Porosity Characterization of Carbon Fiber/Epoxy Composite Using Hg Porosimetry and Other Techniques

dc.contributor.authorMonticeli, Francisco Maciel [UNESP]
dc.contributor.authorMontoro, Sergio Roberto
dc.contributor.authorVoorwald, Herman Jacobus Cornelis [UNESP]
dc.contributor.authorCioffi, Maria Odila Hilário [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionFatec-Faculdade de Tecnologia de Pindamonhangaba
dc.date.accessioned2020-12-12T02:34:18Z
dc.date.available2020-12-12T02:34:18Z
dc.date.issued2020-04-01
dc.description.abstractIn polymer composites, the porosity acts mainly as a stress concentrator, which has detrimental effects depending on the shape and position of the voids. Also, the presence of voids is detrimental to the mechanical properties, which results in the need for an accurate method for their characterization in terms of morphology, position, and volume fraction. The aim of this study was to establish an appropriate procedure for the measurement of voids in a polymer composite using the mercury porosimetry technique. Data were also collected using the Taguchi approach. Subsequently, the feasibility of applying the Hg porosimetry methodology was confirmed through a comparison with standard techniques. Statistical analysis was used to determine the best Hg porosimetry parameters and pressures between 203 and 231 MPa was found to generate reliable results for the maximum porosity measurement, with no dependence on other parameters. Since the Hg porosimetry, acid digestion, and optical microscopy methods provided porosity results with a statistically significant similarity, it can be concluded that all these methods are feasible for the analysis of voids. Finally, potential benefits of the proposed porosity analysis methodology were highlighted through the characterization of the void volume, position, and morphology. POLYM. ENG. SCI., 60:841–849, 2020. © 2020 Society of Plastics Engineers.en
dc.description.affiliationDepartment of Materials and Technology Fatigue and Aeronautic Materials Research Group School of Engineering Sao Paulo State University (UNESP)
dc.description.affiliationFatec-Faculdade de Tecnologia de Pindamonhangaba
dc.description.affiliationUnespDepartment of Materials and Technology Fatigue and Aeronautic Materials Research Group School of Engineering Sao Paulo State University (UNESP)
dc.description.sponsorshipCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.description.sponsorshipIdCAPES: 001
dc.description.sponsorshipIdFAPESP: 2015/19967-4
dc.description.sponsorshipIdFAPESP: 2016/07245-7
dc.format.extent841-849
dc.identifierhttp://dx.doi.org/10.1002/pen.25343
dc.identifier.citationPolymer Engineering and Science, v. 60, n. 4, p. 841-849, 2020.
dc.identifier.doi10.1002/pen.25343
dc.identifier.issn1548-2634
dc.identifier.issn0032-3888
dc.identifier.scopus2-s2.0-85078668747
dc.identifier.urihttp://hdl.handle.net/11449/201506
dc.language.isoeng
dc.relation.ispartofPolymer Engineering and Science
dc.sourceScopus
dc.titlePorosity Characterization of Carbon Fiber/Epoxy Composite Using Hg Porosimetry and Other Techniquesen
dc.typeArtigo
unesp.author.orcid0000-0002-0814-8160[1]
unesp.departmentMateriais e Tecnologia - FEGpt

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