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Technical introduction of product lines:

Tianjin Armorus Textiles Co., LTD supplies body armors mostly made of two types of industrial fiber: Aramid fiber and Polyethylene fiber. Since the imported Aramid fiber is not sufficiently competitively availed of now from oversea manufacturers, we are mainly adopting the domestic fiber - High Tenacity High Modulus Polyethylene fiber at present for our body armor products.

High Tenacity High Modulus Polyethylene fiber, also called the Ultra High Molecular Weight Polyethylene (UHMWPE) fiber, is a kind of high technology high performance fiber developed in last decades. Compared with the other two high technology fibers in current world (carbon fiber and Armaid fiber), Polyethylene fiber has the highest tenacity because of its high molecular weight, high interlinking, high degree of orientation and high Crystallionity. Its tenacity is 14 times higher than good quality steel, and 10 times higher than normal chemical fiber; this fiber also characterizes as low density, high modulus, UV resistance, corrosion resistance, outstanding anti-impact and anti-incision, etc. It is now widely used in national defense weaponry, such as soft bulletproof vest, light weight bulletproof helmet, armor plate, stab-proof vest, etc. Other applications are composite material for aviation and ocean shipping, rope for navy vessel, tow net for ocean halieutics, sports equipment and construction reinforcement composite material, etc.

Below are the properties contrasts of the polyethylene fiber with other industrial fibers.

 

The contrast of specific properties of main industrial fibers

Mechanical performance

 

 

Types of fibers

Density

G/cm3

Strength

Modulus

Elongation at break

N/dtex

G/d

Gpa

N/dtex

G/d

Gpa

%

UHMWPE

Aramid fiber

Carbon-fiberhigh tenacity

Carbon-fiberhigh modulus

E-glass fiber

S-glass fiber

PA fiber

PET fiber

PP fiber

Steel fiber

0.97

1.44

1.78

1.85

2.60

2.50

1.14

1.38

0.90

786

3.1

2.05

1.9

1.2

1.35

1.85

0.8

0.8

0.6

0.2

35

23

22

14

15

21

9

9

7

2

3.0

2.9

3.4

2.3

3.5

4.6

0.9

1.1

0.6

1.77

97

41

134

210

28

34

5

10

6

25

1100

470

1500

2400

315

385

56

110

70

225

95

60

240

390

72

86

6

14

6

200

3-4.5

3.6

1.4

0.5

4.8

5.2

20

13

20

1.8

The contrast of light resistance

Types of fibers

Testing method of light resistance

The maintaining rate of strength

Aramid fiber

exposed under the ray for1500 hours

30%

UHMWPE

exposed under the ray for1500 hours

90%

The contrast of processing performance among three high performance fibers

       Types of fibers

 

Processing

performance

PE fiber

Aramid fiber 29

Aramid fiber 49

Carbon fiber

(high tenacity)

Carbon fiber

(high modulus)

Abrasion proof

Resistance to bending

Joint tenacity

Cyclization tenacity

110x103

240x103

10-15

12-18

9.5x103

3.7x103

6-7

10-12

5.7x103

3.7x103

6-7

10-12

20

5

0

0.7

120

2

0

0.1


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