Publication:
A fluorescence method to estimate the distribution of stresses in polymer materials

dc.affiliation.dptoUC3M. Departamento de Ciencia e Ingeniería de Materiales e Ingeniería Químicaes
dc.affiliation.grupoinvUC3M. Grupo de Investigación: Polímeros y Compositeses
dc.contributor.authorOlmos Díaz, Dania
dc.contributor.authorAznar Jiménez, Antonio
dc.contributor.authorGonzález Benito, Francisco Javier
dc.contributor.authorBaselga Llidó, Juan
dc.date.accessioned2017-11-22T11:00:49Z
dc.date.available2017-11-22T11:00:49Z
dc.date.issued2003-12-20
dc.description.abstractIt is very important to control the distribution of stresses in order to prevent catastrophic failures during working life of polymer materials. At the present moment, there are several methods to test the distribution of stresses in materials. In the last years, many numerical methods have been proposed, but they have limitations. On the other hand, experimental methods are difficult to perform in all cases, for example when “in situ” determinations are required. In the present work, the use of environmentally sensitive fluorescence molecules (fluorophores) to estimate the tensile state in polymers is discussed. Pyrene, p-quaterphenyl, 1,6-diphenyl-1,3,5-hexatriene (DPhHT), 1,4-bis(5-phenyloxazol-2-yl)benzene and dansyl derivatives, whose fluorescences are sensitive to different types of changes (polarity, microviscosity, etc.), were immersed in one epoxy mixture. After that, the epoxy mixture was cured in a mould to prepare size controlled samples. The specimens were uniaxially loaded. In most of the cases the fluorescence suffers small variations with the epoxy deformation. To evaluate these changes, two photophysical parameters were used: (i) the integrated intensity and (ii) the first moment in the wavenumber of the emission band, 〈ν〉. Related to the fluorescence intensity, the dansyl moiety seems to be the most sensitive; however, for 〈ν〉 the DPhHT showed the highest changesen
dc.format.extent6
dc.format.mimetypeapplication/pdf
dc.identifier.bibliographicCitationOlmos, D., Aznar, A. J., González-Benito, J. & Baselga, J. (2003). A fluorescence method to estimate the distribution of stresses in polymer materials. Journal of Materials Processing Technology, 143-144, pp. 495-500.en
dc.identifier.doihttps://doi.org/10.1016/S0924-0136(03)00304-2
dc.identifier.issn0924-0136
dc.identifier.publicationfirstpage495
dc.identifier.publicationlastpage500
dc.identifier.publicationtitleJournal of Materials Processing Technologyen
dc.identifier.publicationvolume143-144
dc.identifier.urihttps://hdl.handle.net/10016/25928
dc.identifier.uxxiAR/0000004116
dc.language.isoeng
dc.publisherElsevieren
dc.rights© Elsevier, 2003
dc.rightsAtribución-NoComercial-SinDerivadas 3.0 España
dc.rights.accessRightsopen access
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/3.0/es/
dc.subject.ecienciaMaterialeses
dc.subject.ecienciaQuímicaes
dc.subject.otherFluorescenceen
dc.subject.otherTensional stateen
dc.subject.otherEpoxy resinsen
dc.titleA fluorescence method to estimate the distribution of stresses in polymer materialsen
dc.typeresearch article*
dc.type.hasVersionAM*
dspace.entity.typePublication
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