3D and 4D printing of PETG–ABS–Fe3O4 nanocomposites with supreme remotely driven magneto-thermal shape-memory performance

Mirasadi, K, Rahmatabadi, D, Ghasemi, I, Khodaei, M, Baniassadi, M, Bodaghi, M ORCID logoORCID: https://orcid.org/0000-0002-0707-944X and Baghani, M, 2024. 3D and 4D printing of PETG–ABS–Fe3O4 nanocomposites with supreme remotely driven magneto-thermal shape-memory performance. Polymers, 16 (10): 1398. ISSN 2073-4360

[thumbnail of 1896288_Bodaghi.pdf]
Preview
Text
1896288_Bodaghi.pdf - Published version

Download (8MB) | Preview

Abstract

This study introduces novel PETG–ABS–Fe3O4 nanocomposites that offer impressive 3D- and 4D-printing capabilities. These nanocomposites can be remotely stimulated through the application of a temperature-induced magnetic field. A direct granule-based FDM printer equipped with a pneumatic system to control the output melt flow is utilized to print the composites. This addresses challenges associated with using a high weight percentage of nanoparticles and the lack of control over geometry when producing precise and continuous filaments. SEM results showed that the interface of the matrix was smooth and uniform, and the increase in nanoparticles weakened the interface of the printed layers. The ultimate tensile strength (UTS) increased from 25.98 MPa for the pure PETG–ABS sample to 26.3 MPa and 27.05 MPa for the 10% and 15% Fe3O4 nanocomposites, respectively. This increase in tensile strength was accompanied by a decrease in elongation from 15.15% to 13.94% and 12.78%. The results of the shape-memory performance reveal that adding iron oxide not only enables indirect and remote recovery but also improves the shape-memory effect. Improving heat transfer and strengthening the elastic component can increase the rate and amount of shape recovery. Nanocomposites containing 20% iron oxide demonstrate superior shape-memory performance when subjected to direct heat stimulation and a magnetic field, despite exhibiting low print quality and poor tensile strength. Smart nanocomposites with magnetic remote-control capabilities provide opportunities for 4D printing in diverse industries, particularly in medicine, where rapid speed and remote control are essential for minimally invasive procedures.

Item Type: Journal article
Publication Title: Polymers
Creators: Mirasadi, K., Rahmatabadi, D., Ghasemi, I., Khodaei, M., Baniassadi, M., Bodaghi, M. and Baghani, M.
Publisher: MDPI
Date: 14 May 2024
Volume: 16
Number: 10
ISSN: 2073-4360
Identifiers:
Number
Type
10.3390/polym16101398
DOI
1896288
Other
Rights: © 2024 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
Divisions: Schools > School of Science and Technology
Record created by: Jonathan Gallacher
Date Added: 22 May 2024 09:14
Last Modified: 22 May 2024 09:14
URI: https://irep.ntu.ac.uk/id/eprint/51462

Actions (login required)

Edit View Edit View

Statistics

Views

Views per month over past year

Downloads

Downloads per month over past year