PEEK possesses excellent thermal stability, with a continuous operating temperature range of up to approximately 250°C (482°F) and short-term excursions to even higher temperatures. This makes it suitable for applications requiring prolonged exposure to elevated temperatures, such as in aerospace, automotive, and oil and gas industries.
In addition to its high thermal stability, PEEK exhibits outstanding mechanical properties, including high strength, stiffness, and wear resistance. Its tensile strength and modulus are comparable to those of metals, yet it is significantly lighter in weight, making it attractive for weight-sensitive applications.
Chemically, PEEK is resistant to a wide range of chemicals, including acids, bases, solvents, and hydrocarbons. This chemical inertness makes it suitable for use in aggressive environments where exposure to corrosive substances is a concern, such as in chemical processing, medical devices, and semiconductor manufacturing.
PEEK is also characterized by its excellent electrical properties, including high dielectric strength, low dielectric constant, and low dissipation factor. These properties make it an ideal material for electrical and electronic applications, including connectors, insulators, and circuit boards.
In terms of processing, PEEK can be readily processed using conventional techniques such as injection molding, extrusion, and compression molding. Its melt viscosity is relatively low compared to other high-performance polymers, allowing for easy flow and filling of molds.
In summary, Polyether ether ketone (PEEK) is a versatile and high-performance engineering thermoplastic with exceptional thermal, mechanical, chemical, and electrical properties. Its unique combination of properties makes it an ideal choice for a wide range of demanding applications across various industries.
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