3D Materials – the PAEK filaments designed by Kimya

Compared to aluminum, the PAEK material is 40% lighter and can act as an insulator. It is also sterilizable and biocompatible. PAEK also provides resistance against high temperatures (260°C), traction, abrasion, hydrolysis and chemicals (organic, acid, alkali). It is also resistant to deformation and wear. At ambient temperature it has an infinite lifespan.

Properties of 3D filaments made of PAEK

 

PAEK offers better adhesion during printing. Its crystallization is also easier to control. Furthermore, PAEK has self-extinguishing properties. This means that parts printed using PAEK will put themselves out if they catch fire. Thanks to its chemical resistance, PAEK can be used as a material for components exposed to acids and hydrocarbons, such as fuel and lubricants. Its low gas emissions enable it to be used in confined environments, such as satellites, where the materials may not give off gases in a vacuum. Lastly, its high operating temperature makes it viable for producing components located in engine compartments.

 

Discover the PAEK-based 3D filaments by Kimya

 

 

 

Compatible printers and the most common applications

 

PAEK is compatible with FDM printers offering an extrusion temperature of at least 350°C and a heated printing plate (up to 125°C for the PEKK-A and 60°C for the PEKK Carbon). The printing parameters are unique to each 3D printer: we therefore recommend that you carry out a few tests to find the most suitable settings. The aerospace sector favors this type of filament, as does the medical sector as it promotes bone regeneration.

 

Points to note

 

The nozzle temperature must not be too high. This could cause partial deformation and seepage of the filament. Conversely, too low a temperature can weaken inter-layer adhesion. It can also cause poor printing of detail due to the viscosity of the polymer. Furthermore, the temperature of the chamber is generally slightly below that of the material’s glass transition temperature. Accordingly, it is important to maintain the part during production as close as possible to its crystallization temperature to ensure successful printing.

Possible alternatives: the PPSU filaments and the PEI filaments.

 

 

Download our matrix to compare the properties of all our filaments.

To find out more about the high-performance thermoplastic filaments, view the 3D Natives media kit.