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Aramids - a group of polymers, a type of fiber-forming polyamides. Their characteristic feature is the presence in their main chains aromatic groups. Some aramids contain only aromatic groups between amide bonds, while others contain aliphatic moieties. The more aromatic groups it contains, the greater the mechanical, thermal and fire resistance, but also the solubility, which increases the difficulty of processing.

Aramids as fibers have much higher tensile strength than other polyamides. This is due to two facts:

Aramid fibers produce bulletproof vests, protective layers for firefighters, aviators, rally drivers and astronauts. In addition, the rods that make up the masts of yachts, ski poles and other elements that require high mechanical resistance are manufactured from the aramids. Finally, these polymers are used in the form of thin films - which are then pressed between other materials to form laminates with high mechanical strength.

Aramid was invented in 1965 by Stephanie Kwolek of DuPont.

The most famous aramids are:

wiki

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