Properties | BOPP | PEI | THV | PEEK | PI | PC | PTFE | PVDF-CTFE |
Film Type | Semi- crystalline | Amorphous | Semi- crystalline | Semi- crystalline | Amorphous | Amorphous | Semi- crystalline | Semi- crystalline |
Max use Temperature (˚C) | 90 | 200 | 220 | 150 | 300 | 130 | 260 | 125 |
Energy Density at break down strength (J/cm3) | 5 | 1.3 | 6.84 | 2.6 | 1.3 | 3.7 | 2.1 | 17 |
Dielectric Constant at 1 kHz (K) | 2.2 | 3.2 | 4.5 | 3.2 | 3.3 | 3.0 | 2.1 | 10 |
Dielectric Loss at 1 kHz (10−3) | 0.2 | 2 | 0.5 | 4 | 2 | 1.3 | 0.5 | 50 |
Breakdown strength (MV/m) | 720 | 300 | 600 | 430 | 300 | 530 | 300 | 620 |
Tensile Strength (ksi) | 4.9 | 14 | 3.5 | 17.4 | 10.5 | 9.5 | 3 | 7.5 |