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KEVLAR. What is it Properties Uses. What is it. 1965, Dupont Stehanie Kowlek & Herbert Blades Aromatic polyamide Symmetrical radial orientation. Properties. Available grades: Kevlar 29, Kevlar 49, and Kevlar 149. Dadvantages High Tensile Strength at Low Weight

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Presentation Transcript
kevlar

KEVLAR

What is it

Properties

Uses

what is it
What is it
  • 1965, Dupont
  • Stehanie Kowlek & Herbert Blades
  • Aromatic polyamide
  • Symmetrical radial orientation
properties
Properties

Available grades: Kevlar 29, Kevlar 49, and Kevlar 149

  • Dadvantages
  • High Tensile Strength at Low Weight
  • 5X stronger than stronger than steel (equil weight basis)
  • Low Elongation to Break High Modulus
  • (Structural Rigidity)
  • Low Electrical Conductivity
  • High Chemical Resistance
  • Low Thermal Shrinkage
  • High Toughness (Work-To-Break)
  • Excellent Dimensional Stability
  • High Cut Resistance
  • Flame Resistant, Self-Extinguishing
  • Impact resistant
  • Disadvantages
  • Fibers absorb moisture
  • Poor compressive properties
  • Difficult to cut
slide4
Uses
  • Performance Apparel
  • Adhesives and Sealants
  • Belts and Hoses
  • CompositesFiber-Optic and ElectroMechanical Cables
  • Friction Products and GasketsProtective ApparelTires
slide5
Uses
  • Ropes and Cables
slide6
Uses
  • Ballistics&
  • Defense

Protection Level:

Colors: 

Sizes: 

referances
Referances
  • From: http://www.lbl.gov/MicroWorlds/Kevlar/KevlarClue1.html 
  • From: http://www.chem.vt.edu/RVGS/ACT/Questions_00.html  From: http://www.ideafinder.com/history/inventions/story082.htm 
  • From http://www.spylife.com
  • http://denbrook.crosswinds.net/Motorcycles/KevlarClutch