Bullet-proof glass is a specially processed composite of glass and high quality engineering plastics, usually transparent materials such as PVB polycarbonate thermoplastics. It has the appearance of ordinary glass and the act of transmitting light, providing some protection against small arms fire.
Bearing layer: this layer is the first to bear the impact and rupture, generally using thick, high strength glass, can destroy the warhead or change the shape of the warhead, so that it lost the ability to continue forward.
Transition layer: generally used organic adhesive materials, strong adhesion. Good light resistance, can absorb part of the impact, change the direction of the bullet. A very strong and transparent chemical film is sandwiched between the laminated glass. It can not only effectively prevent the firing of bullets, but also has the properties of anti-surge impact, anti-explosion, anti-seismic and no crack after impact.
Safety protection layer: this layer adopts high-strength glass or high-strength transparent organic material, which has good elasticity and toughness, can absorb most of the impact energy, and ensure that the bullet cannot pass through this layer.
The most important performance index of bulletproof glass is bulletproof ability. The indicators of bulletproof capability are measured from two aspects, one is the security capability, the other is the killing capability of the gun being protected.