Flame‐retardant, flexible, and breathable smart humidity sensing fabrics based on hydrogels for respiratory monitoring and non‐contact sensing

Abstract Smart sensing fabrics are becoming increasingly attractive in the emerging wearable areas of medical and military so far. Here, for the first time, we present a smart humidity sensing fabric (SHSF) based on a moisture‐sensitive polyacrylamide hydrogel for respiratory monitoring and non‐cont...

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Main Authors: Jinglan Yang, Limin Rong, Wenxi Huang, Zixuan Wu, Qiongling Ding, He Zhang, Yuanqing Lin, Fan Li, Chunwei Li, Bo‐Ru Yang, Kai Tao, Jin Wu
Format: Article
Language:English
Published: Wiley 2023-08-01
Series:View
Subjects:
Online Access:https://doi.org/10.1002/VIW.20220060
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author Jinglan Yang
Limin Rong
Wenxi Huang
Zixuan Wu
Qiongling Ding
He Zhang
Yuanqing Lin
Fan Li
Chunwei Li
Bo‐Ru Yang
Kai Tao
Jin Wu
author_facet Jinglan Yang
Limin Rong
Wenxi Huang
Zixuan Wu
Qiongling Ding
He Zhang
Yuanqing Lin
Fan Li
Chunwei Li
Bo‐Ru Yang
Kai Tao
Jin Wu
author_sort Jinglan Yang
collection DOAJ
description Abstract Smart sensing fabrics are becoming increasingly attractive in the emerging wearable areas of medical and military so far. Here, for the first time, we present a smart humidity sensing fabric (SHSF) based on a moisture‐sensitive polyacrylamide hydrogel for respiratory monitoring and non‐contact sensing. Fabricated by in situ cross‐linking of the hydrogel precursors on the fibers of the fabric, the flexible SHSF shows excellent sensitivity, outstanding flame retardance, air permeability, water retention capacity, and stability after treatment with lithium bromide solution. Specifically, its conductance increases more than 311 times as humidity increased from 11% to 98%. Besides, the humidity sensor features good repeatability and the ability to work normally under folding due to its flexible nature. As a clothing material, hydrogel–fabric composite exhibits 4.3 times the burning time compared to cotton fabric, illustrating better flame retardance. The SHSF is used to monitor human breathing and non‐contact finger approaching in real time, demonstrating its flexibility in practical applications. This work provides strategies for preparing high‐performance, flame‐retardant SHSF for emerging wearable electronic devices.
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spelling doaj.art-b4fb9f54a3cb49128489759ca4fb14532023-08-21T14:42:37ZengWileyView2688-39882688-268X2023-08-0144n/an/a10.1002/VIW.20220060Flame‐retardant, flexible, and breathable smart humidity sensing fabrics based on hydrogels for respiratory monitoring and non‐contact sensingJinglan Yang0Limin Rong1Wenxi Huang2Zixuan Wu3Qiongling Ding4He Zhang5Yuanqing Lin6Fan Li7Chunwei Li8Bo‐Ru Yang9Kai Tao10Jin Wu11State Key Laboratory of Optoelectronic Materials and Technologies and Guangdong Province Key Laboratory of Display Material and Technology School of Electronics and Information Technology Sun Yat‐Sen University Guangzhou ChinaState Key Laboratory of Optoelectronic Materials and Technologies and Guangdong Province Key Laboratory of Display Material and Technology School of Electronics and Information Technology Sun Yat‐Sen University Guangzhou ChinaState Key Laboratory of Optoelectronic Materials and Technologies and Guangdong Province Key Laboratory of Display Material and Technology School of Electronics and Information Technology Sun Yat‐Sen University Guangzhou ChinaState Key Laboratory of Optoelectronic Materials and Technologies and Guangdong Province Key Laboratory of Display Material and Technology School of Electronics and Information Technology Sun Yat‐Sen University Guangzhou ChinaState Key Laboratory of Optoelectronic Materials and Technologies and Guangdong Province Key Laboratory of Display Material and Technology School of Electronics and Information Technology Sun Yat‐Sen University Guangzhou ChinaNational Engineering Research Center of Novel Equipment for Polymer Processing Key Laboratory of Polymer Processing Engineering (SCUT), Ministry of Education South China University of Technology Guangzhou ChinaDepartment of Otolaryngology The First Affiliated Hospital Sun Yat‐Sen University Guangzhou ChinaState Key Laboratory of Optoelectronic Materials and Technologies and Guangdong Province Key Laboratory of Display Material and Technology School of Electronics and Information Technology Sun Yat‐Sen University Guangzhou ChinaDepartment of Otolaryngology The First Affiliated Hospital Sun Yat‐Sen University Guangzhou ChinaState Key Laboratory of Optoelectronic Materials and Technologies and Guangdong Province Key Laboratory of Display Material and Technology School of Electronics and Information Technology Sun Yat‐Sen University Guangzhou ChinaMinistry of Education Key Laboratory of Micro and Nano Systems for Aerospace Northwestern Polytechnical University Xi'an ChinaState Key Laboratory of Optoelectronic Materials and Technologies and Guangdong Province Key Laboratory of Display Material and Technology School of Electronics and Information Technology Sun Yat‐Sen University Guangzhou ChinaAbstract Smart sensing fabrics are becoming increasingly attractive in the emerging wearable areas of medical and military so far. Here, for the first time, we present a smart humidity sensing fabric (SHSF) based on a moisture‐sensitive polyacrylamide hydrogel for respiratory monitoring and non‐contact sensing. Fabricated by in situ cross‐linking of the hydrogel precursors on the fibers of the fabric, the flexible SHSF shows excellent sensitivity, outstanding flame retardance, air permeability, water retention capacity, and stability after treatment with lithium bromide solution. Specifically, its conductance increases more than 311 times as humidity increased from 11% to 98%. Besides, the humidity sensor features good repeatability and the ability to work normally under folding due to its flexible nature. As a clothing material, hydrogel–fabric composite exhibits 4.3 times the burning time compared to cotton fabric, illustrating better flame retardance. The SHSF is used to monitor human breathing and non‐contact finger approaching in real time, demonstrating its flexibility in practical applications. This work provides strategies for preparing high‐performance, flame‐retardant SHSF for emerging wearable electronic devices.https://doi.org/10.1002/VIW.20220060breathableflame retardanceflexible electronicshumidity sensing fabricshydrogel sensor
spellingShingle Jinglan Yang
Limin Rong
Wenxi Huang
Zixuan Wu
Qiongling Ding
He Zhang
Yuanqing Lin
Fan Li
Chunwei Li
Bo‐Ru Yang
Kai Tao
Jin Wu
Flame‐retardant, flexible, and breathable smart humidity sensing fabrics based on hydrogels for respiratory monitoring and non‐contact sensing
View
breathable
flame retardance
flexible electronics
humidity sensing fabrics
hydrogel sensor
title Flame‐retardant, flexible, and breathable smart humidity sensing fabrics based on hydrogels for respiratory monitoring and non‐contact sensing
title_full Flame‐retardant, flexible, and breathable smart humidity sensing fabrics based on hydrogels for respiratory monitoring and non‐contact sensing
title_fullStr Flame‐retardant, flexible, and breathable smart humidity sensing fabrics based on hydrogels for respiratory monitoring and non‐contact sensing
title_full_unstemmed Flame‐retardant, flexible, and breathable smart humidity sensing fabrics based on hydrogels for respiratory monitoring and non‐contact sensing
title_short Flame‐retardant, flexible, and breathable smart humidity sensing fabrics based on hydrogels for respiratory monitoring and non‐contact sensing
title_sort flame retardant flexible and breathable smart humidity sensing fabrics based on hydrogels for respiratory monitoring and non contact sensing
topic breathable
flame retardance
flexible electronics
humidity sensing fabrics
hydrogel sensor
url https://doi.org/10.1002/VIW.20220060
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