Teflon film
- Brand: GREAT
Polytetrafluoroethylene (PTFE film film, Teflon film, Teflon film and F4 film)
The polytetrafluoroethylene resin is pressed, sintered and turned. The film has excellent dielectric properties, aging resistance and the best corrosion resistance, so it has a wide range of applications. Gaskets, seals and lubricating materials for use in a variety of media, and electrical insulation for use at various frequencies. Capacitor medium, road line insulation, electrical apparatus, instrument insulation, etc..
The film is divided into directional, semi directional and non directional orientation film is three, the film after turning through high temperature roller pressure, the back surface of the film is more smooth, higher crystallinity, molecular orientation tightly arranged, void rate is minimal, especially anti voltage and higher strength. In addition, Yaxing can according to user requirements production of color film, color film and pure membrane activation activation, the other set specifications.
Please refer to the following table for the main technical parameters of the color film:
|
classification |
thickness |
Thickness tolerance |
width |
width tolerance |
length |
|
directional |
0.015，0.030 |
±10% |
5-100 |
±0.3 |
≥50 |
|
Semi directional |
0.030，0.035 |
±10% |
5-1000 |
±0.3 |
≥100 |
|
Non directional |
0.020，0.025 |
±10% |
5-1000 |
±2.0 |
≥50 |
Main specifications of the color film:
|
Project |
Unit |
Oriented film |
Semi oriented film |
Non oriented film |
|
Tensile strength |
MPa |
≥30 |
≥20 |
≥10 |
|
Fracture extension length |
% |
≥30 |
≥60 |
≥100 |
|
1MHz dielectric loss tangent |
|
2.5×10-4 |
—— |
—— |
|
1MHz dielectric constant |
|
average value1.8-2.2 |
— |
—— |
|
DC through voltage strength |
KV/M |
average value200 |
average value60 |
average value30 |
