Detailed Explanation of Bulletproof Vest Materials

As a professional bulletproof vest manufacturer in the industry, KIANG uses a variety of high-performance materials, including aramid, high-performance polyethylene, ceramic materials and composite materials. The appearance of body armor vests can be customized by customers and free samples are provided.

Aramid

Aramid is a high-performance fiber, and the most well-known product is DuPont's Kevlar®.

High strength and low weight: Aramid fiber is five times stronger than steel, but only one-fifth of its weight, making it very suitable for protective equipment that requires high strength and lightness.

Tensile performance: Aramid fiber has extremely high tensile strength and toughness, and can effectively absorb and disperse impact.

High temperature resistance: Aramid can still maintain its physical properties at high temperatures, with a ignition point of more than 500°C.

Chemical corrosion resistance: Aramid has good resistance to most chemicals and is suitable for various harsh environments.

Ultra High Molecular Weight Polyethylene (UHMWPE)

UHMWPE is a thermoplastic known for its high molecular weight. Representative brands include Spectra® and Dyneema®.

Ultra-high strength: UHMWPE fiber is ten times stronger than steel, but has a very low density, making it a very lightweight protective material.

Excellent impact resistance: UHMWPE has extremely high energy absorption capacity and can effectively resist the impact of bullets and fragments.

Wear resistance: UHMWPE has extremely strong wear resistance and is suitable for long-term use.

Chemical and water resistance: UHMWPE fiber has good resistance to most chemicals and moisture and is not easily affected by environmental factors.

Ceramic materials

Ceramic materials (such as silicon carbide SiC and aluminum oxide Al2O3) are often combined with composite materials to enhance protective performance.

High hardness: Ceramic materials have very high hardness and can effectively destroy and disperse the kinetic energy of bullets.

Penetration resistance: Ceramic plates can destroy the shape of bullets and slow down their speed, thereby enhancing the overall protective effect.

Heavier: Compared with aramid and UHMWPE, ceramic materials are relatively heavy, so they are often combined with other lightweight materials to balance weight and protective performance.

Composite materials

Composite materials are usually made of a combination of the above materials to give full play to their respective advantages.

Ceramic aramid composite: A ceramic plate is added to the aramid layer to provide higher ballistic performance.

Ceramic UHMWPE composite: The ceramic plate is combined with UHMWPE to ensure high-strength protection while maintaining a light weight.

Considerations for selecting bulletproof vest materials

Protection level: According to the NIJ (National Institute of Justice) standard, bulletproof vests are divided into multiple levels (such as IIIA, III, IV), and different levels require different material combinations to meet protection requirements.

Comfort and flexibility: Wearing comfort and flexibility are very important for users who wear them for a long time, and it is usually necessary to find a balance between protection performance and weight.

Use environment: Different environments (such as high temperature, high humidity, chemical pollution, etc.) have different requirements for materials, and suitable materials need to be selected according to the specific use environment.