Low‐temperature selective laser sintering 3D printing of PEEK‐Nylon blends: Impact of thermal post‐processing on mechanical properties and thermal stability

• DOI: 10.1002/app.52290
• Publication Date: 2022-02-25T13:27:21Z
• Authors: Luis A. Chavez; Paulina Ibave; Md Sahid Hassan; Samuel E. Hall‐Sa...; Kazi Md Masum Billah; Alba Leyva; Cory Marquez; David Espalin; Sabrina Torres; Thomas Robison; Yirong Lin
• Keywords: Selective laser sintering; Thermal Stability

Abstract A high‐performance polymer (HPP) (polyether ether ketone, PEEK) blended with a commercial low‐temperature (polyamide 12, PA‐12) was fabricated using selective laser sintering (SLS) 3D printer. Different post‐processing heat treatments were implemented after fabrication to tune the thermal and mechanical properties of printed blends. The specific modulus blend increased up 79% in comparison PA‐12 samples treatment. Additionally, resistance treated blends greatly exceeded observed alone. This research proposes methodology fabricate engineer HPP desktop SLS printers through secondary lower melting temperature material treatments.