Ultra-high Molecular Weight Polyethylene (UHMWPE for short) Fiber, alsocalled High Strength and High Modulus Polyethylene Fiber, is currently the highest strength and modulus fiber all over the world. UHMWPE fiber made of 1 million ~ 5 million molecular weight polyethylene, ranks among World Three High Performance Fibers, with nomex Fiber, carbon fiber.
Physical Properties of UHMWPE fiber
Â
No.
Physical Properties
Index
1
Density
0.97g/cm3
2
Moisture regain
NO
3
Hot water shrinkage
<1%
4
Hydrophilicity
No
5
Acid resistance
Fine
6
Alkali resistance
Fine
7
Resistance to many chemical reagents
Fine
8
Anti-UV
Durable
9
Melting point
135-145°C
10
Thermal conductivity (along fiber axis)
20w/mk
11
Coefficient of thermal expansion
-12 x 106 /K
12
Resistance
>1014Ω
13
Dielectric constant (22°C,10GHhz)
2.25
14
Dissipation factor
2 x 10-4
15
Dielectric strength
900kV/cm
16
Creep deformation (22°C, 20%Load)
1 x 10 -2% Per Day
 The application prospect of UHMWPE fiber
Because of its numerous excellent characteristics, UHMWPE fiber shows great advantage in high performance fiber market, from mooring ropes of offshore oil field to high performance lightweight composite materials. It plays a vital role in modern war and territories such as aviation, aerospace, maritime defense equipments.
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