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Synergistic Enhancement Properties of a Flexible Integrated PAN/PVDF Piezoelectric Sensor for Human Posture Recognition

The flexible pressure sensor has attracted much attention due to its wearable and conformal advantage. All the same, enhancing its electrical and structural properties is still a huge challenge. Herein, a flexible integrated pressure sensor (FIPS) composed of a solid silicone rubber matrix, composit...

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Autores principales: Mu, Jiliang, Xian, Shuai, Yu, Junbin, Zhao, Juanhong, Song, Jinsha, Li, Zhengyang, Hou, Xiaojuan, Chou, Xiujian, He, Jian
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9000213/
https://www.ncbi.nlm.nih.gov/pubmed/35407273
http://dx.doi.org/10.3390/nano12071155
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author Mu, Jiliang
Xian, Shuai
Yu, Junbin
Zhao, Juanhong
Song, Jinsha
Li, Zhengyang
Hou, Xiaojuan
Chou, Xiujian
He, Jian
author_facet Mu, Jiliang
Xian, Shuai
Yu, Junbin
Zhao, Juanhong
Song, Jinsha
Li, Zhengyang
Hou, Xiaojuan
Chou, Xiujian
He, Jian
author_sort Mu, Jiliang
collection PubMed
description The flexible pressure sensor has attracted much attention due to its wearable and conformal advantage. All the same, enhancing its electrical and structural properties is still a huge challenge. Herein, a flexible integrated pressure sensor (FIPS) composed of a solid silicone rubber matrix, composited with piezoelectric powers of polyacrylonitrile/Polyvinylidene fluoride (PAN/PVDF) and conductive silver-coated glass microspheres is first proposed. Specifically, the mass ratio of the PAN/PVDF and the rubber is up to 4:5 after mechanical mixing. The output voltage of the sensor with composite PAN/PVDF reaches 49 V, which is 2.57 and 3.06 times that with the single components, PAN and PVDF, respectively. In the range from 0 to 800 kPa, its linearity of voltage and current are all close to 0.986. Meanwhile, the sensor retains high voltage and current sensitivities of 42 mV/kPa and 0.174 nA/kPa, respectively. Furthermore, the minimum response time is 43 ms at a frequency range of 1–2.5 Hz in different postures, and the stability is verified over 10,000 cycles. In practical measurements, the designed FIPS showed excellent recognition abilities for various gaits and different bending degrees of fingers. This work provides a novel strategy to improve the flexible pressure sensor, and demonstrates an attractive potential in terms of human health and motion monitoring.
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spelling pubmed-90002132022-04-12 Synergistic Enhancement Properties of a Flexible Integrated PAN/PVDF Piezoelectric Sensor for Human Posture Recognition Mu, Jiliang Xian, Shuai Yu, Junbin Zhao, Juanhong Song, Jinsha Li, Zhengyang Hou, Xiaojuan Chou, Xiujian He, Jian Nanomaterials (Basel) Article The flexible pressure sensor has attracted much attention due to its wearable and conformal advantage. All the same, enhancing its electrical and structural properties is still a huge challenge. Herein, a flexible integrated pressure sensor (FIPS) composed of a solid silicone rubber matrix, composited with piezoelectric powers of polyacrylonitrile/Polyvinylidene fluoride (PAN/PVDF) and conductive silver-coated glass microspheres is first proposed. Specifically, the mass ratio of the PAN/PVDF and the rubber is up to 4:5 after mechanical mixing. The output voltage of the sensor with composite PAN/PVDF reaches 49 V, which is 2.57 and 3.06 times that with the single components, PAN and PVDF, respectively. In the range from 0 to 800 kPa, its linearity of voltage and current are all close to 0.986. Meanwhile, the sensor retains high voltage and current sensitivities of 42 mV/kPa and 0.174 nA/kPa, respectively. Furthermore, the minimum response time is 43 ms at a frequency range of 1–2.5 Hz in different postures, and the stability is verified over 10,000 cycles. In practical measurements, the designed FIPS showed excellent recognition abilities for various gaits and different bending degrees of fingers. This work provides a novel strategy to improve the flexible pressure sensor, and demonstrates an attractive potential in terms of human health and motion monitoring. MDPI 2022-03-31 /pmc/articles/PMC9000213/ /pubmed/35407273 http://dx.doi.org/10.3390/nano12071155 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
Mu, Jiliang
Xian, Shuai
Yu, Junbin
Zhao, Juanhong
Song, Jinsha
Li, Zhengyang
Hou, Xiaojuan
Chou, Xiujian
He, Jian
Synergistic Enhancement Properties of a Flexible Integrated PAN/PVDF Piezoelectric Sensor for Human Posture Recognition
title Synergistic Enhancement Properties of a Flexible Integrated PAN/PVDF Piezoelectric Sensor for Human Posture Recognition
title_full Synergistic Enhancement Properties of a Flexible Integrated PAN/PVDF Piezoelectric Sensor for Human Posture Recognition
title_fullStr Synergistic Enhancement Properties of a Flexible Integrated PAN/PVDF Piezoelectric Sensor for Human Posture Recognition
title_full_unstemmed Synergistic Enhancement Properties of a Flexible Integrated PAN/PVDF Piezoelectric Sensor for Human Posture Recognition
title_short Synergistic Enhancement Properties of a Flexible Integrated PAN/PVDF Piezoelectric Sensor for Human Posture Recognition
title_sort synergistic enhancement properties of a flexible integrated pan/pvdf piezoelectric sensor for human posture recognition
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9000213/
https://www.ncbi.nlm.nih.gov/pubmed/35407273
http://dx.doi.org/10.3390/nano12071155
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