Characteristics of aramid fiber

Characteristics of aramid fiber:
The fiber will not burn, smoke or melt when exposed to fire and heat;
Aramid fiber is non-toxic and non-explosive;
Its thermal decomposition temperature is 430-450 degrees;
The strength of aramid fiber begins to decrease gradually when it is heated above 150 degrees;
Kevlar only gets stronger when frozen, it is able to withstand low temperatures (up to -200 degrees);
This material is an electrical insulator.
In addition, the aramid fabric is soft, moisture-wicking, and breathable, making it quite comfortable to use. Admittedly, this does not apply to clothing designed to work in open flames and heat. For added heat resistance, the aramid is coated with aluminum. The material of this fiber reliably protects against powerful heat radiation, contact with hot surfaces up to 500 degrees and hot metal splashes.

It should also be added that the material is light - a meter of fabric weighs 30-60 grams, which isn't cheap, but its excellent protective properties justify the expense. Protective materials are slightly less expensive reinforced with aramid thread, which makes them resistant to tearing and abrasion. This fabric is used in protective liners for work and sportswear, gloves and wear-resistant shoe inserts.

Of course, aramid fiber also has weaknesses-poor compression resistance. Its compressive strength is ten times its tensile strength. Therefore, aramid fiber is not suitable for the role of building materials. But he has plenty of work in other industries: body armor, tire cord, panels and fenders for fighter jets, Formula 1 cars, gas tanks for ships and yachts. The bridges are suspended on strong ropes and cables made of aramid and will not rust. Fire-resistant, durable firefighting suits and gloves are made from it. This is not a complete list.

application
Aramid fibers are used in those industries where abrasion resistance and thermal stability, low structural stiffness and maximum lightness as well as excellent strength at low weight are of utmost importance. It is therefore no surprise that this material is used in the manufacture of personal protective equipment, especially bulletproof vests, helmets.