Water Absorption in Polymer Composites Reinforced with Vegetable Fiber Using Langmuir-Type Model: An Exact Mathematical Treatment

W.R. Gomes dos Santos; R.Q. da Costa Melo; A.G. Barbosa de Lima

doi:10.4028/www.scientific.net/DDF.371.102

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Water Absorption in Polymer Composites Reinforced with Vegetable Fiber Using Langmuir-Type Model: An Exact Mathematical Treatment

Abstract:

This work presents a theoretical study of the anomalous behavior of moisture transient diffusion in vegetable fiber-reinforced composites materials using Langmuir-type model. For obtain the analytical solution was used the Laplace transform technique. Results of the absorption kinetics and concentration distribution of water (free and trapped water molecules) within the material along the process are presented and analyzed. Predicted results compared to experimental data of average moisture content have shown that the model was effective for description of the phenomenon, allowing a better understanding about the effects of moisture migration mechanisms.

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Periodical:

Defect and Diffusion Forum (Volume 371)

Pages:

102-110

DOI:

https://doi.org/10.4028/www.scientific.net/DDF.371.102

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Online since:

February 2017

Authors:

W.R. Gomes dos Santos, R.Q. da Costa Melo, A.G. Barbosa de Lima

Keywords:

Composite, Langmuir Model, Vegetable Fibers

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