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PEEK (polyether ether ketone) is an organic thermoplastic polymer belonging to the family of polyetherketones, often referred to as the king of polymers, thanks to a fantastic mix of very high mechanical, thermal and chemical properties.
It has a tensile strength with values approaching 100 MPa, as some non-ferrous alloys but with a low density of 1.30 g / cm ^ 3 against 2.8 g / cm ^ 3 of light aluminium alloys. The combination of high mechanical strength and low density make it a formidable candidate to replace metal alloys, while allowing the creation of complex geometries thanks to the versatility of additive manufacturing.
In fact, PEEK, although difficult to process, is suitable for FDM additive manufacturing. The printer requires very high working temperatures of over 400 ° C for the nozzle and at least 70 ° C in the heated chamber; this temperature are not reachable by consumer machines. Furthermore, this technology, implemented in industrial printers, allows to create supports easily removable material at the end of the construction process. This feature eliminates the design constraints dictated by undercuts, internal channels and complex geometries.
PEEK can have two different crystalline states:
Amorphous (Top Mechanical) |
Semicrystalline (Top Mechanical) |
|
Tensile Strenght [MPa] |
70 |
100 |
Elongation [%] |
12 |
9 |
HDT (0,8 MPa) |
145 |
180 |
This interesting polymer is used in various fields in which the components are used in harsh conditions and in difficult environments, such as aerospace for the manufacture of structural components, covers, insulations or in the medical field as it is considered advanced biomaterial, in implants and prostheses.
You can view the PEEK datasheets here and if you think PEEK is the right material for your project, you can immediately evaluate the cost by uploading your file here.
If you still have doubts, questions or need additional information, our team of experts is available free of charge to support you in your choice: contact them to talk to them about your project and what doubts you have regarding the construction material.
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