Effect of water aging on the mechanical properties of flax fiber/bio-based resin composites |
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Authors: | Evgenia Kollia Xrisoula Saridaki Dimitrios Karagiannis Vassilis Kostopoulos |
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Affiliation: | Applied Mechanics Laboratory, Department of Mechanical Engineering and Aeronautics, University of Patras University Campus, 26500 Patras, Greece |
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Abstract: | Present work investigates the effect of hydrothermal aging of flax fiber-reinforced bio-based epoxy resin laminates on the mechanical and thermomechanical properties of the composites. Three different types of bio-based resins were used. Plates reinforced with eight layers plain weave flax fibers of 150 g/m2, manufactured using Resin Transfer Molding (RTM), compression molding or autoclave technique depends on type of the resin. One dimensional Fickian behavior shows a good fitting to the experimental data derived from weight measurements. The water uptake at the equilibrium state in the case of 60 °C temperature was slightly greater than that at 40 °C. The mechanical properties after hydrothermal aging show a significant reduction and do not return to their initial values even after the drying process. © 2019 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2020 , 137, 48787. |
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Keywords: | bio materials dissolution flax fibers hydrothermal aging |
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