- 密度 [g/cm3]: 1.42
- 吸水率 [%]: 2.8
Physical Properties | Metric | English | Comments |
---|---|---|---|
Density | 1.42 g/cc | 0.0513 lb/in³ | |
Water Absorption | 2.8 % | 2.8 % | 24 hr/23°C. ASTM D570 |
Mechanical Properties | Metric | English | Comments |
Film Elongation at Break, MD | 75 % | 75 % | Orientation not specified; ASTM D882 |
Poissons Ratio | 0.34 | 0.34 | Value for Kapton® HN |
Secant Modulus | 2.60 GPa | 377 ksi | ASTM D882 |
Coefficient of Friction, Dynamic | 0.48 | 0.48 | Value for Kapton® HN. Film to film. ASTM D1894-90 |
Coefficient of Friction, Static | 0.63 | 0.63 | Value for Kapton® HN. Film to film. ASTM D1894-90 |
Film Tensile Strength at Break, MD | 172 MPa | 24900 psi | Orientation not specified; ASTM D882 |
Electrical Properties | Metric | English | Comments |
Electrical Resistivity | 1.00e+10 ohm-cm | 1.00e+10 ohm-cm | Kapton® HN in damp heat; IPC-TM-650; Method 2.5.17 |
1.00e+17 ohm-cm | 1.00e+17 ohm-cm | per ASTM D257-91 for Kapton® HN | |
Dielectric Constant | 3.6 @Frequency 1000 Hz | 3.6 @Frequency 1000 Hz | Use evaporated metal electrodes, two terminal system of measurement at standard conditions.; ASTM D150 |
Dielectric Strength | 339 kV/mm | 8610 kV/in | Flat sheets in air placed between 1/4 in diameter brass electrodes with 0.8 mm (1/32 in) edge radius subjected to 60 cycles AC voltage at 600V/s rate of rise to the breakdown voltage.; ASTM D149-81 |
Dissipation Factor | 0.0030 @Frequency 1000 Hz | 0.0030 @Frequency 1000 Hz | Same test as dielectric constant. |
Thermal Properties | Metric | English | Comments |
CTE, linear | 20.0 µm/m-°C @Temperature 20.0 °C | 11.1 µin/in-°F @Temperature 68.0 °F | Value for Kapton® HN |
32.0 µm/m-°C @Temperature 100 °C | 17.8 µin/in-°F @Temperature 212 °F | Value for Kapton® HN | |
40.0 µm/m-°C @Temperature 250 °C | 22.2 µin/in-°F @Temperature 482 °F | Value for Kapton® HN | |
Specific Heat Capacity | 1.09 J/g-°C | 0.261 BTU/lb-°F | Value for Kapton® HN |
Thermal Conductivity | 0.120 W/m-K | 0.833 BTU-in/hr-ft²-°F | Value for Kapton® HN |
Maximum Service Temperature, Air | 400 °C | 752 °F | Kapton® can function after brief exposure to 400°C (750°F). Various grades are UL rated for continuous service at 220-240°C (430-460°F). |
Minimum Service Temperature, Air | -269 °C | -452 °F | Maintains properties and flexibility |
Glass Transition Temp, Tg | 385 °C | 725 °F | Value for Kapton® HN |
Flammability, UL94 | V-0 | V-0 | |
Optical Properties | Metric | English | Comments |
Refractive Index | 1.70 @Wavelength 589.3 nm | 1.70 @Wavelength 589.3 nm | Value for Kapton® HN. Na D line; ASTM D542-90 |