Spiders don’t just spin webs—they engineer them. By stretching their silk as they spin, spiders strengthen the fibers at the ...

Fibers are materials prepared with a large length/cross section ... and an elongation to fracture of 1.8%. Kevlar 49, has a density of 1.45 Mg.m-3, a Young's modulus of 125 GPa, an UTS of 3.2 GPa, and ...

That discovery made way for Kwolek’s invention of industrial fibers that today protect and save thousands of lives. Most notable among these is Kevlar ®, a heat-resistant material that’s five times ...

Twaron and Kevlar are brand names for aramid fibers, which are strong as steel yet much lighter. They are used to make bulletproof vests, strong ropes, and high-performance car tires, for example.

A plastic coating covers the cladding to protect the glass surface. Cables also include fibers of Kevlar and/or steel wires for strength and an outer sheath of plastic or Teflon for protection.