T-F series is a 3-layer co-extruded (ABA structured) PET film. Layer A is UV-resistant while layer B is hydrolysis resistant. Through series tests of mechanical property, electric property, damp heat aging, and UV aging, its properties of UV resistance and damp heat resistance turn out to be excellent. Exposed in 300kwh/m2 UV radiation, its yellowness index keeps in 4.0. Its elongation at break reaches 69% under the 121℃ damp heat test for 60 hours. Using such PET films in the production of polysilicon solar cell back sheets, the panel property can be greatly improved. Special requirements on film thickness can be settled upon negotiation. The recommended thickness is 125μm and 150μm.
Yellowness Index
Features
T-F series PET film features not only excellent light transmittance, mechanical property, insulation, and chemical resistance, but also splendid of anti-UV performance.
Application
The PET anti-UV film is suitable for exteriors reinforcement especially in chill cars, hybrid cargo trucks and tank truck surface. The thickness is from 100μm to 250μm, among which 125μm and 150μm are highly recommended.
Retention Elongation at Break
Technical Data
| ITEM | STANDARD | UNIT | TYPICAL VALUE |
|---|---|---|---|
| Thickness | GB/T 13542.2-2009 | μm | 150 |
| Transmittance | GB/T 2410-2008 | % | 7.8 |
| Surface Glossiness | GB 8007 | / | 115 |
| Tensile Strength(MD) | GB/T 13542.2-2009 | Mpa | 180 |
| Tensile Strength(TD) | GB/T 13542.2-2009 | Mpa | 190 |
| Elongation at Break(MD) | GB/T 13542.2-2009 | % | 113 |
| Elongation at Break(TD) | GB/T 13542.2-2009 | % | 95 |
| Heat Shrinkage(MD) | GB/T 13542.2-2009 | % | 0.7 |
| Heat Shrinkage(TD) | GB/T 13542.2-2009 | % | 0 |
| Electric Strength | GB/T 13542.2-2009 | V/μm | 93.3 |