Effect of ramie fiber and graphene oxide on the development of PCL-based materials: Micro-composites, nanocomposites and hierarchical

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dc.contributor.authorCesario L.V.
dc.contributor.authordos Santos Filho E.A.
dc.contributor.authorPinto G.M.
dc.contributor.authorCardoso K.L.F.
dc.contributor.authorBraga N.F.
dc.contributor.authorFechine G.J.M.
dc.contributor.authorde Carvalho L.H.
dc.date.accessioned2024-10-01T06:11:59Z
dc.date.available2024-10-01T06:11:59Z
dc.date.issued2024
dc.description.abstract© 2024 Society of Plastics Engineers.In recent years, the demand for environmentally sustainable materials has led to the exploration of biodegradable composites as alternatives to fossil-based polymeric matrices. Among these, poly-ε-caprolactone (PCL) has emerged for its versatility and broad applicability. However, challenges such as limited mechanical strength and thermal stability demand innovative approaches for enhancement. This study focuses on the development and characterization of hierarchical composites of PCL, ramie fibers, and graphene oxide (GO) to address these challenges. Differential scanning calorimetry (DSC), x-ray diffraction (XRD), contact angle, surface energy, mechanical properties (impact and tensile), scanning electron microscopy (SEM), and ecotoxicity assays were employed for evaluation. Results indicate that the inclusion of GO and ramie fibers alters the thermal properties, increasing melting enthalpy and crystallinity due to GO's nucleating effect and fiber-induced steric hindrance. Increased hydrophilicity and surface free energy suggest enhanced biodegradation potential. Ecotoxicity tests confirm non-toxicity, while SEM reveals low interfacial adhesion between the fiber and matrix. Tensile tests reveal no synergistic effects, although GO enhances biodegradation without compromising mechanical integrity. The presence of GO and ramie fibers does not induce toxicity, as evidenced by normal seedling growth. While hybridization does not significantly impact mechanical properties, GO offers avenues for enhancing biodegradability and expanding ramie fiber applications. This study highlights the impacts of filler integration on the properties of PCL, indicating pathways for tailored material design aimed at sustainable solutions.
dc.identifier.doi10.1002/pc.28989
dc.identifier.issnNone
dc.identifier.urihttps://dspace.mackenzie.br/handle/10899/39483
dc.relation.ispartofPolymer Composites
dc.rightsAcesso Restrito
dc.subject.otherlanguagebiodegradable
dc.subject.otherlanguagecomposites
dc.subject.otherlanguagefibers
dc.titleEffect of ramie fiber and graphene oxide on the development of PCL-based materials: Micro-composites, nanocomposites and hierarchical
dc.typeArtigo
local.scopus.citations0
local.scopus.eid2-s2.0-85204114593
local.scopus.subjectBiodegradable
local.scopus.subjectGraphene oxides
local.scopus.subjectMechanical
local.scopus.subjectMicrocomposite
local.scopus.subjectOxide fibers
local.scopus.subjectPoly(ε caprolactone)
local.scopus.subjectProperty
local.scopus.subjectRamie fibers
local.scopus.subjectScanning electrons
local.scopus.subjectThermal
local.scopus.updated2025-04-01
local.scopus.urlhttps://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85204114593&origin=inward
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