Written by AZoMAug 16 2001
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Advantages |
Significantly higher flexural modulus and notched impact strength, improved tensile strength, HDT and mould shrinkage compared with unmodified polyimide. |
Disadvantages |
Reduced elongation at break, oxygen index and electrical characteristics compared with unmodified polyimide. |
Typical Properties |
| Density (g/cm3) | 1.65 | Surface Hardness | RM108 | Tensile Strength (MPa) | 79 | Flexural Modulus (GPa) | 13.2 | Notched Izod (kJ/m) | 0.24 | Linear Expansion (/°C x 10-5) | 2.4 | Elongation at Break (%) | 1.2 | Strain at Yield (%) | N/A | Max. Operating Temp. (°C) | 260 | Water Absorption (%) | 0.7 | Oxygen Index (%) | 45 | Flammability UL94 | V0 | Volume Resistivity (log ohm.cm) | 15 | Dielectric Strength (MV/m) | 20 | Dissipation Factor1kHz | 0.006 | Dielectric Constant 1kHz | 6 | HDT @ 0.45 MPa (°C) | 260+ | HDT @ 1.80 MPa (°C) | 380 | Material Drying hrs @ °C | NA | Melting Temp. Range (°C) | NA | Mould Shrinkage (%) | 0.12 | Mould Temp. Range (°C) | NA | |
Applications |
Synchroniser rings for gearboxes, terminal boards, and electrical collectors, terminal strips. |
Source : Abstracted from Plascams For more information on Plascams please visit The Rubber and Plastics Research Association |