The brand name of a DuPont™ synthetic fabric that is clothlike in feel and is used in cold outdoor activities (e.g., by bicyclists and motorcyclists). In racing, the material of choice for NASCAR Winston Cup cars. KEVLAR® was chosen by NASCAR because of its durability, because it would hold up under problems on the race track. This material ensures that the nose piece holds its shape, even up to 200 mph. Any drastic changes in the shape of the nose piece will ultimately, and consequently, have a profound effect on the car's handling. It is also used in bullet-proof vests and tires. KEVLAR® is used in tires two different ways, for two different purposes: KEVLAR® beads are used on some high performance tires. Replacing the normal wire bead with KEVLAR® saves about 50 grams per tire. KEVLAR®-bead tires have the additional advantage of being foldable, making them popular as emergency spare tires with touring cyclists. KEVLAR®-bead tires are somewhat harder to mount on a rim, and are more likely to blow off than wire-bead tires. They work best on "hook edge" rims. KEVLAR®-belted tires have a layer of KEVLAR® under the tread surface, with the purpose of making the tire more resistant to punctures caused by small sharp objects, such as thorns and glass slivers. KEVLAR®-belted tires have slightly higher rolling resistance, price and weight than corresponding tires without the belt.

Dictionary of automotive terms. 2015.

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  • Kevlar — is the registered trademark for a light, strong para aramid synthetic fiber, related to other aramids such as Nomex and Technora. Developed at DuPont in 1965 by Stephanie Kwolek and Roberto Berendt,cite web… …   Wikipedia

  • kevlar — [ kɛvlar ] n. m. • 1972; nom déposé ♦ Technol. Résine aramide utilisée sous forme de fibre dans certains matériaux composites. Gilet pare balles, voile en kevlar. ● Kevlar nom masculin (nom déposé) Fibre aramide, caractérisée par son grand module …   Encyclopédie Universelle

  • Kevlar — Kevlar®   [ kef ], Handelsname für eine Aramidfaser (Aramide) mit hoher Zugfestigkeit und Biegsamkeit; dient als Verstärkermaterial bei der Reifenherstellung sowie in der Luft und Raumfahrtindustrie …   Universal-Lexikon

  • kevlar — KEVLÁR s.n. Material compozit foarte uşor, foarte rezistent la şoc şi la coroziune, neinflamabil, care nu permite propagarea fisurilor şi amortizează vibraţiile, folosit în aeronautică. – Denumire comercială. Trimis de catalin caba, 15.07.2004.… …   Dicționar Român

  • Kevlar — registered trademark (DuPont) for a synthetic fiber developed there c.1965 …   Etymology dictionary

  • kevlar — kèvlār m <G kevlára> DEFINICIJA umjetno sintetičko vlakno izuzetne čvrstoće; upotrebljava se u zrakoplovima, svemirskim brodovima ETIMOLOGIJA tvorničko ime proizvoda© …   Hrvatski jezični portal

  • Kevlar — [kev′lär΄] [arbitrary coinage] trademark for an aramid fiber used in making bulletproof vests, boat hulls, airplane parts, etc …   English World dictionary

  • Kevlar® — /kevˈlär/ noun A lightweight synthetic fibre of exceptionally high strength and heat resistance, used in aerospace, firefighting equipment, etc …   Useful english dictionary

  • Kevlar — Estructura química Kevlar. Resaltado: unidad monomérica. Punteado: Puentes de hidrógeno. El Kevlar® o poliparafenileno tereftalamida es una poliamida sintetizada por primera vez en 1965 por la química Stephanie Kwolek, quien trabajaba para DuPont …   Wikipedia Español

  • Kevlar — Le poly(p phénylènetéréphtalamide) (PPD T) est un polymère thermoplastique constitué de noyaux aromatiques séparés par des groupes amide. Il appartient à la famille des fibres d aramides. Le poly para phénylène téréphtalamide a été découvert et… …   Wikipédia en Français

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