A semi-interpenetrating network ionic hydrogel for strain sensing with high sensitivity, large strain range, and stable cycle performance - Details

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Abstract：

Transparent　conductive　hydrogels　with　intrinsic　flexibility,　high　sensitivity　and　outstanding　repeatability　and　nearly　real-time　response　are　highly　demanded　for　wearable　devices/sensors.　Here　we　report　a　novel　ionic　conductor　hydrogel　consisting　of　interpenetrating　sodium　carboxymethylcellulose　(CMC)　microsheets　and　polyacrylamide　(PAAm)　network.　Intrinsic　interactions　between　the　CMC　and　PAAm　endow　the　hydrogel　with　outstanding　physical,　mechanical　robustness.　The　ionic　hydrogel　shows　a　very　high　transparency　(98.2%),　high　adhesion　efficiency　(64%　in　strength),　outstanding　repeatability　(500　cycles　at　the　strain　of　300%),　sensitivity　(Gauge　factor　=　3.15),　and　nearly　real-time　response　(360　ms)　to　a　small　amount　of　stress.　Additionally,　two　pieces　of　the　semi-interpenetrating　hydrogel　can　be　bonded　together　with　CMC　membrane　instantly　without　any　external　stimulation.　Strain　sensor　based　on　the　semi-interpenetrating　network　hydrogel　has　been　demonstrated　reliable　in　detecting　a　small　strain　caused　by　a　subtle　vibration　up　to　a　very　large　deformation　by　stretching.　The　hydrogel-based　strain　sensor　may　be　applied　in　human　motion　detection,　smart　cushion　and　soft　robotics.　©　2019　Elsevier　B.V.

Keyword：

Capillary adhesion; Human motion detection; Polyacrylamide; Semi-interpenetrating network hydrogel; Sodium carboxymethylcellulose

Community：

[ 1 ] [Zhu, T.]National Engineering Laboratory for Modern Silk, College of Textile and Clothing Engineering, Soochow University, Suzhou, 215123, China
[ 2 ] [Cheng, Y.]National Engineering Laboratory for Modern Silk, College of Textile and Clothing Engineering, Soochow University, Suzhou, 215123, China
[ 3 ] [Cao, C.]Department of Biomedical Science, City University of Hong Kong, Hong Kong, 999077, Hong Kong
[ 4 ] [Mao, J.]College of Chemical Engineering, Fuzhou University, Fuzhou, 350116, China
[ 5 ] [Li, L.]Tianjin Key Laboratory of Molecular Optoelectronic Sciences, The Institute of Molecular Aggregation Science, Tianjin University, Tianjin, 300072, China
[ 6 ] [Huang, J.]College of Chemical Engineering, Fuzhou University, Fuzhou, 350116, China
[ 7 ] [Gao, S.]National Engineering Laboratory for Modern Silk, College of Textile and Clothing Engineering, Soochow University, Suzhou, 215123, China
[ 8 ] [Dong, X.]National Engineering Laboratory for Modern Silk, College of Textile and Clothing Engineering, Soochow University, Suzhou, 215123, China
[ 9 ] [Chen, Z.]School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore, 639798, Singapore
[ 10 ] [Lai, Y.]National Engineering Laboratory for Modern Silk, College of Textile and Clothing Engineering, Soochow University, Suzhou, 215123, China
[ 11 ] [Lai, Y.]College of Chemical Engineering, Fuzhou University, Fuzhou, 350116, China

Reprint 's Address：

[Huang, J.]National Engineering Laboratory for Modern Silk, College of Textile and Clothing Engineering, Soochow UniversityChina

Email：

jyhuang@fzu.edu.cn

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Source ：

Chemical Engineering Journal

ISSN： 1385-8947

Year： 2020

Volume： 385

1 3 . 2 7 3

JCR@2020

1 3 . 4 0 0

JCR@2023

ESI HC Threshold：132

JCR Journal Grade：1

CAS Journal Grade：1

Cited Count：

WoS CC Cited Count：

SCOPUS Cited Count： 157

ESI Highly Cited Papers on the List： 0 Unfold All

WanFang Cited Count：

Chinese Cited Count：

30 Days PV： 0

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