1DESCRIPTION
This is a heat sealable film which is made by polyimide film with one side or double side FEP coated. When combined with FEP resin, the Polyimide film remains excellent heat and electrical properties. This kind of film is widely used in high temperature wire manufacturing. 2.FEATURES
- high temperature resistance,
- high dielectric strength
- heat sealable properties
- radiation retardant
- APPLICATIONS
- Wire & cable insulation when used in severe environment such as high temperature, under water and oil.
- Turn insulation in motors and generators
4. TECHNICAL PARAMETER
| Item | Unit | Standard Value | |||||||
| 33um | 38um | 50um | 250um | ||||||
Structure | FEP | um | 4.0 | 13 | 12.5 | 10 | |||
| PI | 25.0 | 25 | 25 | 230 | |||||
| FEP | 4.0 | 0 | 12.5 | 10 | |||||
| Tensile strength MD TD | Mpa | >=130 >=110 | >=140 >=110 | >=110 >=80 | |||||
| Elongation MD TD | % | >=50 | >=50 | >=50 | |||||
| Peel strength FEP-FEP FEP-polyimide FEP-steel | N/10mm | >=2.3 --- >=2.3 | --- >=2.3 >=2.9 | >=3.5 -- >=3.5 | |||||
| Breakdown voltage Average Individual | Mv/m | >=150 >=120 | >=150 >=120 | >=120 >=110 | |||||
| Surface Resistivity (200ºC) | Ω | ≥1.0×1013 | |||||||
| Volume Resistivity (200ºC) | Ω.m | ≥1.0×1010 | |||||||
| Dielectric Constant | 3.5±0.4 | ||||||||
| Dissipation Factor | <=4.0×10-3 | ||||||||
