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Kevlar® Fiber
 Kevlar® is a material formed by combining para-
phenylenediamine and terephthaloyl chloride. Aromatic
poly...
Chemical Reaction
 The reaction of 1,4-phenylene-diamine (para-
phenylenediamine) with terephthaloyl chloride yielding
Ke...
Advantages
 High tensile strength at low weight
 Flame resistant, self extinguishing
 Low electrical conductivity
 Hig...
Disadvantages
1. Despite its strength and resilience, Kevlar also has some
disadvantages which limits its efficiency.
2. K...
Applications in Military
 Vehicle Armor
 Vehicle frame and body protection .
 protects aircraft and helicopter crews.
...
Applications in Military
Vehicle Armor:
Applications in Military
Military Helmets
Applications in Military
Applications in Military
Body Armor
Applications in Military
Tactical Vest
Applications in Military
Applications in Military
K9 units protection
Personal security
How it works
HOW IT WORKS?
When a bullet strikes body armor, it is caught in a
“web” of very strong fibers. These fibers absorb and
dis...
CONTINUE
 Effect of Bullet Hit
Everyday Kevlar
Cell phone back covers:
Everyday Kevlar
 Pants and apparel
Everyday Kevlar
 Motorcycle helmets
and gloves
Everyday Kevlar
 Riding protection
Everyday Kevlar
Personal Electronics
Everyday Kevlar
Reinforcement material for some car and
bicycle tyres and climbing ropes.
Sports
Sporting goods:
Everyday Kevlar
Fire Resistant Mattresses and vests:
Any
Questions ???
kevlar
kevlar
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kevlar

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Kevlar was invented by Stephanie Kwolek while working for DuPont in 1965 but commercial use began in 1971
Kevlar® is a material formed by combining para- phenylenediamine and terephthaloyl chloride. Aromatic polyamide (aramid) threads are the result.
Kevlar fibers quickly absorb moisture, meaning it is more sensitive to its environment than other materials.

Publicado en: Ingeniería
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kevlar

  1. 1. Kevlar® Fiber  Kevlar® is a material formed by combining para- phenylenediamine and terephthaloyl chloride. Aromatic polyamide (aramid) threads are the result. Kevlar was invented by Stephanie Kwolek while working for DuPont in 1965 but commercial use began in 1971 .
  2. 2. Chemical Reaction  The reaction of 1,4-phenylene-diamine (para- phenylenediamine) with terephthaloyl chloride yielding Kevlar.
  3. 3. Advantages  High tensile strength at low weight  Flame resistant, self extinguishing  Low electrical conductivity  High chemical resistance  Excellent dimensional stability  Low thermal shrinkage  Low elongation to break  High toughness (work-to-break)  High cut resistance  High modulus (structural rigidity)
  4. 4. Disadvantages 1. Despite its strength and resilience, Kevlar also has some disadvantages which limits its efficiency. 2. Kevlar fibers quickly absorb moisture, meaning it is more sensitive to its environment than other materials. 3. Although Kevlar is strong its ability to cope with compression is fairly poor. It can be difficult to cut. Specially made scissors are usually required to cut the fabric
  5. 5. Applications in Military  Vehicle Armor  Vehicle frame and body protection .  protects aircraft and helicopter crews.  Military Helmets  Absorb 20% more kinetic energy for Ground Troops  Improve mobility and fatigue of the solders because of low weight.  Body Armor  Improved Outer Tactical Vest, ballistic, throat and groin protectors, anti-mine boots and chaps.
  6. 6. Applications in Military Vehicle Armor:
  7. 7. Applications in Military Military Helmets
  8. 8. Applications in Military
  9. 9. Applications in Military Body Armor
  10. 10. Applications in Military Tactical Vest
  11. 11. Applications in Military
  12. 12. Applications in Military K9 units protection
  13. 13. Personal security
  14. 14. How it works
  15. 15. HOW IT WORKS? When a bullet strikes body armor, it is caught in a “web” of very strong fibers. These fibers absorb and disperse the impact energy that is transmitted to the bullet proof vest from the bullet, causing the bullet to deform or “mushroom.”
  16. 16. CONTINUE  Effect of Bullet Hit
  17. 17. Everyday Kevlar Cell phone back covers:
  18. 18. Everyday Kevlar  Pants and apparel
  19. 19. Everyday Kevlar  Motorcycle helmets and gloves
  20. 20. Everyday Kevlar  Riding protection
  21. 21. Everyday Kevlar Personal Electronics
  22. 22. Everyday Kevlar Reinforcement material for some car and bicycle tyres and climbing ropes.
  23. 23. Sports Sporting goods:
  24. 24. Everyday Kevlar Fire Resistant Mattresses and vests:
  25. 25. Any Questions ???

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