What is PEEK-FE material？
PTFE material has good chemical corrosion resistance and friction coefficient. After adding 20% PTFE ，PEEK material has significantly improved corrosion resistance, self-lubricating and friction resistance.
PEEK materials filled with PTFE also include PEEK-FC,what is the different between PEEK-FE and PEEK-FC?
1.Different formulas:
PEEK-FE:80%PEEK+20%PTFE
PEEK-FC:PEEK+10%PTFE+10%carbon fiber+10%graphite
2.Different performance
PEEK-FE has better toughness than PEEK-FC, and without the addition of carbon fiber, PEEK-FE has a higher elongation at break. Under the same testing conditions, the impact result without a notch is no fracture.
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| PEEK-FC | PEEK-FE |
| Property | Standard | Condition | Unit | Value | Value |
| Tensile Strength | ISO 527 | Break, 23℃ | MPa | 140 | 78
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| Tensile Elongation | ISO 527 | Break, 23℃ | % | 2.2 | 25 |
| Flexural Strength | ISO 178 | Break, 23℃ | MPa | 230 | 125 |
| Flexural Modulus | ISO 178 | 23℃ | GPa | 11.5 | 3.2 |
| Compressive Strength | ISO 604 | 23℃ | MPa | 170 | 105 |
| Charpy Impact Strength (Notched) | ISO 179/1eA | Notched | kJ/m² | 5 | - |
| Charpy Impact Strength (Unnotched) | ISO 179/1U | Unnotched | kJ/m² | 35 | - |
| Izod Impact Strength (Notched) | ISO 180/A | Notched | kJ/m² | 6 | 7.5 |
| Izod Impact Strength (Unnotched) | ISO 180/U | Unnotched | kJ/m² | 35 | no brake |
| Mould Shrinkage (Along Flow) | ISO 294-4 | Along Flow | % | 0.3 | 1.2 |
| Mould Shrinkage (Across Flow) | ISO 294-4 | Across Flow | % | 0.7 | 1.7 |
