Kevlar, a synthetic fiber made from para-aramids, is often used in composite materials. Kevlar-based composites are popular for applications that require high strength and stiffness, or low thermal conductivity. They can be used in place of alloys and composites in many material makings.

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Kevlar has many properties that make it attractive as a reinforcement in composites, including:

  • Low weight
  • Great toughness
  • Outstanding thermal stability
  • Excellent wear and friction resistance
  • Very low creep
  • Low thermal shrinkage
  • Flame-resistant and self-extinguishing
  • High chemical resistance
  • High tear resistance
  • Low electrical conductivity

Some examples of Kevlar-based composites include:

1. Kevlar/Carbon Fiber Twill

This hybrid combines the properties of both materials to deliver a high strength-to-weight ratio, impact resistance, abrasion resistance, and more.

2. Kevlar/CNT-Modified Epoxy Composites

This composite is made by dispersing 0.5 wt% CNTs in epoxy to increase the fracture toughness and damage sensing of Kevlar composites.

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