Ultra-high molecular weight polyethylene fiber - also known as high strength and high modulus polyethylene fiber
English abbreviation: UHMWPE
Ultra-high molecular weight polyethylene fiber is the fiber with very high specific strength (strength/density) and specific modulus (modulus/density) in the world. The specific strength is 15 times that of high quality steel wire and nearly 10 times higher than that of ordinary chemical fiber.
Physical properties of high strength polyethylene fiber
|
No.
|
Item
|
Indicators
|
|
1
|
Intensity
|
28～40 g/d
|
|
2
|
Modulus
|
1000～1300 g/d
|
|
3
|
Density
|
0.97 g/cm³
|
|
4
|
Elongation at break
|
＜ 3％
|
|
5
|
Total denier
|
400 ～ 2400D
|
|
6
|
Filament number
|
1.5 ～ 4.0D
|
|
7
|
Hygroscopicity
|
None
|
|
8
|
Boiling water shrinkage
|
＜ 1％
|
|
9
|
Hydrolysising properties
|
None
|
|
10
|
Acid resistance
|
Excellent
|
|
11
|
Alkali resistance
|
Excellent
|
|
12
|
Resistance to other chemicals
|
Excellent
|
|
13
|
UV resistance
|
Good
|
|
14
|
Melting point
|
144 ～ 155℃
|
|
15
|
Thermal conductivity (along the fiber axis)
|
20w(mk)
|
|
16
|
Coefficient of heat transfer
|
-12×10 -6 K
|
|
17
|
Resistance
|
＞ 10 14 Ω
|
|
18
|
Dielectric strength
|
900KV/CM
|
|
19
|
Dielectric constant (22℃, 10 GHz)
|
2.25
|
|
20
|
Loss factor
|
2×10 -4
|
|
21
|
Melting denaturation (22℃, 20% LOAD)
|
1×10 -2 %
|
High strength polyethylene fiber product chain
