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| Naji, M. |
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| Motta, Antonella |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Petrov, R. H. | Madrid |
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| Bih, L. |
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| Casati, R. |
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| Kočí, Jan | Prague |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ali, M. A. |
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| Rančić, M. |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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Guillaume, Derombise
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Publications (5/5 displayed)
- 2012Morphological and physical evolutions of aramid fibers aged in a moderately alkaline environmentcitations
- 2011Long-Term Mechanical Behavior of Aramid Fibers in Seawatercitations
- 2010Influence of Finish Treatment on the Durability of Aramid Fibers Aged Under an Alkaline Environmentcitations
- 2010Degradation of Aramid Fibers Under Alkaline and Neutral Conditions: Relations Between the Chemical Characteristics and Mechanical Propertiescitations
- 2008Durability of Aramid Ropes in a Marine Environment
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article
Degradation of Aramid Fibers Under Alkaline and Neutral Conditions: Relations Between the Chemical Characteristics and Mechanical Properties
Abstract
Aramid fibers are high-performance materials that have been used in various applications such as heat and cut protection, composites, rubber reinforcement, ropes and cables, and fabrics; today their use is proposed in geotextiles for alkaline ground reinforcement, and they have been used in cables for marine applications for a few years. However, there is a lack of experience with the long-term behavior of aramid fibers in wet and alkaline environments. Aging studies were therefore performed on Twaron 1000 fibers under different conditions (sea water, deionized water, pH 9, and pH 11). Hydrolytic degradation was evaluated with Fourier transform infrared and viscosimetry measurements, which were correlated with tensile test measurements. The tensile strength followed a logarithmic evolution with the aging time, whereas the modulus remained constant. A linear relation between the tensile strength and the reduced viscosity of the hydrolytically aged fibers is highlighted. Aging indicators are proposed that allow the hydrolytic degradation to be quantified.