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How to calculate water absorption of fiber? 


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To calculate water absorption of fiber, various methods and models can be employed based on the type of fiber and composite material. Studies have utilized different approaches such as the Langmuir diffusive model for predicting water absorption in polymer composites reinforced with vegetal fibers . Additionally, the use of MATLAB software has been explored for water absorption tests on composites reinforced with coconut shell fiber, aluminum oxide, and silicon carbide, providing insights into the diffusion and retention of water molecules within the material . Furthermore, research has focused on monitoring water diffusion in laminated biocomposites using artificial neural network (ANN) methods, demonstrating the ability to accurately predict water absorption behavior in biocomposites . These methodologies offer valuable tools for understanding and quantifying water absorption in fiber-reinforced composites.

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Water absorption of fiber can be calculated by measuring the change in weight, volume, and density of the composite over time when immersed in water, following ASTM D570 standards.
The water absorption of fiber can be calculated using a three-dimensional mathematical model, specifically the Langmuir-Type Model, to predict moisture transport in vegetable fiber-reinforced polymer composites.
The water absorption of fiber can be calculated by conducting water absorption tests on composite materials using suitable ASTM methods and analyzing the results with MATLAB software.
To calculate water absorption of fiber in polymer composites, utilize Langmuir's diffusive model considering free water diffusion and adsorption at capillary walls within the material.
Water absorption of fiber can be calculated using Fick's law and artificial neural network (ANN) method, as demonstrated in the study on flax/sisal reinforced hybrid biocomposites.

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