Enhanced thermal conductivity and mechanical properties of hybrid MoS2/h-BN polyurethane nanocomposites

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dc.contributor.authorRibeiro H.
dc.contributor.authorTrigueiro J.P.C.
dc.contributor.authorLopes M.C.
dc.contributor.authorPedrotti J.J.
dc.contributor.authorWoellner C.F.
dc.contributor.authorSilva W.M.
dc.contributor.authorSilva G.G.
dc.contributor.authorAjayan P.M.
dc.date.accessioned2024-03-12T23:57:12Z
dc.date.available2024-03-12T23:57:12Z
dc.date.issued2018
dc.description.abstract© 2018 Wiley Periodicals, Inc.Nanocomposites based on molybdenum disulfide (MoS2), hexagonal boron nitride (h-BN) and hybrid MoS2/h-BN nanofillers with different wt % in elastomeric polyurethane (PU) were studied with respect to their microstructure, thermal and mechanical properties. Tensile tests showed increases up to 80% in Young`s modulus for both h-BN and hybrid MoS2/h-BN composites. These results agree with dynamic mechanical analysis tests, which confirm an increase of up to 106% in storage modulus for hybrid MoS2/h-BN with 0.5 wt % content. When the hybrid MoS2/h-BN nanofillers were incorporated into the polymeric matrix, increases up to 102% in crosslink density were observed, indicating that strong interactions between the hybrid nanofillers and PU were established. However, the most important synergistic effect between the mixture of MoS2 and h-BN nanoadditives was the increase of up to 752% in thermal conductivity with respect to neat polymer. Therefore, hybrid composites based in two-dimensional MoS2/h-BN nanofillers with multifunctional attributes can be applied in advanced polymeric materials that require high mechanical and thermal performance. © 2018 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2018, 135, 46560.
dc.description.issuenumber30
dc.description.volume135
dc.identifier.doi10.1002/app.46560
dc.identifier.issn1097-4628
dc.identifier.urihttps://dspace.mackenzie.br/handle/10899/35492
dc.relation.ispartofJournal of Applied Polymer Science
dc.rightsAcesso Restrito
dc.subject.otherlanguagehexagonal boron nitride
dc.subject.otherlanguagehybrid nanocomposites
dc.subject.otherlanguagemechanical properties
dc.subject.otherlanguagemolybdenum disulfide
dc.subject.otherlanguagethermal properties
dc.titleEnhanced thermal conductivity and mechanical properties of hybrid MoS2/h-BN polyurethane nanocomposites
dc.typeArtigo
local.scopus.citations30
local.scopus.eid2-s2.0-85045829828
local.scopus.subjectElastomeric polyurethanes
local.scopus.subjectEnhanced thermal conductivity
local.scopus.subjectHexagonal boron nitride
local.scopus.subjectHexagonal boron nitride (h-BN)
local.scopus.subjectHybrid nanocomposites
local.scopus.subjectMolybdenum disulfide
local.scopus.subjectPolyurethane nanocomposites
local.scopus.subjectThermal and mechanical properties
local.scopus.updated2024-05-01
local.scopus.urlhttps://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85045829828&origin=inward
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