PE can indeed be made into stab proof vests, but the fiber weaving method for bulletproof and stab proof is different. Therefore, bulletproof vests are not stab proof, and stab proof vests are also not bulletproof.
Bulletproof Vests Cannot Be Stab Proof?
The bulletproof material UHMWPE fiber can be cut by cutting tools.
"What?! The strength of bulletproof fiber can withstand bullets, but it can still be cut off?" If it cannot be cut, how can it be made into the shape of a bulletproof vest lining? We need to know that tension and shear are two different things.
The common PE bulletproof layer is soft, can PE be made hard? The answer is certainly yes. PE is pressed into boards through certain processes, and in addition to being used as a hard insert for bulletproof vests, it is mainly used in attack aircraft and bulletproof vehicles that require weight. In addition, the hard plug board can also serve as an anti prick function.
What?! How could a bulletproof vest not be stab proof? Don't you have a PE stab proof vest?
That's right, "bulletproof but not stabproof, stabproof but not bulletproof." PE can indeed be made into stab proof vests, but the fiber weaving method for bulletproof and stab proof is different. Therefore, bulletproof vests are not stab proof, and stab proof vests are also not bulletproof.
Can it be both bulletproof and stab proof? By combining two weaving methods and alternately weaving layers of bulletproof and stab proof layers, a bulletproof and stab proof vest can be made.
This bulletproof and stab proof suit not only effectively absorbs and dissipates the kinetic energy of warheads and fragments, prevents penetration, and reduces incomplete penetrating blunt injuries, but also has excellent stab proof performance. With 24J kinetic energy, it effectively sprints through the protective suit, preventing it from being penetrated. It has the characteristics of light weight, comfortable wearing, excellent bulletproof and puncture proof performance, as well as waterproof, moisture-proof, and UV resistant. The flexible long chain structure in high-strength and high modulus polyethylene fibers allows the impact energy of bullets to be quickly dispersed over a larger area, thereby reducing the depth of the vest's indentation and reducing non penetrating injuries.