Strain and Pressure Sensors Based on MWCNT/PDMS for Human Motion/Perception Detection

Zhao, Xin; Mei, Dong; Tang, Gangqiang; Zhao, Chun; Wang, Jianfeng; Luo, Minzhou; Li, Lijie; Wang, Yanjie

doi:10.3390/polym15061386

Journal article 285 views 29 downloads

Strain and Pressure Sensors Based on MWCNT/PDMS for Human Motion/Perception Detection

Xin Zhao

, Dong Mei

, Gangqiang Tang

, Chun Zhao, Jianfeng Wang, Minzhou Luo, Lijie Li

, Yanjie Wang

Polymers, Volume: 15, Issue: 6, Start page: 1386

Swansea University Author: Lijie Li

PDF | Version of Record

© 2023 by the authors. 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/).
Download (4.66MB)

Check full text

DOI (Published version): 10.3390/polym15061386

Abstract

Flexible wearable devices have attracted wide attention in capacious fields because of their real-time and continuous monitoring of human information. The development of flexible sensors and corresponding integration with wearable devices is of great significance to build smart wearable devices. In...

Full description

Published in:	Polymers
ISSN:	2073-4360
Published:	MDPI AG 2023
Online Access:	Check full text
URI:	https://cronfa.swan.ac.uk/Record/cronfa63092
Tags:	Add Tag No Tags, Be the first to tag this record!

first_indexed	2023-04-05T21:00:51Z
last_indexed	2023-04-06T03:23:56Z
id	cronfa63092
recordtype	SURis
fullrecord	<?xml version="1.0" encoding="utf-8"?><rfc1807 xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema"><bib-version>v2</bib-version><id>63092</id><entry>2023-04-05</entry><title>Strain and Pressure Sensors Based on MWCNT/PDMS for Human Motion/Perception Detection</title><swanseaauthors><author><sid>ed2c658b77679a28e4c1dcf95af06bd6</sid><ORCID>0000-0003-4630-7692</ORCID><firstname>Lijie</firstname><surname>Li</surname><name>Lijie Li</name><active>true</active><ethesisStudent>false</ethesisStudent></author></swanseaauthors><date>2023-04-05</date><deptcode>EEEG</deptcode><abstract>Flexible wearable devices have attracted wide attention in capacious fields because of their real-time and continuous monitoring of human information. The development of flexible sensors and corresponding integration with wearable devices is of great significance to build smart wearable devices. In this work, multi-walled carbon nanotube/polydimethylsiloxane-based (MWCNT/PDMS) resistive strain sensors and pressure sensors were developed to integrate a smart glove for human motion/perception detection. Firstly, MWCNT/PDMS conductive layers with excellent electrical and mechanical properties (resistivity of 2.897 KΩ · cm, elongation at break of 145%) were fabricated via a facile scraping-coating method. Then, a resistive strain sensor with a stable homogeneous structure was developed due to the similar physicochemical properties of the PDMS encapsulation layer and MWCNT/PDMS sensing layer. The resistance changes of the prepared strain sensor exhibited a great linear relationship with the strain. Moreover, it could output obvious repeatable dynamic response signals. It still had good cyclic stability and durability after 180° bending/restoring cycles and 40% stretching/releasing cycles. Secondly, MWCNT/PDMS layers with bioinspired spinous microstructures were formed by a simple sandpaper retransfer process and then assembled face-to-face into a resistive pressure sensor. The pressure sensor presented a linear relationship of relative resistance change and pressure in the range of 0–31.83 KPa with a sensitivity of 0.026 KPa−1, and a sensitivity of 2.769 × 10−4 KPa−1 over 32 KPa. Furthermore, it responded quickly and kept good cycle stability at 25.78 KPa dynamic loop over 2000 s. Finally, as parts of a wearable device, resistive strain sensors and a pressure sensor were then integrated into different areas of the glove. The cost-effective, multi-functional smart glove can recognize finger bending, gestures, and external mechanical stimuli, which holds great potential in the fields of medical healthcare, human-computer cooperation, and so on.</abstract><type>Journal Article</type><journal>Polymers</journal><volume>15</volume><journalNumber>6</journalNumber><paginationStart>1386</paginationStart><paginationEnd/><publisher>MDPI AG</publisher><placeOfPublication/><isbnPrint/><isbnElectronic/><issnPrint/><issnElectronic>2073-4360</issnElectronic><keywords>MWCNT/PDMS; pressure sensor; smart glove; strain sensor; wearable devices.</keywords><publishedDay>10</publishedDay><publishedMonth>3</publishedMonth><publishedYear>2023</publishedYear><publishedDate>2023-03-10</publishedDate><doi>10.3390/polym15061386</doi><url>http://dx.doi.org/10.3390/polym15061386</url><notes/><college>COLLEGE NANME</college><department>Electronic and Electrical Engineering</department><CollegeCode>COLLEGE CODE</CollegeCode><DepartmentCode>EEEG</DepartmentCode><institution>Swansea University</institution><apcterm>Another institution paid the OA fee</apcterm><funders>The National Natural Science Foundation of China (51975184), the Changzhou Sci &Tech Program (CE20215051), and the National Key Research and Development Program of China (2020YFB1312900). The authors gratefully acknowledge the supports.</funders><projectreference/><lastEdited>2023-05-18T14:58:04.8603481</lastEdited><Created>2023-04-05T21:57:58.0007545</Created><path><level id="1">Faculty of Science and Engineering</level><level id="2">School of Aerospace, Civil, Electrical, General and Mechanical Engineering - Electronic and Electrical Engineering</level></path><authors><author><firstname>Xin</firstname><surname>Zhao</surname><orcid>0000-0002-9698-8767</orcid><order>1</order></author><author><firstname>Dong</firstname><surname>Mei</surname><orcid>0000-0001-5943-9470</orcid><order>2</order></author><author><firstname>Gangqiang</firstname><surname>Tang</surname><orcid>0000-0002-1994-8438</orcid><order>3</order></author><author><firstname>Chun</firstname><surname>Zhao</surname><order>4</order></author><author><firstname>Jianfeng</firstname><surname>Wang</surname><order>5</order></author><author><firstname>Minzhou</firstname><surname>Luo</surname><order>6</order></author><author><firstname>Lijie</firstname><surname>Li</surname><orcid>0000-0003-4630-7692</orcid><order>7</order></author><author><firstname>Yanjie</firstname><surname>Wang</surname><order>8</order></author></authors><documents><document><filename>63092__27199__3fb5711659844bc096a818a6daaccb9e.pdf</filename><originalFilename>63092.pdf</originalFilename><uploaded>2023-04-25T15:54:31.9135560</uploaded><type>Output</type><contentLength>4888270</contentLength><contentType>application/pdf</contentType><version>Version of Record</version><cronfaStatus>true</cronfaStatus><documentNotes>© 2023 by the authors. 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/).</documentNotes><copyrightCorrect>true</copyrightCorrect><language>eng</language><licence>https://creativecommons.org/licenses/by/4.0</licence></document></documents><OutputDurs/></rfc1807>
spelling	v2 63092 2023-04-05 Strain and Pressure Sensors Based on MWCNT/PDMS for Human Motion/Perception Detection ed2c658b77679a28e4c1dcf95af06bd6 0000-0003-4630-7692 Lijie Li Lijie Li true false 2023-04-05 EEEG Flexible wearable devices have attracted wide attention in capacious fields because of their real-time and continuous monitoring of human information. The development of flexible sensors and corresponding integration with wearable devices is of great significance to build smart wearable devices. In this work, multi-walled carbon nanotube/polydimethylsiloxane-based (MWCNT/PDMS) resistive strain sensors and pressure sensors were developed to integrate a smart glove for human motion/perception detection. Firstly, MWCNT/PDMS conductive layers with excellent electrical and mechanical properties (resistivity of 2.897 KΩ · cm, elongation at break of 145%) were fabricated via a facile scraping-coating method. Then, a resistive strain sensor with a stable homogeneous structure was developed due to the similar physicochemical properties of the PDMS encapsulation layer and MWCNT/PDMS sensing layer. The resistance changes of the prepared strain sensor exhibited a great linear relationship with the strain. Moreover, it could output obvious repeatable dynamic response signals. It still had good cyclic stability and durability after 180° bending/restoring cycles and 40% stretching/releasing cycles. Secondly, MWCNT/PDMS layers with bioinspired spinous microstructures were formed by a simple sandpaper retransfer process and then assembled face-to-face into a resistive pressure sensor. The pressure sensor presented a linear relationship of relative resistance change and pressure in the range of 0–31.83 KPa with a sensitivity of 0.026 KPa−1, and a sensitivity of 2.769 × 10−4 KPa−1 over 32 KPa. Furthermore, it responded quickly and kept good cycle stability at 25.78 KPa dynamic loop over 2000 s. Finally, as parts of a wearable device, resistive strain sensors and a pressure sensor were then integrated into different areas of the glove. The cost-effective, multi-functional smart glove can recognize finger bending, gestures, and external mechanical stimuli, which holds great potential in the fields of medical healthcare, human-computer cooperation, and so on. Journal Article Polymers 15 6 1386 MDPI AG 2073-4360 MWCNT/PDMS; pressure sensor; smart glove; strain sensor; wearable devices. 10 3 2023 2023-03-10 10.3390/polym15061386 http://dx.doi.org/10.3390/polym15061386 COLLEGE NANME Electronic and Electrical Engineering COLLEGE CODE EEEG Swansea University Another institution paid the OA fee The National Natural Science Foundation of China (51975184), the Changzhou Sci &Tech Program (CE20215051), and the National Key Research and Development Program of China (2020YFB1312900). The authors gratefully acknowledge the supports. 2023-05-18T14:58:04.8603481 2023-04-05T21:57:58.0007545 Faculty of Science and Engineering School of Aerospace, Civil, Electrical, General and Mechanical Engineering - Electronic and Electrical Engineering Xin Zhao 0000-0002-9698-8767 1 Dong Mei 0000-0001-5943-9470 2 Gangqiang Tang 0000-0002-1994-8438 3 Chun Zhao 4 Jianfeng Wang 5 Minzhou Luo 6 Lijie Li 0000-0003-4630-7692 7 Yanjie Wang 8 63092__27199__3fb5711659844bc096a818a6daaccb9e.pdf 63092.pdf 2023-04-25T15:54:31.9135560 Output 4888270 application/pdf Version of Record true © 2023 by the authors. 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/). true eng https://creativecommons.org/licenses/by/4.0
title	Strain and Pressure Sensors Based on MWCNT/PDMS for Human Motion/Perception Detection
spellingShingle	Strain and Pressure Sensors Based on MWCNT/PDMS for Human Motion/Perception Detection Lijie Li
title_short	Strain and Pressure Sensors Based on MWCNT/PDMS for Human Motion/Perception Detection
title_full	Strain and Pressure Sensors Based on MWCNT/PDMS for Human Motion/Perception Detection
title_fullStr	Strain and Pressure Sensors Based on MWCNT/PDMS for Human Motion/Perception Detection
title_full_unstemmed	Strain and Pressure Sensors Based on MWCNT/PDMS for Human Motion/Perception Detection
title_sort	Strain and Pressure Sensors Based on MWCNT/PDMS for Human Motion/Perception Detection
author_id_str_mv	ed2c658b77679a28e4c1dcf95af06bd6
author_id_fullname_str_mv	ed2c658b77679a28e4c1dcf95af06bd6_***_Lijie Li
author	Lijie Li
author2	Xin Zhao Dong Mei Gangqiang Tang Chun Zhao Jianfeng Wang Minzhou Luo Lijie Li Yanjie Wang
format	Journal article
container_title	Polymers
container_volume	15
container_issue	6
container_start_page	1386
publishDate	2023
institution	Swansea University
issn	2073-4360
doi_str_mv	10.3390/polym15061386
publisher	MDPI AG
college_str	Faculty of Science and Engineering
hierarchytype
hierarchy_top_id	facultyofscienceandengineering
hierarchy_top_title	Faculty of Science and Engineering
hierarchy_parent_id	facultyofscienceandengineering
hierarchy_parent_title	Faculty of Science and Engineering
department_str	School of Aerospace, Civil, Electrical, General and Mechanical Engineering - Electronic and Electrical Engineering{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Aerospace, Civil, Electrical, General and Mechanical Engineering - Electronic and Electrical Engineering
url	http://dx.doi.org/10.3390/polym15061386
document_store_str	1
active_str	0
description	Flexible wearable devices have attracted wide attention in capacious fields because of their real-time and continuous monitoring of human information. The development of flexible sensors and corresponding integration with wearable devices is of great significance to build smart wearable devices. In this work, multi-walled carbon nanotube/polydimethylsiloxane-based (MWCNT/PDMS) resistive strain sensors and pressure sensors were developed to integrate a smart glove for human motion/perception detection. Firstly, MWCNT/PDMS conductive layers with excellent electrical and mechanical properties (resistivity of 2.897 KΩ · cm, elongation at break of 145%) were fabricated via a facile scraping-coating method. Then, a resistive strain sensor with a stable homogeneous structure was developed due to the similar physicochemical properties of the PDMS encapsulation layer and MWCNT/PDMS sensing layer. The resistance changes of the prepared strain sensor exhibited a great linear relationship with the strain. Moreover, it could output obvious repeatable dynamic response signals. It still had good cyclic stability and durability after 180° bending/restoring cycles and 40% stretching/releasing cycles. Secondly, MWCNT/PDMS layers with bioinspired spinous microstructures were formed by a simple sandpaper retransfer process and then assembled face-to-face into a resistive pressure sensor. The pressure sensor presented a linear relationship of relative resistance change and pressure in the range of 0–31.83 KPa with a sensitivity of 0.026 KPa−1, and a sensitivity of 2.769 × 10−4 KPa−1 over 32 KPa. Furthermore, it responded quickly and kept good cycle stability at 25.78 KPa dynamic loop over 2000 s. Finally, as parts of a wearable device, resistive strain sensors and a pressure sensor were then integrated into different areas of the glove. The cost-effective, multi-functional smart glove can recognize finger bending, gestures, and external mechanical stimuli, which holds great potential in the fields of medical healthcare, human-computer cooperation, and so on.
published_date	2023-03-10T14:58:03Z
_version_	1766240586080190464
score	11.013148

Strain and Pressure Sensors Based on MWCNT/PDMS for Human Motion/Perception Detection

Similar Items