PBO Fiber (ZYLON®)
What is PBO (ZYLON®)？
PBO FIBER ZYLON®
ZYLON® consists of rigid rod chain molecules of poly(p-phenylene-2, 6-benzobisoxazole)(PBO).
ZYLON® fiber is a new high performance fiber developed by TOYOBO using the latest material science and state-of-the-art fiber technology.
Mechanical Property
Tensile Strength and Modulus
Flame Resistance and Thermal stability
Comparison with Other High-performance Fibers
| Tensile Strength | Tensile Modulus | Elongation at Break | Density | Moisture Regain | LoI | Heat Resistance* | |||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| cN/dtex | g/d | GPa | cN/dtex | g/d | GPa | % | g/cm³ | % | ℃ | ||
| ZYLON-AS | 37 | 42 | 5.8 | 1150 | 1300 | 180 | 3.5 | 1.54 | 2.0 | 68 | 650 |
| ZYLON-HM | 37 | 42 | 5.8 | 1720 | 2000 | 270 | 2.5 | 1.56 | 0.6 | 68 | 650 |
| p-Aramid | 19 | 22 | 2.8 | 750 | 850 | 109 | 2.4 | 1.45 | 4.5 | 29 | 550 |
| m-Aramid | 4.7 | 5.3 | 0.65 | 124 | 140 | 17 | 22 | 1.38 | 4.5 | 29 | 400 |
| Steel Fiber | 3.5 | 4 | 2.8 | 260 | 290 | 200 | 1.4 | 7.8 | 0 | – | – |
| Carbon Fiber | 20 | 23 | 3.5 | 1310 | 1480 | 230 | 1.5 | 1.76 | – | – | – |
| PBI | 2.7 | 3.1 | 0.4 | 40 | 45 | 5.6 | 30 | 1.4 | 15 | 41 | 550 |
| Polyester | 8 | 9 | 1.1 | 110 | 125 | 15 | 25 | 1.38 | 0.4 | 17 | 260 |
* Melting or Decomposition
ZYLON® Fiber Property
| Type | AS (Regular) | HM (High Modulus) | |
|---|---|---|---|
| Filament Decitex | (dtex) | 1.7 | 1.7 |
| Density | (g/cm³) | 1.54 | 1.56 |
| Moisture Regain (65% RH) | (%) | 2.0 | 0.6 |
| Tensile Strength | (cN/dtex) | 37 | 37 |
| (GPa) | 5.8 | 5.8 | |
| (KSI) | 840 | 840 | |
| Tensile Modulus | (cN/dtex) | 1150 | 1720 |
| (GPa) | 180 | 270 | |
| (KSI) | 26 | 39 | |
| Elongation at Break | (%) | 3.5 | 2.5 |
| Melting Temperature | (℃) | none | none |
| Decomposition Temperature in Air | (℃) | 650 | 650 |
| Coefficient of Thermal Expansion | (ppm/℃) | – | -6 |
| Limiting Oxygen Index | 68 | 68 | |
| Dielectric Constant at 100kHz | – | 3.0 | |
| Dissipation Factor | – | 0.001 | |
Product Lineups
| Staple Fiber | AS | HM | ||
|---|---|---|---|---|
 |
Cut Length (mm) | 4476 | – | |
| Chopped Fiber | AS | HM | ||
 |
Cut Length (mm) | 136 | 136 | |
| Spun Yarn | AS | HM | ||
 |
Yarn Count | (Na) | 20/120/230/1 | – |
| (Nm) | 34/134/251/1 | – | ||
| Filament | AS | HM | ||
 |
Linear Density (dtex) | 16527855511101670 | 273545109016403270 | |
| Filaments | 99166332664996 | 1663326649961992 | ||
| Cylindrical Bobbin Innerdiameter (mm) | 94 | 94 | ||
| Cylindrical bobbin Length (mm) | 216 | 216 | ||
Applications
Sports
Industrial Materials
Aerospace
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