Gas-permeable and highly sensitive, washable and wearable strain sensors based on graphene/carbon nanotubes hybrids e-textile. (October 2021)

• Record Type: Journal Article
• Authors: Yao, Dijie; Tang, Zhenhua; Zhang, Li; Li, Rulong; Zhang, Yuzhou; Zeng, Hongxin; Du, Donghe; Ouyang, Jianyong
• Is Part Of: Composites. Volume 149(2021)
• Publication Date: 2021-10
• Subjects: A. Carbon-carbon composites (CCCs) -- B. Electrical properties -- B. Wear -- E. Surface treatments; Composite materials -- Periodicals; Manufacturing processes -- Periodicals; Composite materials; Manufacturing processes; Periodicals; 620.11805
• DOI: 10.1016/j.compositesa.2021.106556
• Languages: English
• ISSNs: 1359-835X

Abstract

Highlights: The wearable strain sensor based on rGO/CNTs hybrids e-textiles with microscopic 3D network-structure are prepared via a novel and facile ultrasonic nano-soldering process. The wearable rGO/CNTs e-textiles sensors present high sensitivity, good repeatability, and durability at detecting stretching and compressing deformation, and healthcare monitoring. The rGO/CNTs e-textiles show gas permeability, super-hydrophobic performance, and washability. Abstract: Electronic textile (e-textile) has emerged as a new generation of wearable electronics with these promising applications in healthcare and human movement detection. Herein, we report the gas-permeable and wearable e-textile strain sensors based on reduced graphene oxide/carbon nanotubes (rGO/CNTs) hybrids with unique structures grown on the low cost and eco-friendly non-woven fabric (NWF) by using a novel and facile nano-soldering method via ultrasonication. The gas-permeable rGO/CNTs e-textile strain sensors are highly sensitive and wearable, and the gauge factors of the rGO/CNTs hybrids sensors are 34.69 and 1.21 kPa −1 at 1 % tensile strain and 8.85 kPa pressure, respectively. Moreover, the gas-permeable and wearable rGO/CNTs e-textiles sensors also present good repeatability, super-hydrophobic performance, washability and durability at detecting stretching and compressing deformation, and it can be used for healthcare by monitoring the motions and blood pulse of human body.