Cargando…
Electromechanical Properties of 3D-Printed Stretchable Carbon Fiber Composites
The addition of fillers has been implemented in fused filament fabrication (FFF), and robust carbon fillers have been found to improve the mechanical, electrical, and thermal properties of 3D-printed matrices. However, in stretchable matrices, the use of fillers imposes significant challenges relate...
Autores principales: | , , , |
---|---|
Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2022
|
Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9610631/ https://www.ncbi.nlm.nih.gov/pubmed/36296085 http://dx.doi.org/10.3390/mi13101732 |
_version_ | 1784819322851426304 |
---|---|
author | Salo, Teemu Di Vito, Donato Halme, Aki Vanhala, Jukka |
author_facet | Salo, Teemu Di Vito, Donato Halme, Aki Vanhala, Jukka |
author_sort | Salo, Teemu |
collection | PubMed |
description | The addition of fillers has been implemented in fused filament fabrication (FFF), and robust carbon fillers have been found to improve the mechanical, electrical, and thermal properties of 3D-printed matrices. However, in stretchable matrices, the use of fillers imposes significant challenges related to quality and durability. In this work, we show that long carbon staple fibers in the form of permeable carbon fiber cloth (CFC) can be placed into a stretchable thermoplastic polyurethane (TPU) matrix to improve the system. Four CFC sample series (nominally 53–159-µm-thick CFC layers) were prepared with a permeable and compliant thin CFC layer and a highly conductive and stiff thick CFC layer. The sample series was tested with single pull-up tests and cyclic tensile tests with 10,000 cycles and was further studied with digital image correlation (DIC) analyses. The results showed that embedded CFC layers in a TPU matrix can be used for stretchable 3D-printed electronics structures. Samples with a thin 53 µm CFC layer retained electrical properties at 50% cyclic tensile deformations, whereas the samples with a thick >150-µm CFC layer exhibited the lowest resistance (5 Ω/10 mm). Between those structures, the 106-µm-thick CFC layer exhibited balanced electromechanical properties, with resistance changes of 0.5% in the cyclic tests after the orientation of the samples. Furthermore, the suitability of the structure as a sensor was estimated. |
format | Online Article Text |
id | pubmed-9610631 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-96106312022-10-28 Electromechanical Properties of 3D-Printed Stretchable Carbon Fiber Composites Salo, Teemu Di Vito, Donato Halme, Aki Vanhala, Jukka Micromachines (Basel) Article The addition of fillers has been implemented in fused filament fabrication (FFF), and robust carbon fillers have been found to improve the mechanical, electrical, and thermal properties of 3D-printed matrices. However, in stretchable matrices, the use of fillers imposes significant challenges related to quality and durability. In this work, we show that long carbon staple fibers in the form of permeable carbon fiber cloth (CFC) can be placed into a stretchable thermoplastic polyurethane (TPU) matrix to improve the system. Four CFC sample series (nominally 53–159-µm-thick CFC layers) were prepared with a permeable and compliant thin CFC layer and a highly conductive and stiff thick CFC layer. The sample series was tested with single pull-up tests and cyclic tensile tests with 10,000 cycles and was further studied with digital image correlation (DIC) analyses. The results showed that embedded CFC layers in a TPU matrix can be used for stretchable 3D-printed electronics structures. Samples with a thin 53 µm CFC layer retained electrical properties at 50% cyclic tensile deformations, whereas the samples with a thick >150-µm CFC layer exhibited the lowest resistance (5 Ω/10 mm). Between those structures, the 106-µm-thick CFC layer exhibited balanced electromechanical properties, with resistance changes of 0.5% in the cyclic tests after the orientation of the samples. Furthermore, the suitability of the structure as a sensor was estimated. MDPI 2022-10-13 /pmc/articles/PMC9610631/ /pubmed/36296085 http://dx.doi.org/10.3390/mi13101732 Text en © 2022 by the authors. https://creativecommons.org/licenses/by/4.0/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/). |
spellingShingle | Article Salo, Teemu Di Vito, Donato Halme, Aki Vanhala, Jukka Electromechanical Properties of 3D-Printed Stretchable Carbon Fiber Composites |
title | Electromechanical Properties of 3D-Printed Stretchable Carbon Fiber Composites |
title_full | Electromechanical Properties of 3D-Printed Stretchable Carbon Fiber Composites |
title_fullStr | Electromechanical Properties of 3D-Printed Stretchable Carbon Fiber Composites |
title_full_unstemmed | Electromechanical Properties of 3D-Printed Stretchable Carbon Fiber Composites |
title_short | Electromechanical Properties of 3D-Printed Stretchable Carbon Fiber Composites |
title_sort | electromechanical properties of 3d-printed stretchable carbon fiber composites |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9610631/ https://www.ncbi.nlm.nih.gov/pubmed/36296085 http://dx.doi.org/10.3390/mi13101732 |
work_keys_str_mv | AT saloteemu electromechanicalpropertiesof3dprintedstretchablecarbonfibercomposites AT divitodonato electromechanicalpropertiesof3dprintedstretchablecarbonfibercomposites AT halmeaki electromechanicalpropertiesof3dprintedstretchablecarbonfibercomposites AT vanhalajukka electromechanicalpropertiesof3dprintedstretchablecarbonfibercomposites |