Interface adjustment between poly(ethylene terephthalate) and graphene oxide in order to enhance mechanical and thermal properties of nanocomposites

dc.contributor.authorde Souza Z.S.B.
dc.contributor.authorPinto G.M.
dc.contributor.authorSilva G.D.C.
dc.contributor.authorDemarquette N.R.
dc.contributor.authorFechine G.J.M.
dc.contributor.authorSobrinho M.A.M.
dc.date.accessioned2024-03-12T19:19:58Z
dc.date.available2024-03-12T19:19:58Z
dc.date.issued2021
dc.description.abstract© 2021 Society of Plastics Engineers.There is great interest in the use of graphene and derivatives in the production of polymer nanocomposites as it provides improvements in the properties of the materials to which they are associated. Such improvements depend heavily on filler dispersion and the interaction between the nanomaterials and the matrix. This work aimed to study the compatibility of graphene oxide (GO) with a poly(ethylene terephthalate) matrix. For this, graphite was modified using Hummers method, using reaction times of 3 and 6 h. The obtained GO was functionalized with amine, amide, and magnetite groups (FGO). The effects of the oxidation degree, functionalization and concentration of the nanofillers on the dispersion and consequently on the properties of the polymer nanocomposites were evaluated. The nanocomposites were synthesized by the solid–solid deposition method followed by the melt mixing technique. It was observed that lower concentrations of nanofiller associated with the lower degree of oxidation and functionalization improved the interaction of the nanofillers with the matrix, which resulted in better mechanical properties under tensile stresses for strain at break, maximum stress, Young's modulus and toughness. It was also observed that the glass transition and crystallization of nanocomposites increased due to a nucleating effect of the nanofillers.
dc.description.firstpage1997
dc.description.issuenumber7
dc.description.lastpage2011
dc.description.volume61
dc.identifier.doi10.1002/pen.25715
dc.identifier.issn1548-2634
dc.identifier.urihttps://dspace.mackenzie.br/handle/10899/34631
dc.relation.ispartofPolymer Engineering and Science
dc.rightsAcesso Restrito
dc.subject.otherlanguageinterfaces
dc.subject.otherlanguagemechanical properties
dc.subject.otherlanguagenanocomposites
dc.subject.otherlanguagepolyesters
dc.subject.otherlanguagethermal properties
dc.titleInterface adjustment between poly(ethylene terephthalate) and graphene oxide in order to enhance mechanical and thermal properties of nanocomposites
dc.typeArtigo
local.scopus.citations4
local.scopus.eid2-s2.0-85105666044
local.scopus.subjectDegree of oxidations
local.scopus.subjectFiller dispersion
local.scopus.subjectFunctionalizations
local.scopus.subjectMechanical and thermal properties
local.scopus.subjectNucleating effect
local.scopus.subjectOxidation degree
local.scopus.subjectPolymer nanocomposite
local.scopus.subjectSolid deposition
local.scopus.updated2024-12-01
local.scopus.urlhttps://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85105666044&origin=inward
Arquivos