期刊
ACS APPLIED MATERIALS & INTERFACES
卷 13, 期 37, 页码 44234-44242出版社
AMER CHEMICAL SOC
DOI: 10.1021/acsami.1c10366
关键词
P(VDF-TrFE); conjugate electrospinning; fabric; sensing; smart fabric
资金
- Postdoctoral Science Foundation of China [2020M671998]
- National Natural Science Foundation of China [51703102]
- State Key Laboratory of Bio-Fibers and Eco-Textiles (Qingdao University) [ZKT35]
A piezoelectric sensing fabric was proposed based on core-spun Cu/P(VDF-TrFE) nanofibrous yarns, showing good flexibility, breathability, mechanical stability, and sensing capability. The fabric could generate a current of 38 nA and voltage of 2.7 V under 15 N pressure.
At present, wearable electronic sensors are widely investigated and applied for human life usage especially for the flexible piezoelectric sensor based on piezoelectric fibers. However, most of these fiber-based piezoelectric sensors are thin films, which might had poor air permeability, or do not adapt to complex body movements. In this study, a piezoelectric sensing fabric was proposed based on core-spun Cu/P(VDF-TrFE) nanofibrous yarns. These yarns were fabricated by P(VDF-TrFE) as a piezoelectric material and Cu wire as an inner electrode layer through a one-step conjugate electrospinning process. The Cu/P(VDF-TrFE) fabrics showed good flexibility, breathability, mechanical stability, and sensing capability after continuous running for 60 min or after washing. A 4 cm x 4 cm fabric could generate a current of 38 nA and voltage of 2.7 V under 15 N pressure. Once the fabric was fixed onto the clothes, human motion could be monitored by collecting its generated current, and the signal could be wirelessly transmitted onto a smartphone. Therefore, this study may provide a simple and promising approach to design a smart textile for human motion monitoring.
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