Applicability of ft-ir techniques and goniometry on characterization of carbon fiber surfaces

Show simple item record

dc.contributor.author Oliveira Junior, Mauro Santos [UNIFESP]
dc.contributor.author Diniz, Milton Faria
dc.contributor.author Lazzarini Dutra, Rita de Cassia
dc.contributor.author Massi, Marcos
dc.contributor.author Otani, Choyu
dc.date.accessioned 2019-01-21T10:30:06Z
dc.date.available 2019-01-21T10:30:06Z
dc.date.issued 2016
dc.identifier http://dx.doi.org/10.5028/jatm.v8i1.537
dc.identifier.citation Journal Of Aerospace Technology And Management. Sao paulo, v. 8, n. 1, p. 26-32, 2016.
dc.identifier.issn 1984-9648
dc.identifier.uri http://repositorio.unifesp.br/handle/11600/49579
dc.description.abstract Carbon fibers have been widely used as structural reinforcement in aeronautical composites, because of their exceptional mechanical properties. However, carbon fibers present few polar groups on their surfaces inducing a weak interaction with some thermosetting and thermoplastic matrices. Surface treatments, such as thermal and electrochemical oxidation, are generally followed by sizing in order to improve interfacial adhesion between carbon fibers and some matrices. The precise surface characterization, by means of its chemical groups and radical identification, has been pointed out as an effective tool of carbon fibers finishing assessment process. Goniometry and Fourier transform-infrared spectroscopy are widely used to characterize some materials applied in industry, but not for carbon fibers, mainly because of their filamentary shape and the high concentration of carbon even in their near surface. In this paper, unsized and sized Torayca T300 carbon fibers were characterized by goniometry tests to evaluate hydrophilic or hydrophobic character. Qualitatively, it was noticed the effect of sizing on carbon fibers by their hydrophilic behavior, which has not been observed in unsized samples. Chemical analysis was performed by Fourier transform-infrared spectroscopy using different setups: photoacoustic, attenuated total reflectance and universal attenuated total reflectance. The Fourier transform-infrared spectroscopy/attenuated total reflectance/Germanium was shown to be the most promising technique to analyze carbon fibers surface, despite the low level of relative intensities of some bands. By this technique, it was possible to observe differences between unsized and sized carbon fibers spectra. en
dc.format.extent 26-32
dc.language.iso eng
dc.publisher Inst aeronautica & espaco-iae
dc.relation.ispartof Journal Of Aerospace Technology And Management
dc.rights Acesso aberto
dc.subject Carbon Fiber en
dc.subject Infrared Spectroscopy en
dc.subject Wettability en
dc.subject Characterization en
dc.subject Surface PropertiesPlasma Treatment en
dc.subject Spectroscopy en
dc.subject Energy en
dc.subject Reflectance en
dc.subject Oxidation en
dc.subject Polymers en
dc.title Applicability of ft-ir techniques and goniometry on characterization of carbon fiber surfaces en
dc.type Artigo
dc.description.affiliation Universidade Federal de São Paulo – Instituto de Ciência e Tecnologia – Departamento de Ciência e Tecnologia – São José dos Campos/SP – Brazil
dc.description.affiliation Departamento de Ciência e Tecnologia Aeroespacial – Instituto Tecnológico de Aeronáutica – Divisão de Ciências Fundamentais – São José dos Campos/SP – Brazil
dc.description.affiliation Departamento de Ciência e Tecnologia Aeroespacial – Instituto de Aeronáutica e Espaço – Divisão de Química – São José dos Campos/SP – Brazil
dc.description.affiliation Departamento de Ciência e Tecnologia Aeroespacial – Instituto Tecnológico de Aeronáutica – Divisão de Engenharia Mecânica – São José dos Campos/SP – Brazil
dc.description.affiliationUnifesp Universidade Federal de São Paulo – Instituto de Ciência e Tecnologia – Departamento de Ciência e Tecnologia – São José dos Campos/SP – Brazil
dc.identifier.file S2175-91462016000100026.pdf
dc.identifier.scielo S2175-91462016000100026
dc.identifier.doi 10.5028/jatm.v8i1.537
dc.description.source Web of Science
dc.identifier.wos WOS:000371998500004



File

File Size Format View

There are no files associated with this item.

This item appears in the following Collection(s)

Show simple item record

Search


Browse

Statistics

My Account