PET film is a kind of non-toxic and non-pollutant environment friendly material. It is widely used in the industries of decoration, package, print, and electrical insulation etc. 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 | |||||||
