Journal
COMPOSITES SCIENCE AND TECHNOLOGY
Volume 159, Issue -, Pages 42-49Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.compscitech.2018.02.034
Keywords
Smart materials; Flexible composites; Nano composites; Mechanical properties; Electrical properties
Categories
Funding
- National Natural Science Foundation of China [61471155, 61673369, 61401141]
- Key Research and Development Project of Zhejiang Province [2018C01041]
- Anhui Provincial Natural Science Foundation [1508085QF115]
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A fully flexible strain sensor from core-spun elastic threads with integrated electrode and sensing cell based on conductive nanocomposite is successfully prepared by a simple coating-drying process. It not only avoids mechanical failure at the junction between the sensing cell and electrode during the stretching process but also easily connect with external equipment or circuit. The conductive nano composite used for electrode and sensing cell is manufactured by carbon black/sliver paste/poly (sodium-p-styrenesulfonate) and single-walled carbon nanotubesicarbon black, respectively. The integrated strain sensor shows a typical resistive behavior and the gauge factor calculated at 0-50% strain is 2.18, which is close to that of the traditional metallic strain sensor. The integration sensor exhibits fast response (-125 ms), excellent stability and durability. The integrated strain sensor could be fabricated into various ideal shapes and located in different places. This new strain sensor is applicable to many situations such as monitoring the liquid level in the container, detecting the density of the solution, measuring acceleration and monitoring human movement. (C) 2018 Elsevier Ltd. All rights reserved.
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