Traditional bulletproof vests
Traditional bulletproof vests are mainly composed of a cover and a bulletproof layer. The cover is mainly made of synthetic fabric, which is lightweight and mainly serves to cover and protect the bulletproof layer. The bulletproof layer is made of hard and soft materials such as metal, fiberglass, ceramic, nylon, Kevlar (aramid), etc. Due to the large weight of metal, fiberglass, ceramic, etc., it seriously affects the convenience of bulletproof vests and affects personal activities. So researchers have conducted research on the materials of bulletproof layers and made great progress.
New type of bulletproof vest
The main material used in the new bulletproof vest is ultra-high molecular weight polyethylene fiber (UHMWPE), which is currently the fiber with the highest specific strength and modulus in the world, with a molecular weight ranging from 1 million to 5 million.