Abstract: As few studies are available on the stab performance of aramid UD cloth, and the fact that the wear comfortableness of stab-resistant body armor is poor, starting with the stab-resistance of the adhesive film, which is applied to weaving the aramid UD cloth, and post-processing of the aramid UD cloth, pioneering in the use of aramid UD cloth in the field of stab-resistant. The adhesive C with a certain hardness and better matching with aramid fiber, is the final formula. By using the quasi-static stab experiment to measure the piercing force of the different glue content, it is confirmed that the content of glue is 24%~27%, the piercing force of aramid UD cloth is the best, and the single layer density is 225 g/m². By using the dynamic puncture performance, the aramid UD cloth overlying to 34 layers (the single layer density is 225 g/m²), adding one layer of 4.5 mm EVA (the density is 200 g/m²) as the buffer layer, the stab performance meets the standard requirements of 《GA 68—2008》, within the temperature range from -20 ℃ to 55 ℃. The density of the protective layer (with the buffer layer) is only 7.85 kg/m², with a high softness, can be folded to 180 degrees at any angle.

Key words: aramid, UD, stab-resistant, adhesive