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PTFE Film is made from PTFE resin and prepared by compression molding, skiving and calendaring technology. There are three kinds of film: oriented, Semi-oriented and non-oriented film. The film has excellent chemical resistant, ageing resistant and dielectric property, used as capacity medium, electric device, wire and cable insulation. It conforms to the professional standard QB/T 3627-99.
Specification
| Code | Type | Thicknessmm | Width mm | Length m |
SFM-1 | Oriented | 0.008~0.04 | 40,60,90 | ≥50 |
SFM-2 | Semi-Oriented | 0.03~0.20 | 60, 90 | ≥100 |
Non- Oriented | 0.02~0. 50 | 60, 90, 120 | ≥50 | |
SFM-3 | Oriented | 0.01~0.20 | 40,60,90 | ≥30 |
Non- Oriented | 0.02~0.50 | 60,90,120,150 | ≥20 | |
Note: Customers request negotiable. |
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Note: SFM-1 oriented film used as capacitor medium; SFM-2 semi-oriented, non-oriented film used as wire insulation; SFM-3 oriented, non-oriented film used as insulation, sealing material in electric devices and instruments and anti-stick material at high temperature.
Main Properties
| Item | Unit | Value | |||||
SFM-1 | SFM-2 | SFM-3 | |||||
Oriented | Semi-Oriented | Non- Oriented | Oriented | Non- Oriented | |||
Tensile Strength | MPa | ≥30 | ≥20 | ≥10 | ≥30 | ≥10 | |
Elongation @ Break | % | ≥30 | ≥60 | ≥100 | ≥30 | ≥100 | |
1MHzDissipation factor | ≤0.01 | -- | 3.0×10-4 | -- | -- | 3.0×10-4 | -- |
1 | --- | 2.5×10-4 | -- | -- | -- | -- | |
1MHzDielectric Constant |
| Average 1.8~2.2 | -- | -- | Average1.8~2.2 | -- | |
Voltage Breakdown(D.C) | KV mm | Average200 | Average60 | Average40 | Average60 | Average30 | |
Minimum40 | Minimum6 | Minimum4 | -- | -- | |||