High strength UHMWPE fabric bullet proof materials

UHMWPE UD fabric can promptly distribute energy of a projectile on a large area so as to reduce depth of concavity of materials so that nonpenetration injury can be therefore reduced. Besides, this fabric can absorb shock and block smashed projectiles to prevent secondary injury.
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The three major high-performance fibers in the world today are: aramid fiber, carbon fiber, and ultra-high molecular weight polyethylene fiber. At present, aramid fiber is only produced in small quantities in China due to technical problems; carbon fiber is still in the test and primary production stage, and the product can only be used in resistant Since the breakthrough of key production technology in 1994, ultra-high molecular weight polyethylene fibers have formed a number of industrialized production bases of ultra-high molecular weight polyethylene fibers.Advantage 1.light texture The density of UHMWPE is only 0.97-0.98g/cm3, and it can float on the water. 2.Excellent mechanical properties The specific strength is more than ten times that of steel wire of the same section ·Specific modulus is second only to special carbon fiber Low elongation at break, outstanding impact and cut resistance ·High wear resistance and self-lubricating Fatigue performance is the strongest among existing fibers and has a long service life 3.low water absorption Drying is generally not required before processing 4.Strong weather resistance It has excellent anti-ultraviolet ability. After 1500h of sun exposure, the strength is still more than 80% preserved. It can shield radiation, so it can be used as a shielding plate for nuclear power plants 5.Hygienic and non-toxic Can be used in contact with food and drugs Disadvantage 1.poor heat resistance The melting point of ordinary polyethylene is roughly the same as that of ordinary polyethylene, which is about 140 °C. 2.High processing difficulty Ultra-high molecular weight polyethylene has extremely poor fluidity and a melt index of almost 0, requiring special equipment for processing. 3.Low stiffness and hardness. But this shortcoming can be improved by modification
Hard weft free cloth

brand

The raw materials

type

The surface density

(g/m squared)

width

(m)

The length of the

(m)

Product features

Bullet-proof performance

Protection level

Surface density (kg/m²)

EH131

UHMWPE fiber

2UD

120 + 10

1.2/1.6

 200 Excellent bulletproof performance, good rigidity, light weight

NIJ Ⅲ (M80)

13.5 (Platen)

GA141 level 3

5.4 (Pressure plate)

AH101

Aramid fibers

4UD

240 + 10

1.2/1.6

 100 Excellent bulletproof performance and light weight

GA141 level 3

5.56 (Press plate)

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