scopus.eid2-s2.0-85094189465
local.scopus.subjectCarbonaceous fillers
local.scopus.subjectContinuous phasis
local.scopus.subjectDouble percolation
local.scopus.subjectElectrical conductivity
local.scopus.subjectFew-layer graphene
local.scopus.subjectFew-walled carbon nanotubes
local.scopus.subjectMultiphase polymer
local.scopus.subjectTwin screw extrusion
local.scopus.updated2024-11-01
local.scopus.urlhttps://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85094189465&origin=inward
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