![]() ![]() It has also good resistance to combustion and good dielectric performance. PEEK offers a unique combination of mechanical properties, resistance to chemicals, wear, fatigue, and creep, as well as exceptionally high temperature resistance. Roboze 3D Printed PEEK has a very high degree of crystallinity, resulting in the best properties possible. Amorphous PEEK has lower mechanical, thermal, and chemical properties. When cooled too quickly, PEEK can be amorphous, showing translucent-brown areas. This means that it is opaque and shows considerable improvements in strength and stiffness, with better high-temperature performances and superior chemical resistance. These values help to define the processing temperature and appear to be significantly higher than commonly used plastics like ABS or PET. PEEK changes its state from glassy to viscoelastic at 143☌, being still functional until 250☌, then it slowly degrades till it melts at 343☌. Polyester (PL) along with nylon (PA) and polyvinyl chloride (PVC) are among well-known thermoplastic polymers. When higher temperatures weaken the polymer chains, the thermoplastic becomes a viscous liquid that can be easily reshaped and processed with different production techniques like injection moulding, compression moulding, and extrusion. Polymers that are thermoplastic become malleable or mouldable at a certain high temperature and solidify when cooling. Among the members, PEEK is the most widely used 3d printing material and it is manufactured in large scale, also because it is easy to machine, thanks to its metals like behaviour. The PAEK family is characterized by high-temperature stability and high mechanical strength. ![]() PEEK belongs to the PAEK polymer family (polyaryletherketones polymer family) that includes PEK, PEEK, PEEKK, PEKK, PEKEKK and more. For instance, Polyethilene (PE) is an organic polymer with every carbon atom bonded with two hydrogen atoms. Almost all the plastic compounds used today are organic, constituted of very big molecules made by long chains of carbon atoms. In chemistry, organic compounds are generally any chemical compounds that contain carbon-hydrogen bonds. Here are some PEEK polymer's chemical properties: ![]() Flexibility in the polymer backbone is provided by ether linkages. The high thermal stability of PEEK is provided by the diphenylene ketone groups, which impart also high strength and high resistance to oxidation. The molecular strength of the repeating monomers of two ether groups and a ketone group that compose PEEK, provide it of outstanding properties. Polymers are substances or materials consisting of macromolecules composed of many repeating subunits, called monomers. PEEK ( Polyetheretherketone) is a colourless organic thermoplastic polymer, even though when printed it looks beige-brown (in its Carbon reinforced version, it looks black). Polyetheretherketone ( PEEK) is a semi-crystalline, high-performance organic thermoplastic polymer that belongs to the PAEK family. ![]()
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