Abstract
A study of the sorption and desorption of moisture in a structural adhesively bonded composite structure using low- and high-frequency dielectric spectroscopy is reported when the adhesive is subjected to a hot and wet environment. As water penetrates the structure, variations in the dielectric permittivity and dielectric loss can be used to understand the nature of the absorption process. A new dielectric tool is introduced to aid interpretation of the dielectric data based on the Kirkwood-Fröhlich equation of the dipolar activity. The data are correlated with gravimetric and dynamic mechanical thermal analysis of the adhesive during exposure to moisture reported in Part I of this series of three articles.
Original language | English |
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Pages (from-to) | 1015-1026 |
Number of pages | 11 |
Journal | Journal of Adhesion |
Volume | 78 |
Issue number | 12 |
DOIs | |
Publication status | Published - 2002 |
Keywords
- adhesively bonded composite structure
- dielectric spectroscopy
- Kirkwood-Frohlich equation
- dipolar activity
- dynamic mechanical thermal analysis
- pure and applied chemistry
- mechanical engineering