Wearable and Robust Polyimide Hydrogel Fiber Textiles for Strain Sensors

• DOI: 10.1021/acsami.1c10055
• Publication Date: 2021-09-01T21:52:15Z
• Authors: Mengmeng Li; Xian Chen; Xiuting Li; Jie Dong; Xin Zhao; Qinghua Zhang
• Keywords: Textile

Conductive ionic hydrogel fibers and textiles with excellent mechanical properties chemical stability are requested for flexible wearable electronic devices, strain sensors, even artificial skin. However, most of the reported not suitable in complex environments, especially alkaline solutions organic solvents due to their poor stability. Herein, we report polyimide derived from an organosoluble salt that can be continuously rapidly prepared via a facile wet spinning method. Thanks ion-rich property robust skeletal structure, obtained showed conductivity ∼21 mS/cm outstanding tensile strength 2.5 MPa breaking elongation 215%. Furthermore, as-prepared could easily woven form integral textiles, endowing them good properties. Accordingly, sensors assembled by show linear response high sensitivity cycling stability, which have great potential applications under diverse environments.