Mar 17, 2010

Posted by in Science | 0 Comments

What is Kevlar?

Kevlar is a synthetic material called a polymer which was discovered by Stephanie Kwolek who was working at the DuPont Laboratories at the time.  You would probably know it best from its use in Kevlar Motorbike Armour and Kevlar Bullet Proof vests which are products that take advantage of the high toughness of Kevlar. It has become such a successful and highly used material due to its properties, which include:

  • High Cut Resistance
  • High Tensile Strength at Low Weight
  • Structural Rigidity
  • Flame Resistant, Self-Extinguishing
  • Low Thermal Shrinkage
  • Low Electrical Conductivity
  • High Chemical Resistance
  • High Toughness (Work-To-Break)
  • Excellent Dimensional Stability

These properties mean that it is lightweight, keeps its shape and is very resistant to tearing and punctures.  Due to these features, Kevlar is used in the manufacturing of bike, plane, truck and racing car tyres, as well as other products such as tennis rackets, Kayaks, canoes and skis.

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