NDLI: Moisture diffusion into epoxy adhesive: testing and modeling

Content Provider	Springer Nature Link
Author	Al Harthi, Mamdouh Loughlin, Kevin Kahraman, Ramazan
Copyright Year	2007
Abstract	Moisture diffusion into epoxy adhesive is investigated through utilizing complete fluid immersion tests in distilled water. Apparent diffusivity for each specimen is determined by two methods, one using the diffusion data at early times (at low loading) and the other using the data at large times (close to the saturation point). The results of the two methods are quite different, indicating that diffusivity is concentration dependent. The apparent diffusivity values obtained through the method using the early data points are about twice those obtained through the method utilizing the data points at large diffusion times. Variance of diffusivity with concentration is also considered as the third method of analysis to determine the concentration dependency. A good agreement is observed between the resultant Fickian model solved numerically and the experimental data. The latter result appears to indicate a change in the excess volume of mixing during the sorption process.
Starting Page	115
Ending Page	120
Page Count	6
File Format	PDF
ISSN	09295607
Journal	Adsorption
Volume Number	13
Issue Number	2
e-ISSN	15728757
Language	English
Publisher	Springer US
Publisher Date	2007-07-17
Publisher Place	Boston
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Adhesive Epoxy Diffusion Diffusivity Distilled water Concentration Model Test Engineering Thermodynamics, Transport Phenomena Industrial Chemistry/Chemical Engineering Surfaces and Interfaces, Thin Films
Content Type	Text
Resource Type	Article
Subject	Chemistry Chemical Engineering Surfaces and Interfaces

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