气候变化领域集成服务门户(CCPortal): Flexible conductive Ag nanowire/cellulose nanofibril hybrid nanopaper for strain and temperature sensing applications

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DOI	10.1016/j.scib.2020.02.020
	Flexible conductive Ag nanowire/cellulose nanofibril hybrid nanopaper for strain and temperature sensing applications
	Yin R.; Yang S.; Li Q.; Zhang S.; Liu H.; Han J.; Liu C.; Shen C.
发表日期	2020
ISSN	20959273
起始页码	899
结束页码	908
卷号	65 期号:11
英文摘要	With the rapid development of smart wearable devices, flexible and biodegradable sensors are in urgent needs. In this study, “green” electrically conductive Ag nanowire (AgNW)/cellulose nanofiber (CNF) hybrid nanopaper was fabricated to prepare flexible sensors using the facial solution blending and vacuum filtration technique. The amphiphilic property of cellulose is beneficial for the homogeneous dispersion of AgNW to construct effective electrically conductive networks. Two different types of strain sensors were designed to study their applications in strain sensing. One was the tensile strain sensor where the hybrid nanopaper was sandwiched between two thermoplastic polyurethane (TPU) films through hot compression, and special micro-crack structure was constructed through the pre-strain process to enhance the sensitivity. Interestingly, typical pre-strain dependent strain sensing behavior was observed due to different crack densities constructed under different pre-strains. As a result, it exhibited an ultralow detection limit as low as 0.2%, good reproducibility under different strains and excellent stability and durability during 500 cycles (1% strain, 0.5 mm/min). The other was the bending strain sensor where the hybrid nanopaper was adhered onto TPU film, showing stable and recoverable linearly sensing behavior towards two different bending modes (tension and compression). Importantly, the bending sensor displayed great potential for human motion and physiological signal detection. Furthermore, the hybrid nanopaper also exhibited stable and reproducible negative temperature sensing behavior when it was served as a temperature sensor. This study provides a guideline for fabricating flexible and biodegradable sensors. © 2020 Science China Press
关键词	Ag nanowire Cellulose nanofibril Nanopaper Strain Temperature sensor
英文关键词	Blending; Cellulose; Motion sensors; Nanofibers; Nanowires; Silver; Strain; Temperature sensors; Wearable sensors; Ag nanowires; Electrically conductive; Homogeneous dispersions; Nanofibril; Nanopaper; Strain and temperature sensing; Tension and compression; Thermoplastic polyurethanes; Tensile strain; Behavior; Bending; Cellulose; Detection; Mixing; Sensors; Silver; Temperature
语种	英语
来源期刊	Science Bulletin
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/207275
作者单位	Key Laboratory of Materials Processing and Mold (Zhengzhou University), Ministry of Education, National Engineering Research Center for Advanced Polymer Processing Technology, Zhengzhou University, Zhengzhou, 450002, China; China Astronaut Research and Training Center, Beijing, 100094, China; Technology Development Center for Polymer Processing Engineering, Guangdong Colleges and Universities, Guangdong Industry Technical College, Guangzhou, 510641, China
推荐引用方式 GB/T 7714	Yin R.,Yang S.,Li Q.,et al. Flexible conductive Ag nanowire/cellulose nanofibril hybrid nanopaper for strain and temperature sensing applications[J],2020,65(11).
APA	Yin R..,Yang S..,Li Q..,Zhang S..,Liu H..,...&Shen C..(2020).Flexible conductive Ag nanowire/cellulose nanofibril hybrid nanopaper for strain and temperature sensing applications.Science Bulletin,65(11).
MLA	Yin R.,et al."Flexible conductive Ag nanowire/cellulose nanofibril hybrid nanopaper for strain and temperature sensing applications".Science Bulletin 65.11(2020).