The products are characteristic of high temperature resistance and low shrinkage.
Item | Unit | Index | Test method | ||||||
Thickness | um | 100 | 125 | 175 | 188 | 200 | 250 | GB12802.2-2004 | |
Deviation of thickness | ±3 | ±3 | ±4 | ±4 | ±4 | ±4 | |||
Tensile strength | MD | Mpa | ≥170 | ≥160 | ≥160 | ≥150 | ≥150 | ≥150 | GB12802.2-2004 |
TD | |||||||||
Elongation at break | MD | ≥100 | ≥100 | ≥100 | ≥100 | ≥100 | ≥100 | GB12802.2-2004 | |
TD | |||||||||
(150℃,30min)Heat shrinkage | MD | ≤1.5 | ≤1.5 | ≤1.5 | ≤1.5 | ≤1.5 | ≤1.5 | GB12802.2-2004 | |
TD | ≤0.6 | ≤0.6 | ≤0.6 | ≤0.6 | ≤0.6 | ≤0.6 | |||
Haze | ≤2.0 | ≤2.6 | ≤3.5 | ≤4.0 | ≤4.6 | ≤ | GB2410-80 | ||
Wetting tension | mN/m | ≥52 | GB/T 13541-1992 | ||||||
Electrical strength | /V/μm | ≥90 | ≥80 | ≥69 | ≥66 | ≥64 | ≥60 | GB12802.2-2004 | |
Volume resistivity | Ωm | ≥1×10^14 | GB12802.2-2004 | ||||||
(50Hz) Relative dielectric constant | 2.9~3.4 | GB12802.2-2004 | |||||||
(50Hz)Dielectric loss tangent | ≤3×10^(-3) | GB12802.2-2004 | |||||||
