The role of physical structure and morphology on the photodegradation behaviour of polypropylene-graphene oxide nanocomposites

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dc.contributor.authorde Oliveira Y.D.C.
dc.contributor.authorAmurin L.G.
dc.contributor.authorValim F.C.F.
dc.contributor.authorFechine G.J.M.
dc.contributor.authorAndrade R.J.E.
dc.date.accessioned2024-03-12T23:52:17Z
dc.date.available2024-03-12T23:52:17Z
dc.date.issued2019
dc.description.abstract© 2019 Elsevier LtdIn this work, for the first time, the effect of graphene oxide on the photodegradation behaviour of polypropylene-graphene oxide nanocomposites is presented. The graphene oxide was characterised, and AFM images show that the GO can be classified as multilayer-GO (mGO). Based on previous work, two new methods were used, liquid-phase feeding (LPF) and solid-solid deposition (SSD), to insert pre-exfoliated mGO into the polymer matrix. Moreover, the morphology and structure of the nanocomposites were analysed using an optical microscope, rheological and dynamic mechanical analysis, x-ray diffraction, and differential scanning calorimetry. The results show that stacked layers are obtained, especially for the SSD method, since it decreases the nanocomposites viscosity, mostly due to the self-lubricity of mGO layers. Finally, the photodegradation behaviour was investigated and revealed that mGO plays an important role, with a factor of three increase regarding photodegradation resistance, when compared to pure polypropylene.
dc.description.firstpage146
dc.description.lastpage158
dc.description.volume176
dc.identifier.doi10.1016/j.polymer.2019.05.029
dc.identifier.issn0032-3861
dc.identifier.urihttps://dspace.mackenzie.br/handle/10899/35220
dc.relation.ispartofPolymer
dc.rightsAcesso Restrito
dc.subject.otherlanguageGraphene oxide
dc.subject.otherlanguageNanocomposites
dc.subject.otherlanguagePolypropylene
dc.titleThe role of physical structure and morphology on the photodegradation behaviour of polypropylene-graphene oxide nanocomposites
dc.typeArtigo
local.scopus.citations28
local.scopus.eid2-s2.0-85066455642
local.scopus.subjectAFM image
local.scopus.subjectGraphene oxide nanocomposites
local.scopus.subjectLiquid Phase
local.scopus.subjectMorphology and structures
local.scopus.subjectPhysical structures
local.scopus.subjectSolid-solid
local.scopus.subjectStacked layer
local.scopus.updated2024-05-01
local.scopus.urlhttps://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85066455642&origin=inward
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