Pseudoboehmite or graphene oxide, what is the best additive for natural polymer pla - Poly (l-lactic acid)?

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dc.contributor.authorAlmeida F.J.M.
dc.contributor.authorMassi M.
dc.contributor.authorMiranda L.F.
dc.contributor.authorLima B.L.S.
dc.date.accessioned2024-03-12T19:19:33Z
dc.date.available2024-03-12T19:19:33Z
dc.date.issued2021
dc.description.abstract© 2021 The Author(s). Published by IOP Publishing Ltd.In cases of severe injuries or burns, skin grafts (scaffold) are often necessary skin substitutes. To not harm the patient or the donor, research is necessary to search for heterografts, that are formed by biomaterials and are also biodegradable and bioabsorbable to the human body, as is the case with poly (L-lactic acid) - PLA. However, the natural polymers placed on the skin suffer great degradation in media with large amounts of carbon and water, have little durability due to their low ductility. For the proposal, the graphene oxide (GO) nanocharge and pseudoboehmite (PB) were obtained. It is believed that the nanofillers dispersed in the polymer matrix can improve mechanical properties regarding ductility and tenacity, without losing thermal properties. Subsequently, the hybrid nanocharge dispersion methods were employed to obtain in the poly (L-Lactic Acid) (PLA) matrix, forming the material for the desired scaffold. For this research, injectable specimens of pure PLA, PLA structured with GO nanoparticles, and PLA structured with PB nanoparticles, were manufactured. The microstructural and mechanical characterizations were performed on the specimens, to compare the effect generated by the nanocharges on the bulk material. The results showed that the increase in the concentrations of PB and GO nanofillers showed an increase in tenacity and ductility compared to pure PLA, a property that is desired in the scaffold structure.
dc.description.issuenumber8
dc.description.volume8
dc.identifier.doi10.1088/2053-1591/ac19ea
dc.identifier.issn2053-1591
dc.identifier.urihttps://dspace.mackenzie.br/handle/10899/34609
dc.relation.ispartofMaterials Research Express
dc.rightsAcesso Aberto
dc.subject.otherlanguagegraphene oxide
dc.subject.otherlanguagepoly (L-Lactic Acid)
dc.subject.otherlanguagepseudoboehmite
dc.titlePseudoboehmite or graphene oxide, what is the best additive for natural polymer pla - Poly (l-lactic acid)?
dc.typeArtigo
local.scopus.citations1
local.scopus.eid2-s2.0-85114031498
local.scopus.subjectBulk materials
local.scopus.subjectDispersion methods
local.scopus.subjectMechanical characterizations
local.scopus.subjectMicro-structural
local.scopus.subjectPoly L lactic acid
local.scopus.subjectPseudo-boehmite
local.scopus.subjectScaffold structures
local.scopus.subjectSkin substitutes
local.scopus.updated2024-12-01
local.scopus.urlhttps://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85114031498&origin=inward
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