Not known Facts About PEEK - Afton Plastics - MN

Chemical compound Polyether ether ketone (PEEK) is a colourless organic polymer in the polyaryletherketone (PAEK) family, used in engineering applications. The polymer was first developed in November 1978, later on being presented to the market by Victrex PLC, then Imperial Chemical Industries (ICI) in the early 1980s. Synthesis [edit] PEEK polymers are obtained by step-growth polymerization by the dialkylation of bisphenolate salts.

Allplastics Engineering - PEEK

The response is carried out around 300 C in polar aprotic solvents - such as diphenyl sulfone. Properties [modify] PEEK is a semicrystalline thermoplastic with excellent mechanical and chemical resistance residential or commercial properties that are kept to heats. The processing conditions utilized to mould PEEK can influence the crystallinity and thus the mechanical homes.

6 GPa and its tensile strength is 90 to 100 MPa. PEEK has a glass shift temperature level of around 143 C (289 F) and melts around 343 C (662 F). Some grades have a helpful operating temperature level of up to 250 C (482 F). This Is Cool increases almost linearly with temperature level between room temperature level and solidus temperature level.

It is attacked by halogens and strong Brnsted and Lewis acids, along with some halogenated substances and aliphatic hydrocarbons at high temperature levels. It is soluble in concentrated sulfuric acid at space temperature level, although dissolution can take a long time unless the polymer remains in a form with a high surface-area-to-volume ratio, such as a fine powder or thin film.

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Applications [modify] PEEK is used to fabricate products for requiring applications, including bearings, piston parts, pumps, high-performance liquid chromatography columns, compressor plate valves, and electrical cable insulation. It is among the few plastics compatible with ultra-high vacuum applications, that makes it suitable for aerospace, automotive, teletronic, and chemical markets. PEEK is used in medical implants, e.

PEEK is utilized in spinal combination devices and reinforcing rods. It is radiolucent, but it is hydrophobic triggering it to not completely fuse with bone. PEEK seals and manifolds are commonly used in fluid applications. PEEK likewise carries out well in high temperature applications (up to 500 F/260 C). Due to the fact that of this and its low thermal conductivity, it is likewise used in FFF printing to thermally separate the hot end from the cold end.