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Piezoresistive Properties of 3D-Printed Polylactic Acid (PLA) Nanocomposites

An increasing interest is focused on the application of 3D printing for sensor manufacturing. Using 3D printing technology offers a new approach to the fabrication of sensors that are both geometrically and functionally complex. This work presents the analysis of the 3D-printed thermoplastic nanocom...

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Autores principales: Hashemi Sanatgar, Razieh, Cayla, Aurélie, Guan, Jinping, Chen, Guoqiang, Nierstrasz, Vincent, Campagne, Christine
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9331926/
https://www.ncbi.nlm.nih.gov/pubmed/35893945
http://dx.doi.org/10.3390/polym14152981
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author Hashemi Sanatgar, Razieh
Cayla, Aurélie
Guan, Jinping
Chen, Guoqiang
Nierstrasz, Vincent
Campagne, Christine
author_facet Hashemi Sanatgar, Razieh
Cayla, Aurélie
Guan, Jinping
Chen, Guoqiang
Nierstrasz, Vincent
Campagne, Christine
author_sort Hashemi Sanatgar, Razieh
collection PubMed
description An increasing interest is focused on the application of 3D printing for sensor manufacturing. Using 3D printing technology offers a new approach to the fabrication of sensors that are both geometrically and functionally complex. This work presents the analysis of the 3D-printed thermoplastic nanocomposites compress under the applied force. The response for the corresponding resistance changes versus applied load is obtained to evaluate the effectiveness of the printed layer as a pressure/force sensor. Multi-walled carbon nanotubes (MWNT) and high-structured carbon black (Ketjenblack) (KB) in the polylactic acid (PLA) matrix were extruded to develop 3D-printable filaments. The electrical and piezoresistive behaviors of the created 3D-printed layers were investigated. The percolation threshold of MWNT and KB 3D-printed layers are 1 wt.% and 4 wt.%, respectively. The PLA/1 wt.% MWNT 3D-printed layers with 1 mm thickness exhibit a negative pressure coefficient (NPC) characterized by a decrease of about one decade in resistance with increasing compressive loadings up to 18 N with a maximum strain up to about 16%. In the cyclic mode with a 1 N/min force rate, the PLA/1 wt.% MWNT 3D-printed layers showed good performance with the piezoresistive coefficient or gauge factor (G) of 7.6 obtained with the amplitude of the piezoresistive response (A(r)) of about -0.8. KB composites could not show stable piezoresistive responses in a cyclic mode. However, under high force rate compression, the PLA/4 wt.% KB 3D-printed layers led to responses of large sensitivity (A(r) = −0.90) and were exempt from noise with a high value of G = 47.6 in the first cycle, which is a highly efficient piezoresistive behavior.
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spelling pubmed-93319262022-07-29 Piezoresistive Properties of 3D-Printed Polylactic Acid (PLA) Nanocomposites Hashemi Sanatgar, Razieh Cayla, Aurélie Guan, Jinping Chen, Guoqiang Nierstrasz, Vincent Campagne, Christine Polymers (Basel) Article An increasing interest is focused on the application of 3D printing for sensor manufacturing. Using 3D printing technology offers a new approach to the fabrication of sensors that are both geometrically and functionally complex. This work presents the analysis of the 3D-printed thermoplastic nanocomposites compress under the applied force. The response for the corresponding resistance changes versus applied load is obtained to evaluate the effectiveness of the printed layer as a pressure/force sensor. Multi-walled carbon nanotubes (MWNT) and high-structured carbon black (Ketjenblack) (KB) in the polylactic acid (PLA) matrix were extruded to develop 3D-printable filaments. The electrical and piezoresistive behaviors of the created 3D-printed layers were investigated. The percolation threshold of MWNT and KB 3D-printed layers are 1 wt.% and 4 wt.%, respectively. The PLA/1 wt.% MWNT 3D-printed layers with 1 mm thickness exhibit a negative pressure coefficient (NPC) characterized by a decrease of about one decade in resistance with increasing compressive loadings up to 18 N with a maximum strain up to about 16%. In the cyclic mode with a 1 N/min force rate, the PLA/1 wt.% MWNT 3D-printed layers showed good performance with the piezoresistive coefficient or gauge factor (G) of 7.6 obtained with the amplitude of the piezoresistive response (A(r)) of about -0.8. KB composites could not show stable piezoresistive responses in a cyclic mode. However, under high force rate compression, the PLA/4 wt.% KB 3D-printed layers led to responses of large sensitivity (A(r) = −0.90) and were exempt from noise with a high value of G = 47.6 in the first cycle, which is a highly efficient piezoresistive behavior. MDPI 2022-07-22 /pmc/articles/PMC9331926/ /pubmed/35893945 http://dx.doi.org/10.3390/polym14152981 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
Hashemi Sanatgar, Razieh
Cayla, Aurélie
Guan, Jinping
Chen, Guoqiang
Nierstrasz, Vincent
Campagne, Christine
Piezoresistive Properties of 3D-Printed Polylactic Acid (PLA) Nanocomposites
title Piezoresistive Properties of 3D-Printed Polylactic Acid (PLA) Nanocomposites
title_full Piezoresistive Properties of 3D-Printed Polylactic Acid (PLA) Nanocomposites
title_fullStr Piezoresistive Properties of 3D-Printed Polylactic Acid (PLA) Nanocomposites
title_full_unstemmed Piezoresistive Properties of 3D-Printed Polylactic Acid (PLA) Nanocomposites
title_short Piezoresistive Properties of 3D-Printed Polylactic Acid (PLA) Nanocomposites
title_sort piezoresistive properties of 3d-printed polylactic acid (pla) nanocomposites
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9331926/
https://www.ncbi.nlm.nih.gov/pubmed/35893945
http://dx.doi.org/10.3390/polym14152981
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