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Open AccessArticle

Environmentally Friendly Flexible Strain Sensor from Waste Cotton Fabrics and Natural Rubber Latex

1
National Engineering Laboratory for Advanced Textile Processing and Clean Production, Wuhan Textile University, Wuhan 430073, China
2
Zhuhai College of Jilin University, School of Chemical Engineering and New Energy Materials, Zhuhai 519041, China
3
Deakin University, Institute for Frontier Materials, Geelong, VIC 3216, Australia
*
Authors to whom correspondence should be addressed.
Polymers 2019, 11(3), 404; https://doi.org/10.3390/polym11030404
Received: 23 January 2019 / Revised: 25 February 2019 / Accepted: 28 February 2019 / Published: 1 March 2019
(This article belongs to the Special Issue Innovative Functional Textiles)
A green approach was successfully developed to fabricate flexible sensors by utilizing carbonized waste cotton fabrics in combination with natural rubber latex. Waste cotton fabrics were firstly carbonized by heat treatment in the nitrogen atmosphere before they were combined with natural rubber latex using three methods, i.e., vacuum bagging, negative pressure adsorption and drop coating. After impregnation with natural rubber, the carbonized cotton maintained the fabric structure and showed good conductivity. More importantly, the electric resistance of the textile composites changed with the tensile strain. The cyclic stretching-releasing tests indicated that the prepared wearable flexible strain sensors were sensitive to strain and stable under cyclic loading. The flexible strain sensor also demonstrated the capability of monitoring human finger and arm motion. View Full-Text
Keywords: natural rubber latex; cotton; recycling; carbonization; conductive fabric; strain monitoring natural rubber latex; cotton; recycling; carbonization; conductive fabric; strain monitoring
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MDPI and ACS Style

Chen, X.; An, J.; Cai, G.; Zhang, J.; Chen, W.; Dong, X.; Zhu, L.; Tang, B.; Wang, J.; Wang, X. Environmentally Friendly Flexible Strain Sensor from Waste Cotton Fabrics and Natural Rubber Latex. Polymers 2019, 11, 404.

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