Written by AZoMSep 5 2001
| |
| |
Polymer Type |
| Thermoplastic |
Advantages |
| Low coefficient of friction compared to other filled PTFE materials. Higher flexural modulus and surface hardness than unmodified PTFE. |
Disadvantages |
| Lower notched impact strength, tensile strength, elongation at break and electrical characteristics compared with unmodified PTFE. Tendency of graphite to leach out. |
Typical Properties |
| | | Density (g/cm3) | 2.11 | | Surface Hardness | SD67 | | Tensile Strength (MPa) | 17 | | Flexural Modulus (GPa) | 1.03 | | Notched Izod (kJ/m) | 0.14 | | Linear Expansion (/°C x 10-5) | 12 | | Elongation at Break (%) | 240 | | Strain at Yield (%) | 65 | | Max. Operating Temp. (°C) | 180 | | Water Absorption (%) | 0.01 | | Oxygen Index (%) | 95 | | Flammability UL94 | V0 | | Volume Resistivity (log ohm.cm) | NA | | Dielectric Strength (MV/m) | NA | | Dissipation Factor 1kHz | 0.0007 | | Dielectric Constant 1kHz | NA | | HDT @ 0.45 MPa (°C) | 120 | | HDT @ 1.80 MPa (°C) | 95 | | Material. Drying hrs @ (°C) | NA | | Melting Temp. Range (°C) | NA | | Mould Shrinkage (%) | NA | | Mould Temp. Range (°C) | NA | |
Applications |
| Bearings, antistatic applications, wear pads, piston rings. |
| Source : Abstracted from Plascams For more information on Plascams please visit RAPRA Technology Ltd. |