3D printing processability of a thermally conductive compound based on carbon nanofiller-modified thermoplastic polyamide 12

Zhenxue Zhang; Eleni GKartzou; Simon Jetin; Dionisis Semitekolos; Panagiotis-Nektarios Pappas; Xiaoying Li; Anna Karatza; Panagiotis Zouboulis; Aikaterini-flora Trompeta; Nikolaos Koutroumanis; Costas Galiotis; Costas A. Charitidis; Hanshan Dong

doi:10.3390/polym14030470

3D printing processability of a thermally conductive compound based on carbon nanofiller-modified thermoplastic polyamide 12

Zhenxue Zhang, Eleni GKartzou, Simon Jetin, Dionisis Semitekolos, Panagiotis-Nektarios Pappas, Xiaoying Li, Anna Karatza, Panagiotis Zouboulis, Aikaterini-flora Trompeta, Nikolaos Koutroumanis, Costas Galiotis, Costas A. Charitidis, Hanshan Dong

Metallurgy and Materials

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Abstract

A polyamide (PA) 12-based thermoplastic composite was modified with carbon nanotubes (CNTs), CNTs grafted onto chopped carbon fibers (CFs), and graphene nanoplatelets (GNPs) with CNTs to improve its thermal conductivity for application as a heat sink in electronic components. The carbon-based nanofillers were examined by SEM and Raman. The laser flash method was used to measure the thermal diffusivity in order to calculate the thermal conductivity. Electrical conductivity measurements were made using a Keithley 6517B electrometer in the 2-point mode. The composite structure was examined by SEM and micro-CT. PA12 with 15 wt% of GNPs and 1 wt% CNTs demonstrated the highest thermal conductivity, and its processability was investigated, utilizing sequential interdependence tests to evaluate the composite material behavior during fused filament fabrication (FFF) 3D printing processing. Through this assessment, selected printing parameters were investigated to determine the optimum parametric combination and processability window for the composite material, revealing that the selected composition meets the necessary criteria to be processable with FFF.

Original language	English
Article number	470
Number of pages	16
Journal	Polymers
Volume	14
Issue number	3
DOIs	https://doi.org/10.3390/polym14030470
Publication status	Published - 25 Jan 2022

Bibliographical note

Funding Information:
This research was funded by the EU H2020 Project “Smart by Design and Intelligent by Architecture for turbine blade fan and structural components systems” (SMARTFAN) under Grant no. 760779.

Publisher Copyright:
© 2022 by the authors. Licensee MDPI, Basel, Switzerland.

Keywords

Polyamide 12
carbon nanofiller
Carbon nanotube
graphene nanoplatelet
3D printing
Thermal conductivity
compound
Graphene nanoplatelet
Compound
Carbon nanofiller

ASJC Scopus subject areas

General Chemistry
Polymers and Plastics

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ZhangZ20223DFinal published version, 10.5 MBLicence: Creative Commons: Attribution (CC BY)

Cite this

Zhang, Z., GKartzou, E., Jetin, S., Semitekolos, D., Pappas, P.-N., Li, X., Karatza, A., Zouboulis, P., Trompeta, A., Koutroumanis, N., Galiotis, C., Charitidis, C. A., & Dong, H. (2022). 3D printing processability of a thermally conductive compound based on carbon nanofiller-modified thermoplastic polyamide 12. Polymers, 14(3), Article 470. https://doi.org/10.3390/polym14030470

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abstract = "A polyamide (PA) 12-based thermoplastic composite was modified with carbon nanotubes (CNTs), CNTs grafted onto chopped carbon fibers (CFs), and graphene nanoplatelets (GNPs) with CNTs to improve its thermal conductivity for application as a heat sink in electronic components. The carbon-based nanofillers were examined by SEM and Raman. The laser flash method was used to measure the thermal diffusivity in order to calculate the thermal conductivity. Electrical conductivity measurements were made using a Keithley 6517B electrometer in the 2-point mode. The composite structure was examined by SEM and micro-CT. PA12 with 15 wt% of GNPs and 1 wt% CNTs demonstrated the highest thermal conductivity, and its processability was investigated, utilizing sequential interdependence tests to evaluate the composite material behavior during fused filament fabrication (FFF) 3D printing processing. Through this assessment, selected printing parameters were investigated to determine the optimum parametric combination and processability window for the composite material, revealing that the selected composition meets the necessary criteria to be processable with FFF.",

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AU - Zhang, Zhenxue

AU - GKartzou, Eleni

AU - Jetin, Simon

AU - Semitekolos, Dionisis

AU - Pappas, Panagiotis-Nektarios

AU - Li, Xiaoying

AU - Karatza, Anna

AU - Zouboulis, Panagiotis

AU - Trompeta, Aikaterini-flora

AU - Koutroumanis, Nikolaos

AU - Galiotis, Costas

AU - Charitidis, Costas A.

AU - Dong, Hanshan

N1 - Funding Information: This research was funded by the EU H2020 Project “Smart by Design and Intelligent by Architecture for turbine blade fan and structural components systems” (SMARTFAN) under Grant no. 760779. Publisher Copyright: © 2022 by the authors. Licensee MDPI, Basel, Switzerland.

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N2 - A polyamide (PA) 12-based thermoplastic composite was modified with carbon nanotubes (CNTs), CNTs grafted onto chopped carbon fibers (CFs), and graphene nanoplatelets (GNPs) with CNTs to improve its thermal conductivity for application as a heat sink in electronic components. The carbon-based nanofillers were examined by SEM and Raman. The laser flash method was used to measure the thermal diffusivity in order to calculate the thermal conductivity. Electrical conductivity measurements were made using a Keithley 6517B electrometer in the 2-point mode. The composite structure was examined by SEM and micro-CT. PA12 with 15 wt% of GNPs and 1 wt% CNTs demonstrated the highest thermal conductivity, and its processability was investigated, utilizing sequential interdependence tests to evaluate the composite material behavior during fused filament fabrication (FFF) 3D printing processing. Through this assessment, selected printing parameters were investigated to determine the optimum parametric combination and processability window for the composite material, revealing that the selected composition meets the necessary criteria to be processable with FFF.

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3D printing processability of a thermally conductive compound based on carbon nanofiller-modified thermoplastic polyamide 12

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

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