- 密度 [g/cm3]: 0.32
- 吸水率 [%]: 2.0
- 彎曲強(qiáng)度 [MPa]: 0.518
- 脆化溫度 [℃]: -40.0
| Physical Properties | Metric | English | Comments |
|---|---|---|---|
| Density | 0.320 g/cc | 0.0116 lb/in3 | ±10%; ASTM D3574A |
| Water Absorption | 2.0 % | 2.0 % | Typical per AMS 3568 |
| Water Absorption at Saturation | 10 % | 10 % | Immersion; ASTM D570 |
| Mechanical Properties | Metric | English | Comments |
| Hardness, Shore A | 12 | 12 | ASTM D2240 |
| Hardness, Shore O | 17 | 17 | ASTM D2240 |
| Tensile Strength, Ultimate | >= 0.518 MPa | >= 75.1 psi | ASTM D3574E |
| Elongation at Break | >= 100 % | >= 100 % | ASTM D3574E |
| Compressive Yield Strength | 0.0480 - 0.0900 MPa | 6.96 - 13.1 psi | at 25% deflection; 0.2"/min strain rate |
| Tear Strength | >= 0.900 kN/m | >= 5.14 pli | Die C; ASTM D624 |
| Compression Set | <= 2.0 % | <= 2.0 % | 23°C; ASTM D1667 test D |
| <= 5.0 % @Temperature 121 °C | <= 5.0 % @Temperature 250 °F | Test D after autoclaved 5 hrs.; ASTM D3574J | |
| <= 10 % @Temperature 70.0 °C | <= 10 % @Temperature 158 °F | ASTM D3574 test D | |
| Electrical Properties | Metric | English | Comments |
| Electrical Resistivity | 1.00e+12 ohm-cm | 1.00e+12 ohm-cm | ASTM D257 |
| Surface Resistance | 2.00e+12 ohm | 2.00e+12 ohm | ASTM D257 |
| Dielectric Constant | 1.71 | 1.71 | K' ("DK"); ASTM D150; relative humidity 50% for 24 hrs. |
| Dielectric Strength | 2.00 kV/mm | 50.8 kV/in | ASTM D149 |
| Dissipation Factor | 0.050 | 0.050 | tan D ("DF"); ASTM D150 |
| Thermal Properties | Metric | English | Comments |
| CTE, linear | 230 - 310 μm/m-°C @Temperature 20.0 °C | 128 - 172 μin/in-°F @Temperature 68.0 °F | ASTM C518 |
| Thermal Conductivity | 0.0860 W/m-K | 0.597 BTU-in/hr-ft2-°F | ASTM C158 |
| Maximum Service Temperature, Air | 90.0 °C | 194 °F | Recommended continuous use |
| 121 °C | 250 °F | Intermittent | |
| Brittleness Temperature | -40.0 °C | -40.0 °F | Low temp embrittlement; ASTM D746 |