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Kevlar

Kevlar. By: Brianna Flores MEEN 3344. What is Kevlar?. Manmade organic fibers were created in 1965 by two research scientist, Stephanie Kwolek and Herbert Blades from DuPont. Has 5 times the strength-to-weight ratio of Steel. Structure. Crystalline polymers

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Kevlar

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  1. Kevlar By: Brianna Flores MEEN 3344

  2. What is Kevlar? • Manmade organic fibers were created in 1965 by two research scientist, Stephanie Kwolek and Herbert Blades from DuPont. • Has 5 times the strength-to-weight ratio of Steel.

  3. Structure • Crystalline polymers • Consists of long molecular chains from five to a million mers bonded together • Each segment is a chemical unit that contains 14 carbon atoms, 2 nitrogen atoms, 2 oxygen atoms and 10 hydrogen atoms.

  4. Properties • Low thermal shrinkage • Lightweight • Flexible • Comfortable • Low electrical conductivity • High toughness • High cut-resistance • High chemical resistance • Flame resistance

  5. Uses • Bulletproof vest • Sports equipment • Automotive parts • Tires • Fiber-Optic and Electromechanical Cables • Industrial and Marine Utility Ropes • Fire resistant mattress material

  6. References • http://www.infinitycomposites.com/cgi-bin/infinitydb.pl?catcarkev • http://www.dupont.com/kevlar/whatiskevlar.html

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