Journal Article

Flexible Tisub.3Csub.2Tsub.x-Polyurethane Electrodes for Versatile Wearable Applications

Han, Fei, Guo, Qiaohang, Yi, Nuozhou, Yu, Wei, Chen, Kepei, Wang, Zhen, Zhou, Peidi, Yang, Kaihuai, Peng, Man, Weng, Mingcen

2024

Overview

With the development of science and technology, wearable electronics are increasingly widely used in medical, environmental monitoring, and other fields. Thus, the demand for flexible electrodes is increasing. The two-dimensional material Ti[sub.3]C[sub.2]T[sub.x] has attracted much attention in the manufacture of flexible electrodes due to its excellent mechanical and electrical properties. However, the brittleness of pure Ti[sub.3]C[sub.2]T[sub.x] films has become a major obstacle for their use as flexible electrodes in wearable devices. Therefore, solving the brittleness problem of flexible electrodes based on Ti[sub.3]C[sub.2]T[sub.x] while maintaining the excellent performance of Ti[sub.3]C[sub.2]T[sub.x] has become an urgent problem. To solve this problem, Ti[sub.3]C[sub.2]T[sub.x] was compounded with waterborne polyurethane (WPU), and a Ti[sub.3]C[sub.2]T[sub.x]-WPU composite film with a hierarchical structure was constructed by evaporation-assisted self-assembly. The Ti[sub.3]C[sub.2]T[sub.x]-WPU composite film not only retains the excellent electrical conductivity of Ti[sub.3]C[sub.2]T[sub.x] (100 S m[sup.−1]) but also has flexibility (20 MJ m[sup.−3]). Furthermore, the Ti[sub.3]C[sub.2]T[sub.x]-WPU composite film is applied to functional devices such as contact pressure sensors and non-contact proximity sensors. Finally, the Ti[sub.3]C[sub.2]T[sub.x]-WPU composite film wearable device demonstrates its practical application potential in the field of wearable devices.

• Publisher: MDPI AG
• Subject: Polyurethanes