PEEK Electrical Properties

PEEK Polyether-Ether-Ketone is known for its excellent electrical properties, making it suitable for various applications in electronics and electrical engineering. Here are some key electrical properties of PEEK:

Dielectric Constant: PEEK typically has a dielectric constant (relative permittivity) of around 3.2-3.3 at 1 MHz. This relatively low dielectric constant makes PEEK a good insulator.

Dielectric Strength: PEEK exhibits a high dielectric strength, typically around 17-25 kV/mm. This high dielectric strength ensures that PEEK can withstand high voltages without breaking down.

Volume Resistivity: PEEK has excellent volume resistivity, it means PEEK is highly resistant to electrical conduction.

Surface Resistivity: The surface resistivity of PEEK is also very high.

Dissipation Factor: PEEK has a low dissipation factor, typically around 0.0015 at 1 MHz. This indicates that PEEK has low dielectric losses, making it efficient for high-frequency applications.

Arc Resistance: PEEK has excellent arc resistance, typically around 190 seconds. This property makes it suitable for applications where it may be exposed to electrical arcing.

These properties make PEEK an excellent choice for applications that require high-performance electrical insulation, such as in connectors, cable insulation, and other electronic components.

Is peek a good electrical insulator?

PEEK is an excellent electrical insulator and retains its mechanical properties at high temperatures. It can thus find application in electrical instruments that operate at high temperatures, such as soldering machines.

What is peek insulation?

PEEK is a semicrystalline thermoplastic polymer that can be used as an electrical insulator and cable insulation. PEEK is known for its thermal, mechanical, and chemical properties, including its low coefficient of thermal conductivity, which makes it thermally insulated. 

Is PEEK a dielectric?

Yes, PEEK is a dielectric material with good dielectric properties up to 260°C. PEEK is a special engineering plastic with an all-aromatic structure and semi-crystallinity. It's completely covalently bonded, which means it doesn't have mobile electrons, giving it excellent insulating properties.

What is the insulation resistance of PEEK?

Depending on its purity and other physical factors, PEEK (Polyetheretherketone) insulated wire can have an insulation resistance of more than 3,000 volts per mil (v/mil). PEEK's dielectric strength can range from 0.5–20 kV/mil, which makes it a good choice for a variety of insulating needs. 

What is the electrical resistivity of PEEK?

PEEK ESd materials have a surface resistivity of 13 x 10 and 1 X 10Ù/sq and a dissipative range of 106 - 109 ohms/sq. PEEK is also electrically conductive.

What is the dielectric strength of PEEK?

The dielectric strength of PEEK can range from 0.5 - 20 kV/mil (ASTM D149).