Kevlar is a new product of aramid fiber material, formerly known as "poly (p-phenylene terephthalamide)". This new material has low density, high strength, good toughness, high temperature resistance and easy processing and molding. Its strength is five times that of the same quality steel, but its density is only one fifth of that of steel.

Mainly used in tanks, armored vehicles, body armor, nuclear-powered aircraft carriers and guided missile destroyers.

The appearance of anti-tank weapons has prompted people to improve the armor performance of tanks and armored vehicles. Generally, to improve the protective performance of tanks and armored vehicles, it is necessary to increase the thickness of metal armor, which will inevitably affect its flexibility and maneuverability. The appearance of Kevlar material has solved this problem, and the protective performance of tanks and armored vehicles has been improved to a new stage. ?

Compared with FRP, under the same protection, the weight of Kevlar can be reduced by half, and the toughness of Kevlar laminate is three times that of steel, and it can withstand multiple impacts.

Extended data:

Characteristics of Kevlar fiber;

1, permanent heat resistance and flame retardancy, limiting oxygen index (Loi) greater than 28.

2. Permanent antistatic property.

3, permanent resistance to acid and alkali and organic solvent erosion.

4, high strength, high wear resistance, high tear resistance.

5. In case of fire, no liquid drops or toxic gases are produced.

6. When the cloth surface burns, the cloth surface is thickened, which enhances the sealing performance and will not break.

Baidu encyclopedia-Kevlar