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dc.contributor.authorda Silva, Leide Lili G.
dc.contributor.authorAlves, Luciano Guimaraes [UNESP]
dc.contributor.authorToth, Andras
dc.contributor.authorUeda, Mario
dc.identifier.citationIEEE Transactions on Plasma Science. Piscataway: IEEE-Inst Electrical Electronics Engineers Inc, v. 39, n. 11, p. 3067-3071, 2011.
dc.description.abstractIn this paper, plasma immersion ion implantation (PIII) treatments of carbon fibers (CFs) are performed in order to induce modifications of chemical and physical properties of the CF surface aimed to improve the thermoplastic composite performance. The samples to be treated were immersed in nitrogen or air glow discharge plasma and pulsed at -3.0 kV for 2.0, 5.0, 10.0, and 15.0 min. After PIII processing, the specimens were characterized by atomic force microscopy (AFM), scanning electron microscopy, Raman spectroscopy, and X-ray photoelectron spectroscopy (XPS). Surface morphology of as-received CFs exhibited some scratches aligned along the fibers due to the fiber manufacturing process. After both treatments, these features became deeper, and also, a number of small particles nonuniformly distributed on the fiber surface can be observed. These particles are product of CF surface sputtering during the PIII treatment, which removes the epoxy layer that covers as-received samples. AFM analyses of CF samples treated with nitrogen depicted a large increase of the surface roughness (Rrms value approximately six times higher than that of the untreated sample). The increase of the roughness was also observed for samples treated by air PIII. Raman spectra of all samples presented the characteristic D-and G-bands at approximately 1355 and 1582 cm(-1), respectively. Analysis of the surface chemical composition provided by the XPS showed that nitrogen and oxygen are incorporated onto the surface. The polar radicals formed on the surface lead to increasing of the CF surface energy. Both the modification of surface roughness and the surface oxidation are expected to contribute for the enhancement of CF adhesion to the polymeric matrix used for composite manufacturing.en
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.publisherInstitute of Electrical and Electronics Engineers (IEEE)
dc.relation.ispartofIEEE Transactions on Plasma Science
dc.sourceWeb of Science
dc.subjectAdhesion propertiesen
dc.subjectcarbon fibers (CFs)en
dc.subjectplasma immersion ion implantation (PIII)en
dc.titleA Study of the Effect of Nitrogen and Air Plasma Immersion Ion Implantation Treatments on the Properties of Carbon Fiberen
dcterms.rightsHolderIEEE-Inst Electrical Electronics Engineers Inc
dc.contributor.institutionFaculdade de Tecnologia do Estado de São Paulo (FATEC)
dc.contributor.institutionUniversidade Estadual Paulista (UNESP)
dc.contributor.institutionHungarian Acad Sci
dc.contributor.institutionInstituto Nacional de Pesquisas Espaciais (INPE)
dc.description.affiliationTechnol Fac Pindamonhangaba FATEC, BR-12445010 Pindamonhangaba, Brazil
dc.description.affiliationSão Paulo State Univ UNESP, Dept Mech Engn, BR-12516410 Guaratingueta, Brazil
dc.description.affiliationHungarian Acad Sci, Inst Mat & Environm Chem, Chem Res Ctr, H-1025 Budapest, Hungary
dc.description.affiliationNatl Inst Space Res INPE, Associated Plasma Lab LAP, BR-12227010 Sao Jose Dos Campos, Brazil
dc.description.affiliationUnespSão Paulo State Univ UNESP, Dept Mech Engn, BR-12516410 Guaratingueta, Brazil
dc.rights.accessRightsAcesso restrito
dc.description.sponsorshipIdFAPESP: 07/03714-3
dc.description.sponsorshipIdFAPESP: 09/18381-5
unesp.campusUniversidade Estadual Paulista (UNESP), Faculdade de Engenharia, Guaratinguetápt
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