PEEK is highly resistant to water and many solvents (even when subjected to them in high-temperature and high-pressure steam conditions). This has led to its wide use in thermally aggressive environments such as oil and gas, and automotive industries. Tests show that PEEK has a high melting point of 341☌, high glass transition temperature of 143☌, and a continuous use temperature of up to 260☌. Let us take a closer look at its properties and how it behaves and influences material selection in various industries: The ether group in PEEK lends flexibility (making it tough) and renders it unreactive (providing resistance to chemical exposure). The aryl and ketone portions of its build-up give PEEK rigidity and stiffness, which means good mechanical performance and a high melting point. PEEK is a semi-crystalline, opaque material belonging to the PolyKetone family of polymers called PAEK, which comprises aryl, ether, and ketone molecule groups. This is what our experts at Xcentric think you should know about PEEK to help you decide whether it is the right material for your needs. Aerospace: Electrical insulators and isolators, battery connectors, external light housings, gaskets, seals, fittings, brackets, clamps, and thermal acoustic insulation.Medical device: Endoscope parts and dental cleaners, implants, surgical devices, joint replacement.Office machinery: Copier claws, special heat-resistant bearings, chains, gears.Automotive: Engine parts, variable speed transmission parts, steering parts, brake components.This makes it a popular choice when manufacturing aerospace and automotive components, medical devices, machinery parts, semiconductors, and electrical and electronic machinery. PEEK often outperforms metal when used in harsh environments. This results in time and cost advantages. Its other properties include electrical insulation, corrosion resistance, and high purity.Īnd because PEEK can be mass-produced by injection molding without involving the machining of metals and the curing of thermosets, there are fewer processing steps. PEEK, however, possesses several of these properties: including mechanical strength, wear-resistance, heat resistance, and chemical resistance. However, most of these fall below expectations when it comes to other demands, such as wear-resistance or mechanical strength. Here is why: Many high-performance polymers can stand up to one or two requirements, either the ability to withstand extreme temperature or chemical exposure. At Xcentric, we have more than 40 resins in stock to choose from and take particular care in advising our clients on material selection.Īmong the small number of high-performance polymers, the PAEK (PolyArylEtherKetone) family leads the way, and, among these, PEEK (PolyEtherEtherKetone) is the most popular. There are thousands of plastic variations available, from everyday commodity plastics to high-performance polymers used in very demanding operating environments. Product developers and engineers are often overwhelmed by the number of injection molding plastics they must choose from to find just the right material to manufacture with. PEEK, PEEK G元0, PEEK FC30, PEEK CA30 and PEEK MG.PEEK Properties, Characteristics, And Applications We stock PEEK plastic in extruded round bars, extruded sheets/plates and tubular bars. It is not resistant to sulphuric acid, nitric acid, halogens, or MEK at raised temperatures. PEEK has good resistance to water and water vapour (un-filled material has excellent hydrolysis resistance), alcohols, esters, alkaline solutions, oils, fats and fuels. We supply full machining instructions on request. As with all plastic materials, experience has shown that extra care must be taken with larger diameters, especially in the colder months when plastic materials lose some of their toughness, and so have less resistance to machining stresses. The glass or carbon fibre reinforced grades will require tipped tooling. The machinability of un-modified PEEK is excellent.
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