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Rahmatabadi, D., Bayati, A., Khajepour, M., Mirasadi, K., Ghasemi, I., Baniassadi, M., Abrinia, K., Bodaghi, M. 
ORCID: 0000-0002-0707-944X and Baghani, M.,
2024.
Poly(ethylene terephthalate) glycol/carbon black composites for 4D printing.
Materials Chemistry and Physics, 325: 129737.
ISSN 0254-0584
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Text
1917054_Bodaghi.pdf - Published version Download (14MB) | Preview |
Abstract
This research introduces PETG-CB (poly(ethylene terephthalate) glycol modified with carbon black) composites, a new class of shape memory polymers 4D printed using the Fused Deposition Modeling (FDM) method. Nanocomposites with varying concentrations of CB (0.5 %, 1 %, and 3 % by weight) are developed to enhance the functional performance of PETG in 4D printing applications. Comprehensive characterization at the micro- and macro-scale, including dynamic thermal mechanical analysis (DMTA), scanning electron microscopy (SEM), and mechanical testing, is employed to assess the viscoelastic behavior, microstructural integrity, and mechanical strength under thermal stimulation. Experimental results reveal that CB addition significantly alters the glass transition temperature and improves mechanical properties, with the 1 % CB composite demonstrating optimal tensile strength and enhanced shape memory effects. SEM analysis confirms a uniform distribution of CB particles, contributing to the improved mechanical properties and printability of the nanocomposites. The shape memory tests show excellent recovery rates above 97 %, with faster recovery observed in composites with higher CB content. These findings highlight the potential of PETG-CB composites in applications requiring rapid response and high mechanical performance, making them promising materials for future advancements in the 4D printing technology.
| Item Type: | Journal article | ||||||||
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| Publication Title: | Materials Chemistry and Physics | ||||||||
| Creators: | Rahmatabadi, D., Bayati, A., Khajepour, M., Mirasadi, K., Ghasemi, I., Baniassadi, M., Abrinia, K., Bodaghi, M. and Baghani, M. | ||||||||
| Publisher: | Elsevier BV | ||||||||
| Date: | 1 October 2024 | ||||||||
| Volume: | 325 | ||||||||
| ISSN: | 0254-0584 | ||||||||
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| Rights: | © 2024 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/). | ||||||||
| Divisions: | Schools > School of Science and Technology | ||||||||
| Record created by: | Melissa Cornwell | ||||||||
| Date Added: | 22 Jul 2024 10:02 | ||||||||
| Last Modified: | 22 Jul 2024 10:02 | ||||||||
| URI: | https://irep.ntu.ac.uk/id/eprint/51799 |
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