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Absorption of water at 100°C by polyurethane foam

✍ Scribed by A. Sabbahi; J.M. Vergnaud

Publisher
Elsevier Science
Year
1991
Tongue
English
Weight
358 KB
Volume
27
Category
Article
ISSN
0014-3057

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✦ Synopsis

Akstract--The absorption of water at 100C by polyurethane (PU) foam is described by considering transient diffusion with constant diffusivity. Sheets of PU foam are used, with a one-, di-or tri-dimensional transport of water through the sheet. Numerical models, with finite differences, are capable of following the process of absorption with good accuracy in all three cases. Two values of the diffusivity are obtained, the one for the transport through the thickness of the sheet, and the other through the other dimensions, parallel with the plane surface of the sheet.

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