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52 Newest Publications about the topic aramid fibers

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Accelerated and real‐time creep and creep‐rupture results for aramid fibers

26-Feb-2012 | Giannopoulos, Ioannis P.; Burgoyne, Chris J., Journal of Applied Polymer Science, 2012

Abstract This article presents results from conventional creep tests (CCT) and two accelerated test methods (the stepped isothermal method (SIM) and the stepped isostress method (SSM)) to determine the creep and creep‐rupture behavior of two different aramid fibers, Kevlar 49 and Technora. CCT ...

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Accelerated and real‐time creep and creep‐rupture results for aramid fibers

26-Feb-2012 | Giannopoulos, Ioannis P.; Burgoyne, Chris J., Journal of Applied Polymer Science, 2012

Abstract This article presents results from conventional creep tests (CCT) and two accelerated test methods (the stepped isothermal method (SIM) and the stepped isostress method (SSM)) to determine the creep and creep‐rupture behavior of two different aramid fibers, Kevlar 49 and Technora. CCT ...

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Effect of matrix on the ballistic impact of aramid fabric composite laminates by armor piercing projectiles

06-Feb-2012 | Nayak, N.; Sivaraman, P.; Banerjee, A.; Madhu, V.; Dutta, A.L.; Mishra, V.S.; B.C. Chakraborty, Polymer Composites, 2012

Abstract Ballistic impact performance of aramid fiber fabric‐epoxy and aramid fiber fabric‐polypropylene (PP)‐based composite laminates has been studied against 7.62 mm armor piercing projectiles. Twaron® was used as aramid fiber fabric in the composites. Role of matrix on the damage pattern ...

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Mechanical, flammability, and crystallization behavior of polypropylene composites reinforced by aramid fibers

06-Jan-2012 | Chen, Xiaosui; Zhang, Sheng; Xu, Guozhi; Zhu, Xinjun; Liu, Wei, Journal of Applied Polymer Science, 2012

Abstract In this article, we report the mechanical and thermal properties, together with the crystallization and flammability behaviors, of pure polypropylene (PP) and PP/aramid fiber (AF) composites with AF loadings of 5, 10, 20, 30, and 40 wt %. The mechanical properties of the samples were ...

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An anomalous dependence of the elastic modulus of aramid fibers on strain

24-Dec-2011 | S. L. Bazhenov, A. K. Rogozinskii, S. S. Mal’kov, A. A. Berlin, Polymer Science Series A, 2011

The effect of tensile strain on the acoustic elastic modulus of Rusar, Armos, and SVM aramid fibers is studied. The elastic modulus is found to decrease during stretching to a strain on the order of 0.2%; at high strains, an increase in the modulus is observed. The effect is revealed both in a ...

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Wetting and adhesion behavior of armos fibers after dielectric barrier discharge plasma treatment

20-Dec-2011 | Jia, Caixia; Chen, Ping; Wang, Qian; Li, Bin; Chen, Mingxin, Journal of Applied Polymer Science, 2011

Abstract To investigate the influence of atmospheric plasma treatment on aramid fiber wetting and adhesion behavior, an air dielectric barrier discharge (DBD) was applied to the Armos aramid fiber surface at different discharge power densities. Dynamic contact angle analysis indicated that the ...

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Some spin dope requirements for achieving a stable forming process for aramid fibers

04-Nov-2011 | V. D. Lunev, N. N. Machalaba, Fibre Chemistry, 2011

We have conducted rheological studies of polymer solutions synthesized using solvents having different dielectric constants. We have determined the effect of this characteristic on the rheological properties of the spin dopes. Estimation of the strength indices of aramid fibers obtained from ...

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Morphological and physical evolutions of aramid fibers aged in a moderately alkaline environment

02-Sep-2011 | Derombise, G.; van Schoors, L. Vouyovitch; Bourmaud, A.; Davies, P., Journal of Applied Polymer Science, 2011

Abstract The recent use of aramid fibers in geotextiles for ground reinforcement raises fundamental durability issues, in particular in alkaline soils where they are subjected to hydrolysis. To study the degradation mechanisms in such an environment, accelerated aging at pH 9 and at pH 11 has ...

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Reactive dyeing of meta-aramid fabrics photografted with dimethylaminopropyl methacrylamide

29-Jul-2011 | Eun-Min Kim, Byung Gil Min, Jinho Jang, Fibers and Polymers, 2011

Aramid fibers have been known to difficult to dye with conventional dyes and dyeing techniques because of its extremely high crystallinity and compactness. In order to make the aramid fibers dyeable to a bright color in deep shade, meta-aramid fabrics were photografted under continuous UV ...

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Long‐term mechanical behavior of aramid fibers in seawater

01-Jul-2011 | Derombise, G.; Chailleux, E.; Forest, B.; Riou, L.; Lacotte, N.; Vouyovitch Van Schoors, L.; Davies, P., Polymer Engineering and Science, 2011

Abstract Aramid fibers are today proposed in ropes and cables for marine applications. As these highly crystalline materials are loaded in tension for a longer period in seawater, their long‐term mechanical behavior has to be understood. However, the response is time‐dependent and exhibits a ...

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