东华大学学报(英文版)

2020, v.37(02) 96-100

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Fabrication and Characterization of Polypyrrole/Polyurethane/Polyamide/Polyamide Yarn-Based Strain Sensor
Fabrication and Characterization of Polypyrrole/Polyurethane/Polyamide/Polyamide Yarn-Based Strain Sensor

李婷;李乔;

摘要(Abstract):

Yarn-based strain sensors serve as essential elements for wearable electronics in the applications of personal health monitoring, motion detection, and smart garments. In the paper, a yarn-based strain sensor was created by coating conductive polymer, polypyrrole(PPy), onto a double covered elastic yarn, i.e., polyurethane/polyamide/polyamide(PU/PA/PA) yarn. Surface morphology of the yarn-based strain sensors demonstrates that the PPy conductive particles are evenly distributed on the surface of the PA multi-filaments as well as immersed into the PU core. Cyclic tensile test is conducted to characterize the electro-mechanical performance of the yarn-based strain sensor. The mechanical hysteresis of the sensor is low, which mainly comes from the geometrical change of the PA filaments around the PU core. However, the electro-mechanical hysteresis of the sensor is large mainly due to the unrecoverable cracks of the PPy layers on the PU core.

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基金项目(Foundation): National Natural Science Foundation of China(No.51603039);; Fundamental Research Funds for the Central Universities,China(No.2232017D-12);; Key Laboratory of Textile Science and Technology(Donghua University),Ministry of Education,China(No.KLTST 201623);; Initial Research Funds for Young Teachers of Donghua University,China

作者(Author): 李婷;李乔;

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