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Wearable and Stretchable SEBS/CB Polymer Conductive Strand as a Piezoresistive Strain Sensor

A wearable and stretchable strain sensor with a gauge factor above 23 was prepared using a simple and effective technique. Conducting nanocomposite strands were prepared from styrene-b-(ethylene-co-butylene)-b-styrene triblock copolymer (SEBS) and carbon black (CB) through a solvent-processing metho...

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Autores principales: Jamatia, Thaiskang, Matyas, Jiri, Olejnik, Robert, Danova, Romana, Maloch, Jaroslav, Skoda, David, Slobodian, Petr, Kuritka, Ivo
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10096618/
https://www.ncbi.nlm.nih.gov/pubmed/37050233
http://dx.doi.org/10.3390/polym15071618
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author Jamatia, Thaiskang
Matyas, Jiri
Olejnik, Robert
Danova, Romana
Maloch, Jaroslav
Skoda, David
Slobodian, Petr
Kuritka, Ivo
author_facet Jamatia, Thaiskang
Matyas, Jiri
Olejnik, Robert
Danova, Romana
Maloch, Jaroslav
Skoda, David
Slobodian, Petr
Kuritka, Ivo
author_sort Jamatia, Thaiskang
collection PubMed
description A wearable and stretchable strain sensor with a gauge factor above 23 was prepared using a simple and effective technique. Conducting nanocomposite strands were prepared from styrene-b-(ethylene-co-butylene)-b-styrene triblock copolymer (SEBS) and carbon black (CB) through a solvent-processing method that uses a syringe pump. This novel nanocomposite preparation technique is a straightforward and cost-effective process and is reported in the literature for the first time. The work included two stages: the flexible nanocomposite preparation stage and the piezoresistive sensor stage. Depending on its molecular structure, the thermoelastic polymer SEBS is highly resilient to stress and strain. The main aim of this work is to fabricate a highly flexible and piezoresistive nanocomposite fibre/strand. Among the prepared composites, a composite corresponding to a composition just above the percolation threshold was selected to prepare the strain sensor, which exhibited good flexibility and conductivity and a large piezoresistive effect that was linearly dependent on the applied strain. The prepared nanocomposite sensor was stitched onto a sports T-shirt. Commercially available knee and elbow sleeves were also purchased, and the nanocomposite SEBS/CB strands were sewn separately on the two sleeves. The results showed a high sensitivity of the sensing element in the case of breathing activity (normal breathing, a 35% change, and deep breathing at 135%, respectively). In the case of knee and elbow movements, simultaneous measurements were performed and found that the sensor was able to detect movement cycles during walking.
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spelling pubmed-100966182023-04-13 Wearable and Stretchable SEBS/CB Polymer Conductive Strand as a Piezoresistive Strain Sensor Jamatia, Thaiskang Matyas, Jiri Olejnik, Robert Danova, Romana Maloch, Jaroslav Skoda, David Slobodian, Petr Kuritka, Ivo Polymers (Basel) Article A wearable and stretchable strain sensor with a gauge factor above 23 was prepared using a simple and effective technique. Conducting nanocomposite strands were prepared from styrene-b-(ethylene-co-butylene)-b-styrene triblock copolymer (SEBS) and carbon black (CB) through a solvent-processing method that uses a syringe pump. This novel nanocomposite preparation technique is a straightforward and cost-effective process and is reported in the literature for the first time. The work included two stages: the flexible nanocomposite preparation stage and the piezoresistive sensor stage. Depending on its molecular structure, the thermoelastic polymer SEBS is highly resilient to stress and strain. The main aim of this work is to fabricate a highly flexible and piezoresistive nanocomposite fibre/strand. Among the prepared composites, a composite corresponding to a composition just above the percolation threshold was selected to prepare the strain sensor, which exhibited good flexibility and conductivity and a large piezoresistive effect that was linearly dependent on the applied strain. The prepared nanocomposite sensor was stitched onto a sports T-shirt. Commercially available knee and elbow sleeves were also purchased, and the nanocomposite SEBS/CB strands were sewn separately on the two sleeves. The results showed a high sensitivity of the sensing element in the case of breathing activity (normal breathing, a 35% change, and deep breathing at 135%, respectively). In the case of knee and elbow movements, simultaneous measurements were performed and found that the sensor was able to detect movement cycles during walking. MDPI 2023-03-24 /pmc/articles/PMC10096618/ /pubmed/37050233 http://dx.doi.org/10.3390/polym15071618 Text en © 2023 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
Jamatia, Thaiskang
Matyas, Jiri
Olejnik, Robert
Danova, Romana
Maloch, Jaroslav
Skoda, David
Slobodian, Petr
Kuritka, Ivo
Wearable and Stretchable SEBS/CB Polymer Conductive Strand as a Piezoresistive Strain Sensor
title Wearable and Stretchable SEBS/CB Polymer Conductive Strand as a Piezoresistive Strain Sensor
title_full Wearable and Stretchable SEBS/CB Polymer Conductive Strand as a Piezoresistive Strain Sensor
title_fullStr Wearable and Stretchable SEBS/CB Polymer Conductive Strand as a Piezoresistive Strain Sensor
title_full_unstemmed Wearable and Stretchable SEBS/CB Polymer Conductive Strand as a Piezoresistive Strain Sensor
title_short Wearable and Stretchable SEBS/CB Polymer Conductive Strand as a Piezoresistive Strain Sensor
title_sort wearable and stretchable sebs/cb polymer conductive strand as a piezoresistive strain sensor
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10096618/
https://www.ncbi.nlm.nih.gov/pubmed/37050233
http://dx.doi.org/10.3390/polym15071618
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