Artículo
Ramos, J.A.; Larrañaga, M.; Mondragon, I.; Salgueiro, W.; Somoza, A.; Goyanes, S.; Rubiolo, G.H. "Correlation between nanohole volume and mechanical properties of amine-cured epoxy resin blended withl poly(ethylene oxide)" (2009) Polymers for Advanced Technologies. 20(1):35-38
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Abstract:
A set of diglycidylether of bisphenol-A (DGEBA)/ 4,4′-diaminodiphenylmethane (DDM) epoxy matrix modified with poly(ethylene oxide) (PEO), pre-cured at two different temperatures, was examined by positron annihilation lifetime spectroscopy (PALS). The aim was to investigate the correlation between local free volume and mechanical properties. A negative deviation from the linear additivity rule of the local free volume is observed at both cure schedules. Using together the local free volume and mechanical results allows to conclude that the cure temperature makes small contribution to the flexural strength and modulus of blends but is responsible for the composition-dependent rise of the fracture toughness. It is proposed that this behavior is a consequence of the nearest-neighbor intrachain contacts or self-association of the epoxy-OH groups during cure leading to a non-uniform space distribution of the DGEBA-PEO contacts, which causes the deflection of the crack path. Copyright © 2008 John Wiley & Sons, Ltd.
Registro:
| Documento: | Artículo |
| Título: | Correlation between nanohole volume and mechanical properties of amine-cured epoxy resin blended withl poly(ethylene oxide) |
| Autor: | Ramos, J.A.; Larrañaga, M.; Mondragon, I.; Salgueiro, W.; Somoza, A.; Goyanes, S.; Rubiolo, G.H. |
| Filiación: | Materials and Technologies Group, Escuela Politécnica, Universidad País Vasco, Donostia-San Sebastián, Spain Instituto de Física de Moteriales Tandil (IFIMAT), Universidad Nacional del Centro de la Provincia de Buenos Aires, Pinto 399, B7000GHG Tandil, Argentina Laboratorio de Polímeros y Materiales Compuestos, FCEyN, Universidad Nacional de Buenos Aires, Pabellón 1, Buenos Aires 1424, Argentina Unidad de Actividad Moteriales, Comisión Nacional de Energia Atómica (CNEA-CAC), Avda Gral Paz 1499, B1650KNA San Martin, Argentina Consejo Nacional de Investigaciones Cientificas y Tecnológicas (CONICET), Argentina Comisión de Investigaciones Científicas de la Provincia de Buenos Aires, Calle 526 e/10 y 11, 1900 La Plata, Argentina |
| Palabras clave: | Antiplasticization; Blends; Epoxy resins; PALS; Toughness; Antiplasticization; Blends; Crack paths; Cure schedule; Cure temperature; Cured epoxy resins; Diaminodiphenylmethane; Diglycidyl ether of bisphenol-A; Epoxy matrices; Flexural strength; Linear additivity; Local free volume; Nanohole; Nearest-neighbor; Negative deviations; Nonuniform; OH group; PALS; Positron annihilation lifetime spectroscopy; Self-association; Amines; Association reactions; Curing; Ethylene; Fracture; Fracture toughness; Free volume; Insecticides; Mechanical properties; Phenols; Polyethylene oxides; Positron annihilation spectroscopy; Positrons; Resins; Epoxy resins; blend; fracture; mechanical property; synthetic resin; toughness |
| Año: | 2009 |
| Volumen: | 20 |
| Número: | 1 |
| Página de inicio: | 35 |
| Página de fin: | 38 |
| DOI: | http://dx.doi.org/10.1002/pat.1242 |
| Título revista: | Polymers for Advanced Technologies |
| Título revista abreviado: | Polym. Adv. Technol. |
| ISSN: | 10427147 |
| Registro: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_10427147_v20_n1_p35_Ramos |
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Citas:
---------- APA ----------
Ramos, J.A., Larrañaga, M., Mondragon, I., Salgueiro, W., Somoza, A., Goyanes, S. & Rubiolo, G.H. (2009) . Correlation between nanohole volume and mechanical properties of amine-cured epoxy resin blended withl poly(ethylene oxide). Polymers for Advanced Technologies, 20(1), 35-38.http://dx.doi.org/10.1002/pat.1242
---------- CHICAGO ----------
Ramos, J.A., Larrañaga, M., Mondragon, I., Salgueiro, W., Somoza, A., Goyanes, S., et al. "Correlation between nanohole volume and mechanical properties of amine-cured epoxy resin blended withl poly(ethylene oxide)" . Polymers for Advanced Technologies 20, no. 1 (2009) : 35-38.http://dx.doi.org/10.1002/pat.1242
---------- MLA ----------
Ramos, J.A., Larrañaga, M., Mondragon, I., Salgueiro, W., Somoza, A., Goyanes, S., et al. "Correlation between nanohole volume and mechanical properties of amine-cured epoxy resin blended withl poly(ethylene oxide)" . Polymers for Advanced Technologies, vol. 20, no. 1, 2009, pp. 35-38.http://dx.doi.org/10.1002/pat.1242
---------- VANCOUVER ----------
Ramos, J.A., Larrañaga, M., Mondragon, I., Salgueiro, W., Somoza, A., Goyanes, S., et al. Correlation between nanohole volume and mechanical properties of amine-cured epoxy resin blended withl poly(ethylene oxide). Polym. Adv. Technol. 2009;20(1):35-38.http://dx.doi.org/10.1002/pat.1242
