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Wet Ageing of Syntactic Foams Under High Pressure/High Temperature in Deionized Water

[+] Author Affiliations
Nelly Gimenez, Valérie Sauvant-Moynot

Institut Français du Pétrole, Vernaison, France

Henry Sautereau

INSA de Lyon, Villeurbanne Cedex, France

Paper No. OMAE2005-67449, pp. 205-210; 6 pages
doi:10.1115/OMAE2005-67449
From:
  • ASME 2005 24th International Conference on Offshore Mechanics and Arctic Engineering
  • 24th International Conference on Offshore Mechanics and Arctic Engineering: Volume 3
  • Halkidiki, Greece, June 12–17, 2005
  • Conference Sponsors: Ocean, Offshore and Arctic Engineering Division
  • ISBN: 0-7918-4197-9 | eISBN: 0-7918-3759-9
  • Copyright © 2005 by ASME

abstract

Syntactic foams (hollow glass microspheres embedded in an organic matrix) were traditionally dedicated to buoyancy applications and are now used for thermal insulation purpose. The paper focuses on the hygrothermal ageing of such materials with model diepoxy/diamine thermoset matrix having high Tg and controlled architecture revealed by the mechanical and thermal properties and by gravimetric measurements. The ageing of syntactic foams of different volume fractions is studied under the combination of both high pressure / high temperature conditions (up to 300 bar / 100°C) to discuss the factors governing the long-term performance of these materials. Attention is paid to the degradation phenomenon observed on the foam after matrix has reached saturation and associated with markedly increase of mass gain. This study points out how the hydrolytic ageing of glass microspheres may reduce the durability of syntactic foams used in hot wet conditions.

Copyright © 2005 by ASME

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