Categories
Categories
Virgin PTFE Sheet
Properties
Physical- Mechanical
| Properties | Unit | Method | Data Molded |
|---|---|---|---|
| Density | g/cm³ | ASTM D792 | 2,14 – 2,18 |
| Hardness – Shore D | / | ASTM D2240 | ≥ 51 |
| Tensile Strength – CD | N/mm² | ISO 12086 ISO 527 |
≥ 24 |
| Elongation at break – CD | % | ISO 12086 ISO 527 |
≥ 250 |
| Compressive strength at 1% deformation – CD | N/mm² | ASTM D695 | 4 – 5 |
| Deformation under load at room temperature after 24 hours at 13,7 N/mm2 – CD | % | ASTM D621 | ≤ 17 |
| Permanent deformation as above after 24 hours of rest at room temperature – CD |
% | ASTM D621 | ≤ 9 |
| Deformation under load at 260 °C after 24 hours at 41 N/mm²- CD | % | ASTM D621 | ≤ 32 |
| Permanent deformation as above after 24 hours of rest at room temperature – CD |
% | ASTM D621 | ≤ 19 |
| Impact strength Izod | J/m | ASTM D256 | 153 |
CD=Cross Direction
Tribological
| Properties | Unit | Method | Data Molded |
|---|---|---|---|
| Dynamic coefficient of friction | / | ASTM D1894 ASTM D3702 |
0,06 |
| Wear factor K | / | ASTM D3702 | 2.900 |
| PV limit at 3 m/min at 30 m/min at 300m/min |
N/mm² • m/min | / |
2,4 4,2 5,7 |
Thermal
| Properties | Unit | Method | Data Molded |
|---|---|---|---|
| Service Temperature (min – max ) | °C | / | – 200 / + 260 |
| Thermal expansion coefficient ( linear ) 25 – 100°C | 10⁻⁵(mm/mm)/ °C | Similar to ASTM D69 | 12 – 13 |
Electrical
| Properties | Unit | Method | Data Molded |
|---|---|---|---|
| Dielectric strength (specimen 0,5 mm thick) | KV/mm | ASTM D149 | ≥ 40 |
| Dielectric Constant at 60 Hz and 10⁶ Hz | / | ASTM D150 | 2,05 – 2,10 |
| Volume Resistivity | Ω • cm | ASTM D257 | 10¹⁸ |
| Surface Resistivity | Ω | ASTM D257 | 10¹⁷ |