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

Chavez, Luis A.; Ibave, Paulina; Hassan, Md Sahid; Hall‐Sanchez, Samuel E.; Billah, Kazi Masum; Leyva, Alba; Marquez, Cory; Espalin, David; Torres, Sabrina; Robison, Thomas; Lin, Yirong

doi:10.1002/app.52290

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

Journal Article · 25 February 2022 · Journal of Applied Polymer Science

DOI: https://doi.org/10.1002/app.52290 · OSTI ID:1958033

Chavez, Luis A. ^[1]; Ibave, Paulina ^[2];

^[2]; Hall‐Sanchez, Samuel E. ^[2]; Billah, Kazi Masum ^[3]; Leyva, Alba ^[2]; Marquez, Cory ^[2]; Espalin, David ^[2]; Torres, Sabrina ^[4]; Robison, Thomas ^[4]; Lin, Yirong ^[2]

Univ. of Texas at El Paso, TX (United States); The University of Texas at El Paso
Univ. of Texas at El Paso, TX (United States)
Univ. of Houston, TX (United States)
Kansas City National Security Campus (KCNSC), Kansas City, MO (United States)

Herein, a high-performance polymer (HPP) (polyether ether ketone, PEEK) blended with a commercial low-temperature polymer (polyamide 12, PA-12) was fabricated using a low-temperature 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 mechanical modulus of the blend was increased up to 79% in comparison to printed PA-12 samples with heat treatment. Additionally, the thermal resistance of the treated blends greatly exceeded the properties observed using PA-12 alone. This research proposes a methodology to fabricate and engineer HPP using desktop SLS printers through a secondary lower melting temperature material and heat treatments.

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Research Organization:: Univ. of Texas at El Paso, TX (United States)

Sponsoring Organization:: USDOE

Grant/Contract Number:: NA0003865; FE0027502

OSTI ID:: 1958033

Journal Information:: Journal of Applied Polymer Science, Journal Name: Journal of Applied Polymer Science Journal Issue: 23 Vol. 139; ISSN 0021-8995

Publisher:: WileyCopyright Statement

Country of Publication:: United States

Language:: English

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

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