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Liquid diffusion into epoxy resin composites
Author(s) -
Aminabhavi Tejraj M.
Publication year - 1988
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.1988.070350511
Subject(s) - epoxy , distilled water , composite material , materials science , diffusion , activation energy , vermiculite , fick's laws of diffusion , sorption , arrhenius equation , chemistry , thermodynamics , adsorption , organic chemistry , chromatography , physics
Dynamic sorption behavior of four epoxy resin matrix composites derived from fly ash, jute, mica, or vermiculite was studied in water and salt solution at 24°, 35°, and 45°C. The mass of water uptake per mass of sample was determined as a function of time. Diffusion coefficients were higher for distilled water than those for salt solution. The diffusion parameters were computed from the Arrhenius plots and the results analyzed in terms of a Fickian model. The results as obtained from weight gain assays are consistent with the view that the activation energy of diffusion is associated with the energy required to produce a space of sufficient cross‐section for the diffusing molecule to pass.