Polyester Film
Polyester film possess many excellent mechanical, dielectrical, physical and optical performance, and therefore be widely used in many field. For insulatin purpose, it is used in electrical equipment, household appliance, film switch.
Below models are available:- 6020 Common type, transparent, good dielectric performance, as electrical insulation.
- 6021 Common type, milky, other is same as type 6020.
- ECF For capacitors
- 6023 Flame retardant, excellent mechanical performance, good dimension stability, as insulation of flame retardant electrical motors and appliance.
- DE10 As wrapping film for phone cable and power cable, good wrapping property, near transparent or translucency, other feature is same as type 6020.
- DX10 B Class. Freon resistant, heat resistant, low xylene extraction value, translucency, excellent mechnical and dielectric performance, as insulation of airconditioner and refrigerator compressor electric motor and other middle and high grade electric motor and appliances.
- 6023-DB10 As insulation of flyback transformer (FBT), flame retardant.
- DK10, DK11 Good printing ink adherence and flatness, good dimension stability, little thickness tolerance, low shrinkage, suitable for membrane switch, FPC. 2 type are available: transparent(DK10) and atomized(DK11) film.
- DG10 High transparency, excellent mechanical performance, suitable be film base of ITO fim, laser typesetting, darkroom copy and printing & plate making.
- DP10 Excellent physical mechanical performance, heat resistance and dimension stability, translucency to opaque, used as film base of advertising, and printing, as backing material of label, white panel, picture screen and membrane switch.
- 6020(SL) Low shrinkage, other feature is same as ECT, suitable for guardcard, FRP release film.
- MD type is shrinkable on machine direction, suitable for packaging
Below table shows property of polyester film common type 6020 and 6021:
| Index | Unit | Value | |||||||||||
| Thickness | μm | 25 | 36 | 50 | 75 | 100 | 125 | 150 | 188 | 250 | 300 | 350 | |
| Thickness tolerance | ≤ | % | ±5 | ±5 | ±5 | ±5 | ±5 | ±4 | ±4 | ±4 | ±4 | ±4 | ±4 |
| Tensile strength | ≥ | Mpa | 150 | 150 | 150 | 150 | 150 | 140 | 140 | 140 | 110 | 110 | 110 |
| Break elongation | ≥ | % | 60 | 60 | 60 | 80 | 80 | 80 | 80 | 80 | 80 | 80 | 80 |
| Heat shrinkage | ≤ | % | 3 | 3 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 |
| Dielectric strength | ≥ | V/μm | 174 | 150 | 130 | 105 | 90 | 75 | 70 | 65 | 60 | 55 | 50 |
