Degradation in seawater of structural adhesives for hybrid fibre-metal laminated materials

Alia, Cristina and Biezma Moraleda, María Victoria and Pinilla Cea, Maria Paz and Arenas Reina, José Manuel and Suárez Bermejo, Juan Carlos (2013). Degradation in seawater of structural adhesives for hybrid fibre-metal laminated materials. "Advances in Materials Science and Engineering", v. 2013 ; pp. 1-10. ISSN 1687-8434. https://doi.org/10.1155/2013/869075.

Description

Title: Degradation in seawater of structural adhesives for hybrid fibre-metal laminated materials
Author/s:
  • Alia, Cristina
  • Biezma Moraleda, María Victoria
  • Pinilla Cea, Maria Paz
  • Arenas Reina, José Manuel
  • Suárez Bermejo, Juan Carlos
Item Type: Article
Título de Revista/Publicación: Advances in Materials Science and Engineering
Date: January 2013
ISSN: 1687-8434
Volume: 2013
Subjects:
Faculty: E.U.I.T. Industrial (UPM)
Department: Expresión Gráfica Industrial [hasta 2014]
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

The adhesives used for applications in marine environments are subject to particular chemical conditions, which are mainly characterised by an elevated chlorine ion content and intermittent wetting/drying cycles, among others.These conditions can limit the use of adhesives due to the degradation processes that they experience. In this work, the chemical degradation of two different polymers, polyurethane and vinylester, was studied in natural seawater under immersion for different periods of time.The diffusion coefficients and concentration profiles of water throughout the thickness of the adhesiveswere obtained.Microstructural changes in the polymer due to the action of water were observed by SEM, and the chemical degradation of the polymer was monitored with the Fourier transform infrared spectroscopy (FTIR) and differential scanning calorimetry (DSC). The degradation of the mechanical properties of the adhesive was determined by creep tests withMixed Cantilever Beam (MCB) specimens at different temperatures. After 180 days of immersion of the specimens, it was concluded that the J-integral value (depending on the strain) implies a loss of stiffness of 51% and a decrease in the failure load of 59% for the adhesive tested.

More information

Item ID: 15784
DC Identifier: http://oa.upm.es/15784/
OAI Identifier: oai:oa.upm.es:15784
DOI: 10.1155/2013/869075
Official URL: http://www.hindawi.com/journals/amse/2013/869075/
Deposited by: Memoria Investigacion
Deposited on: 08 Oct 2013 08:02
Last Modified: 18 Dec 2018 08:50
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