What does PEEK plastic mean?
Polyether ether ketone
Polyether ether ketone (PEEK) is a colourless organic thermoplastic polymer in the polyaryletherketone (PAEK) family, used in engineering applications. PEEK is a semicrystalline thermoplastic with excellent mechanical and chemical resistance properties that are retained to high temperatures.
What is a PEEK material?
WHAT IS PEEK MATERIAL? PEEK material (polyetheretherketone) is a high-performance semi-crystalline engineering thermoplastic with outstanding harsh chemical resistance, very low moisture uptake, good fire performance, excellent mechanical strength across a broad temperature range, and good dimensional stability.
What is the properties of PEEK?
PEEK Properties and Material Options
| UNITS | PEEK 30% GLASS-FILLED | |
|---|---|---|
| Tensile strength | psi | 24,620 |
| Flexural modulus | psi | 1,450,000 |
| Izod impact (notched) | ft-lbs/in of notch | 1.84 |
| Heat deflection temperature @ 264 psi | °F | 599 |
How is PEEK plastic made?
PEEK polymers are obtained by step-growth polymerization by the dialkylation of bisphenolate salts. Typical is the reaction of 4,4′-difluorobenzophenone with the disodium salt of hydroquinone, which is generated in situ by deprotonation with sodium carbonate.
What is the difference between PTFE and PEEK?
PTFE is an outstanding electrical insulator over a wide range of temperatures and frequency. PEEK is a semicrystalline thermoplastic with excellent mechanical and chemical resistance properties that are retained to high temperatures.
Is PEEK expensive?
In a nutshell, PEEK’s ability to stay dimensionally stable under harsh environments makes it a highly sought after polymer. OEMs who use PEEK do so knowing well that for the properties offered, PEEK is unique and therefore expensive.
Is PEEK stronger than aluminum?
The inherent low specific gravity of VICTREX PEEK (1.3 g/cm3) is less than half that of aluminium and one sixth that of steel. This results in a superior strength-to-weight ratio so VICTREX PEEK-based compounds can offer equivalent strength and stiffness with up to 70% weight reduction.
Why is PEEK so strong?
Chemical resistance: PEEK displays high resistance amidst a wide range of chemical environments even in high temperature enviroments. It can only be dissolved in concentrated nitric acid or sulphuric acid. Long life: It is a hard, stiff and strong polymer. It displays good friction as well as wear properties.
What is special about PEEK?
Polyetheretherketone (PEEK) is a semi-crystalline, high-performance engineering thermoplastic. This rigid opaque (grey) material offers a unique combination of mechanical properties, resistance to chemicals, wear, fatigue and creep as well as exceptionally high temperature resistance, up to 260°C (480°F).
Is PEEK better than PTFE?
What kind of polymer is polyether ether ketone?
Polyether ether ketone ( PEEK) is a colourless organic thermoplastic polymer in the polyaryletherketone (PAEK) family, used in engineering applications. It was originally introduced by Victrex PLC, then Imperial Chemical Industries (ICI) in the early 1980s.
What are the properties of polyetherketones ( PAEKs )?
Polyaryletherketones (PAEKs) are a class of semi-crystalline high performance engineering thermoplastics having a unique combination of thermal stability, chemical resistance, and excellent mechanical properties over a wide temperature range. This class of polymers has also good resistance to combustion and good electrical performance.
Which is a member of the polyetheretherketone family?
PEEK is a member of the polyaryletherketone (PAEK) family consisting of an aromatic molecular backbone with combinations of ketone and ether functional groups between the aryl rings. Two members of the PAEK families considered for implants are polyetherketone and PEKK with the latter being dominant in implants (Kurtz, 2011).
How are polyetherketones used in the medical field?
The excellent solvent resistance can be a critical factor in many demanding applications. Like polyethersulfones, polyetherketones are usually not attacked by prolonged exposure to (sea) water or steam, which makes them ideal candidates for use in applications such as medical components, subsea equipment, and valve components.