- 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 |
| Moisture Absorption at Equilibrium | 1.8 % | 1.8 % | 50% RH; 23°C |
| Moisture Vapor Transmission | 3.50 cc-mm/m²-24hr-atm | 8.89 cc-mil/100 in²-24hr-atm | 25 µm film; g/m²-24 h; ASTM E-96-92 |
| Oxygen Transmission | 9.90 cc-mm/m²-24hr-atm | 25.1 cc-mil/100 in²-24hr-atm | 25 µm film; ASTM D1434-82; 50% RH |
| Mechanical Properties | Metric | English | Comments |
| Film Tensile Strength at Yield, MD | 69.0 MPa | 10000 psi | 25 µm film; 3% yield point, orientation not specified; ASTM D882-91 |
| Film Elongation at Break, MD | 75 % | 75 % | Orientation not specified; ASTM D882 |
| Poissons Ratio | 0.34 | 0.34 | Avg. three samples elongated at 5%, 7%, 10% |
| Secant Modulus | 2.80 GPa | 406 ksi | ASTM D882 |
| Impact Test | 0.780 J | 0.575 ft-lb | 25 µm film; Impact strength per DuPont Pneumatic Impact Test |
| Coefficient of Friction, Dynamic | 0.48 | 0.48 | film to film; ASTM D1894-90 |
| Coefficient of Friction, Static | 0.63 | 0.63 | film to film; ASTM D1894-90 |
| Film Tensile Strength at Break, MD | 221 MPa | 32100 psi | Orientation not specified; ASTM D882 |
| Electrical Properties | Metric | English | Comments |
| Electrical Resistivity | 1.00e+10 ohm-cm | 1.00e+10 ohm-cm | in damp heat; IPC-TM-650; Method 2.5.17 |
| 1.40e+17 ohm-cm | 1.40e+17 ohm-cm | per ASTM D257-91 | |
| Dielectric Constant | 3.5 @Frequency 100000 Hz | 3.5 @Frequency 100000 Hz | |
| 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 | 197 kV/mm | 5000 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 | 0.0020 @Frequency 1000 Hz | 0.0020 @Frequency 1000 Hz | Same test as dielectric constant. |
| 0.0090 @Frequency 100000 Hz | 0.0090 @Frequency 100000 Hz | ||
| Thermal Properties | Metric | English | Comments |
| CTE, linear | 20.0 µm/m-°C @Temperature -14.0 - 38.0 °C | 11.1 µin/in-°F @Temperature 6.80 - 100 °F | 25 µm film; ASTM D696-91 |
| 32.0 µm/m-°C @Temperature 100 - 200 °C | 17.8 µin/in-°F @Temperature 212 - 392 °F | 25 µm film | |
| 40.0 µm/m-°C @Temperature 200 - 300 °C | 22.2 µin/in-°F @Temperature 392 - 572 °F | 25 µm film | |
| Specific Heat Capacity | 1.09 J/g-°C | 0.261 BTU/lb-°F | Differential Calorimetry |
| Thermal Conductivity | 0.120 W/m-K | 0.833 BTU-in/hr-ft²-°F | ASTM F433-77 |
| 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 | 360 - 410 °C | 680 - 770 °F | A 2nd order transition occurs in Kapton® between 360-410°C (680-770°F) and is assumed to be the Tg |
| 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 | Na D line; ASTM D542-90 |