The most prominent properties of the Para Aramid are its high strength, high modulus and heat resistance. For Para Aramid, ratio of weight/strength is 6 times of steel wire, 3 times of glass fiber and twice of high-strength nylon. Ratio of weight / modulus is 3 times of steel wire, twice of glass fiber and 10 times of high strength nylon. Para Aramid can keep 95% strength after working for 500 hours at 160℃ and keeps 75% strength after working for 100 hours at 200℃. Para Aramid is often used as a special structure material with properties of light weight, heat-resistant.
Physical Properties
Item | Unit | Index |
Monofilament | dpf | 1.5-2.5 |
CV | % | ±2.0 |
Density | g/cm3 | 1.44 |
Moisture Regain (1) | % | 4.5 |
(1) 24℃, 55% RH | ASTM D885 (Ref.) GB/T 19975-2005 | |
Strength | cN/dtex | ≥20.0 |
Initial modulus | cN/dtex | ≥490 |
Elongation | % | 2-4 |
Shrinkage | ||
(Water) 100℃ | % | <0.1 |
(Air) 177℃ | % | <0.1 |
Heat Shrinkable stress | ||
(Air) 177℃ | cN/dtex | <0.88 |
25℃ | J/(kg x K) | 1420 |
100℃ | J/(kg x K) | 2010 |
180℃ | J/(kg x K) | 2515 |
LOI | % | 29 |
Decomposition temperature | ℃ | 550 |
Long-term use temperature range (Air) | ℃ | 149-180 |
Heat of combustion | ℃ | 35x106 |
CONSULT:PARA ARAMID SEWING THREAD