How is PEEK manufactured?

How is PEEK manufactured?

Polyether ether ketone (PEEK) can be manufactured using a variety of organic synthesis methods, but a common process is step-growth polymerization. This process involves reacting 4,4'-difluorobenzophenone or 1,4-bis(4-fluorobenzoyl) benzene with hydroquinone in the presence of alkali carbonates. The polymer is then isolated by removing the alkali metal fluoride and the polymerization solvent.

How is PEEK created?

For example, PEEK can be created via the nucleophilic substitution of 4,4' – difluorobenzophenone with hydroquinone in the presence of an anhydrous carbonate salt conducted in a polar aprotic solvent with a high melting temperature (commonly diphenyl sulfone).

How do you make PEEK material?

PEEK is made through the aromatic nucleophilic substitution reaction of the potassium salt of hydroquinone and 4,4′-difluorobenzophenone

What is the manufacturing process of PEEK?

PEEK can be processed using injection molding or additive manufacturing, where its high melting point permits faster feeds and speeds. PEEK can also be manufactured via CNC machining. Across manufacturing methods, PEEK offers repeatability and accuracy component-to-component and can produce parts with tight tolerances.

Who makes PEEK material?

PEEK material (chemically known as polyetheretherketone) is manufactured by ARKPEEK in China in pellert and standard stock shapes for machining as well as finished parts. It is extruded in sheet, rod, tubing and injection moulding & machining components.

Who makes PEEK raw material?

ARKPEEK also make raw materials of PEEK in pellet or granules shape.

How are PEEK polymers prepared?

Synthesis. 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 best alternative to PEEK?

Also known as PEI (polyetherimide), Ultem is a high performance thermoplastic with properties similar to PEEK, but with a lower impact strength and usable temperature as well as a lower cost. Ultem has excellent mechanical properties, including a tensile strength of 15,200 psi, and has continuous use up to 340ºF.

What is another name for PEEK plastic?

Polyether ether ketone, (PEEK) is a colourless organic thermoplastic polymer in the polyaryletherketone (PAEK) family, used in engineering applications.