PTFE Film Sheet Data Sheet and Description
| Test Item | Unit | Target | |
| High-density film | Commom film | ||
| Tensile Strength | Mpa | ≥30 | ≥10 |
| Ultimate Elongation | % | ≥30 | ≥100 |
| 1MHz Dielecticlossangle Tangent Value |
3.0×10⁴ 2.5×10⁴ |
/ | |
| 1MHz dielectric coeficient | Average value 1.8-2.2 | / | |
| The Dc breakctown voltage | Kv/mm | Average 200 Lowest 40 | Average 40 Lowest 4 |
Thickness 0.02 - 0.08mm
Width 300mm & 600mm
PTFE film sheet refers to a non-directional film made from high-quality pure polytetrafluoroethylene resin. It is produced by molding a cylindrical blank, followed by high-temperature sintering and then continuous machining along the circumference of the blank using specialized turning (planing) equipment. Its molecular chains are randomly distributed, exhibiting consistent mechanical properties in both longitudinal and transverse directions. It is extremely tough, flexible, and foldable, with virtually no directional variation. Calendered semi-directional and oriented PTFE thin film exhibits a smoother surface, significantly improved longitudinal tensile strength and elastic modulus, smaller thickness tolerances, and superior dimensional stability and dielectric properties. PTFE film rolls are widely used in high-frequency, high-speed copper-clad laminates, 5G/6G antenna substrates, radomes, capacitor dielectric films, fuel cell proton exchange membrane reinforcement layers, and other precision applications requiring extremely high mechanical strength, electrical properties, and thickness uniformity.
PTFE Film Roll Features
- · Low ternperature and high temperature resistance(-180°C~+260℃)· Orrosion resistance,weather resistance
- · High lubricity,no adhesion
- · Non-toxic
- · Non-flammable
- · Acid and alkwali resistance(except molten alkali metals)
- · Antioxidant
