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Effect of water sorption on the structure and mechanical properties of an epoxy resin system

2001; Wiley; Volume: 80; Issue: 1 Linguagem: Inglês

10.1002/1097-4628(20010404)80

1097-4628

P. Nógueira, C. Ram�rez, A. Torres, M. J. Abad, Jesús Cano, J. L�pez, I. L�pez-Bueno, L. Barral,

Mechanical Behavior of Composites

Journal of Applied Polymer ScienceVolume 80, Issue 1 p. 71-80 Effect of water sorption on the structure and mechanical properties of an epoxy resin system P. Nogueira, P. Nogueira Departamento de Física, E. U. P. Ferrol, Universidad de A Coruña, Avda 19 de Febrero s/n, 15405 Ferrol, SpainSearch for more papers by this authorC. Ramírez, C. Ramírez Departamento de Física, E. U. P. Ferrol, Universidad de A Coruña, Avda 19 de Febrero s/n, 15405 Ferrol, SpainSearch for more papers by this authorA. Torres, A. Torres Departamento de Física, E. U. P. Ferrol, Universidad de A Coruña, Avda 19 de Febrero s/n, 15405 Ferrol, SpainSearch for more papers by this authorM. J. Abad, M. J. Abad Departamento de Física, E. U. P. Ferrol, Universidad de A Coruña, Avda 19 de Febrero s/n, 15405 Ferrol, SpainSearch for more papers by this authorJ. Cano, J. Cano Departamento de Física, E. U. P. Ferrol, Universidad de A Coruña, Avda 19 de Febrero s/n, 15405 Ferrol, SpainSearch for more papers by this authorJ. López, J. López Departamento de Física, E. U. P. Ferrol, Universidad de A Coruña, Avda 19 de Febrero s/n, 15405 Ferrol, SpainSearch for more papers by this authorI. López-Bueno, I. López-Bueno Departamento de Física, E. U. P. Ferrol, Universidad de A Coruña, Avda 19 de Febrero s/n, 15405 Ferrol, SpainSearch for more papers by this authorL. Barral, Corresponding Author L. Barral [email protected] Departamento de Física, E. U. P. Ferrol, Universidad de A Coruña, Avda 19 de Febrero s/n, 15405 Ferrol, SpainDepartamento de Física, E. U. P. Ferrol, Universidad de A Coruña, Avda 19 de Febrero s/n, 15405 Ferrol, Spain===Search for more papers by this author P. Nogueira, P. Nogueira Departamento de Física, E. U. P. Ferrol, Universidad de A Coruña, Avda 19 de Febrero s/n, 15405 Ferrol, SpainSearch for more papers by this authorC. Ramírez, C. Ramírez Departamento de Física, E. U. P. Ferrol, Universidad de A Coruña, Avda 19 de Febrero s/n, 15405 Ferrol, SpainSearch for more papers by this authorA. Torres, A. Torres Departamento de Física, E. U. P. Ferrol, Universidad de A Coruña, Avda 19 de Febrero s/n, 15405 Ferrol, SpainSearch for more papers by this authorM. J. Abad, M. J. Abad Departamento de Física, E. U. P. Ferrol, Universidad de A Coruña, Avda 19 de Febrero s/n, 15405 Ferrol, SpainSearch for more papers by this authorJ. Cano, J. Cano Departamento de Física, E. U. P. Ferrol, Universidad de A Coruña, Avda 19 de Febrero s/n, 15405 Ferrol, SpainSearch for more papers by this authorJ. López, J. López Departamento de Física, E. U. P. Ferrol, Universidad de A Coruña, Avda 19 de Febrero s/n, 15405 Ferrol, SpainSearch for more papers by this authorI. López-Bueno, I. López-Bueno Departamento de Física, E. U. P. Ferrol, Universidad de A Coruña, Avda 19 de Febrero s/n, 15405 Ferrol, SpainSearch for more papers by this authorL. Barral, Corresponding Author L. Barral [email protected] Departamento de Física, E. U. P. Ferrol, Universidad de A Coruña, Avda 19 de Febrero s/n, 15405 Ferrol, SpainDepartamento de Física, E. U. P. Ferrol, Universidad de A Coruña, Avda 19 de Febrero s/n, 15405 Ferrol, Spain===Search for more papers by this author First published: 01 February 2001 https://doi.org/10.1002/1097-4628(20010404)80:1 3.0.CO;2-HCitations: 224Read the full textAboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Abstract The characteristics of sorption and diffusion of water in an amine-cured epoxy system based on tetraglycidyl diaminodiphenylmethane and a novolac glycidyl ether resin were studied as a function both of the polymer microstructure, known from previous works, and the temperature. Water-sorption experiments and dynamic mechanical analysis (DMA) were performed. Tensile stress–strain and Rockwell hardness tests were conducted to investigate the effects of absorbed water on the mechanical properties of the material. Competing effects of the sorption of water in the free volume and of strong interactions between water molecules and polar groups of the network were used to explain the diffusional behavior observed, which followed Fick's second law. DMA analysis seemed to be sensitive to the water effects and the viscoelastic behavior was related both to the water-sorption processes and to the microstructure of the system. An important impact of water uptake on the tensile properties at break was also appreciated. © 2001 John Wiley & Sons, Inc. J Appl Polym Sci 80: 71–80, 2001 Citing Literature Volume80, Issue14 April 2001Pages 71-80 RelatedInformation