Title: Dielectric water sorption analysis
Authors: Penon, M. Giacomelli ×
Picken, S. J
W├╝bbenhorst, Michael
de Vos, G
van Turnhout, J #
Issue Date: Nov-2006
Publisher: Amer inst physics
Series Title: Review of scientific instruments vol:77 issue:11 pages:1-6
Article number: 115107
Abstract: The sorption of water vapor in Kapton (R) (polyimide) films has been investigated with a new method, dielectric sorption analysis (DSA). The technique is based on high-resolution time-resolved capacitance measurements performed during exposure of an organic coating to humidified nitrogen. The basis of the method is described together with experimental details related to the capacitance measurement, long-term stability, reproducibility, and other characteristics of the setup. The technique allows the determination of the sorption/desorption and diffusion characteristics of a coating on a time scale varying from seconds to days. Mass transport properties derived from complementary weight measurements are in good agreement with the DSA results. Real-time monitoring of the moisture sorption in organic coatings demonstrates the potential of the technique in the field of nondestructive coating inspection and testing. (c) 2006 American Institute of Physics.
ISSN: 0034-6748
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Soft Matter and Biophysics
× corresponding author
# (joint) last author

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