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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

Kevlar

By: Brianna Flores

MEEN 3344

what is kevlar
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
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.
properties
Properties
  • Low thermal shrinkage
  • Lightweight
  • Flexible
  • Comfortable
  • Low electrical conductivity
  • High toughness
  • High cut-resistance
  • High chemical resistance
  • Flame resistance
slide5
Uses
  • Bulletproof vest
  • Sports equipment
  • Automotive parts
  • Tires
  • Fiber-Optic and Electromechanical Cables
  • Industrial and Marine Utility Ropes
  • Fire resistant mattress material
references
References
  • http://www.infinitycomposites.com/cgi-bin/infinitydb.pl?catcarkev
  • http://www.dupont.com/kevlar/whatiskevlar.html