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Kevlar (para-aramid) [2] is a strong, heat-resistant synthetic fiber, related to other aramids such as Nomex and Technora. Developed by Stephanie Kwolek at DuPont in 1965, [ 3 ] [ 2 ] [ 4 ] the high-strength material was first used commercially in the early 1970s as a replacement for steel in racing tires.
Ballistic nylon (until the 1970s) or Kevlar, Twaron [92] or Spectra (a competitor for Kevlar) or polyethylene fiber could be used to manufacture bullet proof vests. The vests of the time were made of ballistic nylon & supplemented by plates of fiber-glass, steel, ceramic, titanium, Doron & composites of ceramic and fiberglass, the last being ...
[6] [1] Shubin received a $5 million grant to research the use of the fabric in bullet-proof vests. In 1975, the federal government distributed 5,000 Kevlar vests to 15 police departments. In the first year of deployment, two police officers wearing the vests were shot with handguns and two others were attacked with knives.
Para-aramids are used in many high-tech applications, such as aerospace and military applications, for "bullet-proof" body armor fabric. Both meta-aramid and para-aramid fiber can be used to make aramid paper. Aramid paper is used as electrical insulation materials and construction materials to make honeycomb core.
Fabric panel (level II protection) in the back is made of 30 layers of TSVM-2 Kevlar-like material and provides protection against bullets from TT pistol (cartridge 57-N-134S) and PMM (cartridge 7N16) from 5 meters, has increased anti-fragmentation resistance (fragment weighing 1 g at a speed of 600 m/s, 50 %,). [1] [5] Weight is 4 kg. [2]
Bullet-resistant materials (also called ballistic materials or, equivalently, anti-ballistic materials) are usually rigid, but may be supple. They may be complex, such as Kevlar, UHMWPE, Lexan, or carbon fiber composite materials, or basic and simple, such as steel or titanium. Bullet resistant materials are often used in law enforcement and ...
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