3D printable CNTs and BN hybridized PEEK composites for thermal management applications

Yunus Emre Bozkurt, Uğur Emanetoğlu, Alptekin Yıldız, Özlem Türkarslan, Feride N. Şaşal, Hulya Cebeci*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)

Abstract

Thermally conductive and three-dimensional (3D) printable polyether ether ketone (PEEK) composite filaments can be feedstock for fabricating thermal management systems through additive manufacturing. The study aims to improve the thermal conductivity of PEEK through hybridization for the 3D printing process. Three different fillers, namely (i) micron-sized hexagonal boron nitride (m-BN), (ii) carbon nanotubes (CNTs), and (iii) nano-sized hexagonal boron nitride (n-BN) were selected to fabricate hybrid CNTs/m-BN/PEEK and n-BN/m-BN/PEEK composites at various weight ratios via melt mixing process. The highest thermal conductivities were reported for 1.62 W/mK with 1 wt.% CNTs/ 30 wt.% m-BN, and 1.77 W/mK with 40 wt.% n-BN/m-BN (mass ratio, 3:1). TGA and DSC analyses showed that incorporation of hybrid fillers into the PEEK matrix slightly improved decomposition temperatures; however, hybrid fillers did not lead to a significant change in Tg. All CNTs/h-BN hybridized PEEK composites were manufactured in filament form and successfully 3D printed. The CNTs/h-BN PEEK composites would also be good candidates as lightweight advanced packaging materials for injection molding.

Original languageEnglish
Pages (from-to)15086-15099
Number of pages14
JournalJournal of Materials Science
Volume58
Issue number38
DOIs
Publication statusPublished - Oct 2023

Bibliographical note

Publisher Copyright:
© 2023, The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature.

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