Results 221 to 230 of about 1,400,800 (285)
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2001
Abstract The chemical composition of Kevlar aramid fiber is poly para-phenyleneterephthalamide. Para-aramid fibers belong to a class of materials known as liquid crystalline polymers. This article discusses the manufacture of aramid fibers and the major fiber forms, such as continuous filament yarns, rovings, woven fabrics, discontinuous
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Abstract The chemical composition of Kevlar aramid fiber is poly para-phenyleneterephthalamide. Para-aramid fibers belong to a class of materials known as liquid crystalline polymers. This article discusses the manufacture of aramid fibers and the major fiber forms, such as continuous filament yarns, rovings, woven fabrics, discontinuous
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Strain birefringence of Kevlar aramid fibers
Journal of Applied Polymer Science, 1987AbstractWe have measured the strain birefringence of Kevlar aramid fibers under static loading via a spectrophotometric method. At very low strain rates, the birefringence of Kevlar fibers increases markedly with increasing strain. On initial straining, the birefringence increases even at relatively constant modulus.
H. H. Yang, M. P. Chouinard, W. J. Lingg
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Aramid Fiber Composites for General Engineering
JOM, 1986This paper focuses on the para-aramid, poly p-phenyleneterephthalamide, its basic structure/property relationships, its engineering properties, and applications in fiber-reinforced composites. Para-aramid technology will continue to advance toward achieving fiber tensile properties closer to theoretical.
D. Tanner +2 more
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Elastomeric polyurethanes reinforced with aramid fibers
Journal of Applied Polymer Science, 1989AbstractThermolplastic polyurethane is a relatively new development in the elastomers field, combining elastomeric behavior with thermoplastic processing characteristics. Thus, high production rate and reduced scrap can be achieved but, increased versatility for the incorporation of additives is also possible.
A. G. Andreopoulos +2 more
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Dyeing Research of Aramid Fiber-Nomex
Advanced Materials Research, 2011Nomex has very high crystallization degree, the mindset degrees and chemical stability, which makes its dyeing highly difficult. In the presented investigation special auxiliaries were employed to enlarge Nomex molecular gaps in order to lower the Van der Waals forces between the members and make it much easier for the dyestuffs to penetrate the fiber.
Yan Jun Tan, Yan E Yu
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Properties of basalt/aramid fiber reinforced hybrid composites compared to carbon fiber composites
Polymer Composites, 2023O. Çelik, A. Yaşar, Berkay Karaçor
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Abstract This article examines the factors that influence the development of high-performance aramid fibers and other synthetic high-performance fibers. It highlights the importance of suitable monomers, solvents, and fiber processing conditions.
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Kevlar and Other Aramid Fibers
2018The name poly-paraphenylene terephthalamide, doesn’t exactly roll of the tongue, which is presumably why Dupont gave it the much cooler commercial name of Kevlar. Kevlar was invented by Stephanie Louise Kwolek (1923–2014) and Paul Wintrop Morgan (1911–1992) at E. I. du Pont de Nemours and Company for which US patent 3287323A “Process for the production
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