description Kevlar Overview
Kevlar is a para-aramid synthetic fiber developed by DuPont. Its exceptional strength-to-weight ratio, approximately five times greater than steel, makes it ideal for protective applications. Primarily used in ballistic armor, high-performance tires, and ropes, Kevlar safeguards individuals and equipment against impact and abrasion. It’s commonly employed by law enforcement, military personnel, and industries requiring robust materials.
insights Ranking position
Kevlar ranks #7 of 189 in the Textile ranking, behind Cashmere, ahead of Pashmina.
help Kevlar FAQ
How can Kevlar stop a bullet if it is a woven fabric?
Layers of tightly woven Kevlar spread a projectile's energy across many extremely strong para-aramid fibers, slowing and deforming it. Soft body armor is designed for particular handgun threats, while rifle protection generally requires rigid plates made from ceramic, polyethylene, or other materials.
Who invented Kevlar, and what was it originally meant to replace?
DuPont chemist Stephanie Kwolek discovered the unusual liquid-crystalline polymer behind Kevlar in 1965. Her team was investigating lightweight, strong fibers that could reinforce tires as automobiles moved toward radial construction.
Does Kevlar lose strength when exposed to sunlight or water?
Ultraviolet light can degrade Kevlar, which is why products normally protect the fibers beneath covers, coatings, or other materials. Moisture can also affect performance temporarily, although finished armor systems are engineered and tested to limit exposure.
Is Kevlar the same material as Nomex?
No. Kevlar is a para-aramid valued primarily for tensile strength, while DuPont's Nomex is a meta-aramid designed chiefly for heat and flame resistance.
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