Ptfe Teflon Film is made of die-pressed PTFE blanks and has excellent dielectric
performance and weathering. It is a non-orientated film and may be pressed to
become orientated or semi-orientated film, i.e. suede pads, seals and lubricating
materials in various media. Ptfe Teflon Film can also become insulating
pieces under various frequencies, a capacitor medium, conductor
insulator and insulation for electricity meters.
3.Specifications
Property |
Unit |
High-density |
Semi-density |
Common |
Tensile strength |
MPa |
≥30 |
≥20 |
≥10 |
Elongation at rupture |
% |
≥30 |
≥60 |
≥100 |
1MHz dielectric loss tangent |
|
2.5×10-4 |
-- |
-- |
1MHz dielectric constant |
|
average 1.8-2.2 |
- |
-- |
Dc breakdown voltage (Normal temperature) |
KV/M |
average 200 |
average 60 |
average 30 |
4.Advantages
1.Minimal Water Absorption
2.Excellent Machining
3.Acid and chemical resistant
4.Good Electrical insulation
5.High working temperatures
6.Low friction
7.Surface protect material
Item |
Thickness |
Thickness allowance |
Width |
Width allowance |
Length |
high-density |
0.015mm,0.030mm |
±0.003mm |
30-90mm |
±0.3mm |
≥50mm |
semi-density |
0.030mm,0.035mm |
±0.003mm |
60-90mm |
±0.3mm |
≥100mm |
common |
0.020mm,0.025mm |
±0.003mm |
60-90+mm |
±2.0mm |
≥50mm |
Item |
Properties |
Filled Powder |
1 |
improve the resistance of cold flow and the creep properties |
graphite,fiberglass |
2 |
improve thelubricity |
MoS2 |
3 |
improve the heat conduction performance |
bronze,carbon fiber |
4 |
improve the wear resistance |
fiberglass,polybenzoate |
5 |
improve the stability and reduce the deformation |
carbon fiber |