Functionalisation Effects on Mechanical, Electrical and Thermal Properties of 3D-Printed MWCNT/ABS Nanocomposites.

Zohdi, N; Nguyen, PQK; Zhang, YS; Yang, RC

Functionalisation Effects on Mechanical, Electrical and Thermal Properties of 3D-Printed MWCNT/ABS Nanocomposites.

Zohdi, N Nguyen, PQK Zhang, YS Yang, RC

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Publisher:: MDPI
Publication Type:: Journal Article
Citation:: Polymers (Basel), 2025, 17, (17), pp. 2428
Issue Date:: 2025-09-08

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Field	Value	Language
dc.contributor.author	Zohdi, N
dc.contributor.author	Nguyen, PQK
dc.contributor.author	Zhang, YS
dc.contributor.author	Yang, RC
dc.date.accessioned	2025-12-18T02:48:49Z
dc.date.available	2025-09-05
dc.date.available	2025-12-18T02:48:49Z
dc.date.issued	2025-09-08
dc.identifier.citation	Polymers (Basel), 2025, 17, (17), pp. 2428
dc.identifier.issn	2073-4360
dc.identifier.issn	2073-4360
dc.identifier.uri	http://hdl.handle.net/10453/190976
dc.description.abstract	While fused filament fabrication (FFF) has gained widespread popularity in additive manufacturing, its prevalent limitation in mechanical properties has prompted researchers to explore innovative solutions, with the creation of nanocomposites emerging as a promising solution. In this study, the effect of multi-walled carbon nanotubes (MWCNTs) on the material properties and morphology of acrylonitrile butadiene styrene (ABS)-based nanocomposites at various MWCNT concentrations of 0.1-1.5% is investigated. A 0.5% MWCNT addition was found to be the optimal content for mechanical, electrical, and thermal properties for FFF-printed specimens printed at longitudinal and transverse build orientations with profound improvement compared to pure ABS. Morphological analysis confirms the significant influence of air voids, low interlayer bonding and the agglomeration of additives on the properties of FFF-printed parts. Then, functionalisation methods are developed in this study for the effective modification of nanoadditives, and their influences on mechanical, electrical and thermal properties of FFF-printed nanocomposite parts are investigated. Both the covalent and non-covalent methods of functionalisation result in a uniform dispersion of nanoadditives with a positive impact on the material properties of those parts, especially for those printed at transverse build orientations.
dc.format	Electronic
dc.language	eng
dc.publisher	MDPI
dc.relation.ispartof	Polymers (Basel)
dc.relation.isbasedon	10.3390/polym17172428
dc.rights	info:eu-repo/semantics/openAccess
dc.subject	03 Chemical Sciences, 09 Engineering
dc.subject.classification	34 Chemical sciences
dc.subject.classification	40 Engineering
dc.title	Functionalisation Effects on Mechanical, Electrical and Thermal Properties of 3D-Printed MWCNT/ABS Nanocomposites.
dc.type	Journal Article
utslib.citation.volume	17
utslib.location.activity	Switzerland
utslib.for	03 Chemical Sciences
utslib.for	09 Engineering
pubs.organisational-group	University of Technology Sydney
pubs.organisational-group	University of Technology Sydney/Faculty of Engineering and Information Technology
pubs.organisational-group	University of Technology Sydney/Faculty of Engineering and Information Technology/School of Mechanical and Mechatronic Engineering
pubs.organisational-group	University of Technology Sydney/UTS Groups
pubs.organisational-group	University of Technology Sydney/UTS Groups/Centre for Advanced Manufacturing (CAM)
utslib.copyright.status	open_access	*
dc.rights.license	This work is licensed under a Creative Commons Attribution 4.0 International License (CC BY 4.0). To view a copy of this license, visit https://creativecommons.org/licenses/by/4.0/
dc.date.updated	2025-12-18T02:48:45Z
pubs.issue	17
pubs.publication-status	Published online
pubs.volume	17
utslib.citation.issue	17

Abstract:

While fused filament fabrication (FFF) has gained widespread popularity in additive manufacturing, its prevalent limitation in mechanical properties has prompted researchers to explore innovative solutions, with the creation of nanocomposites emerging as a promising solution. In this study, the effect of multi-walled carbon nanotubes (MWCNTs) on the material properties and morphology of acrylonitrile butadiene styrene (ABS)-based nanocomposites at various MWCNT concentrations of 0.1-1.5% is investigated. A 0.5% MWCNT addition was found to be the optimal content for mechanical, electrical, and thermal properties for FFF-printed specimens printed at longitudinal and transverse build orientations with profound improvement compared to pure ABS. Morphological analysis confirms the significant influence of air voids, low interlayer bonding and the agglomeration of additives on the properties of FFF-printed parts. Then, functionalisation methods are developed in this study for the effective modification of nanoadditives, and their influences on mechanical, electrical and thermal properties of FFF-printed nanocomposite parts are investigated. Both the covalent and non-covalent methods of functionalisation result in a uniform dispersion of nanoadditives with a positive impact on the material properties of those parts, especially for those printed at transverse build orientations.

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http://hdl.handle.net/10453/190976