Journal
ACS APPLIED MATERIALS & INTERFACES
Volume 12, Issue 17, Pages 19965-19973Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acsami.0c03670
Keywords
sensing textile; pressure sensor; triboelectric effect; motion monitoring; washability
Funding
- Fundamental Research Funds for the Central Universities [2232020G-04]
- National Key R&D Program of China [2018YFC2000900]
- National Natural Science Foundation of China [51703022, 51873030]
- Natural Science Foundation of Shanghai [18ZR1402100]
- Shanghai Committee of Science and Technology [19QA1400100]
- Shanghai Municipal Science and Technology Committee of Shanghai Outstanding Academic Leaders Plan [18XD1400200]
- DHU Distinguished Young Professor Program [LZB2017002]
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At present, pressure sensor textiles are of great significance in the area of wearable electronics, especially for making smart or intelligent textiles. However, the design of these textile-based devices with sensitive ability, simple fabrication, and low cost is still challenging. In this study, we developed a triboelectric sensing textile constructed with core-shell yarns. Nylon filament and polytetrafluoroethylene filament were selected as the positive and negative layers, respectively, in the woven structure while the built-in helical stainless steel yarn was serving as the inner electrode layer. The sensitivity of the sensing textile can reach up to 1.33 V.kPa(-1) and 0.32 V.kPa(-1) in the pressure range of 1.95-3.13 kPa and 3.20-4.61 kPa, respectively. This sensing textile presented good mechanical stability and sensing capability even after 4200 cycles of continuous operation or after 4 h continuous water washing. Benefiting from the favorable merits of being highly flexible, breathable, lightweight, and even dyeable, the fabricated device was capable of being placed on any desired body parts for quantifying the dynamic human motions. It can be effectively used to measure and monitor various human movements associated with different joints, such as the hand, elbow, knee, and underarm. Moreover, the sensing textile was able to capture real-time pulse signals and reflect the current health status for human beings. This study affords an innovative and promising track for multifunctional pressure sensor textiles with wide applications in smart textiles and personalized healthcare.
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