Bhuyan Priyanuj, Cho Dongkyun, Choe Minjae, Lee Sangmin, Park Sungjune
Department of Nano Convergence Engineering, Jeonbuk National University, Jeonju 54896, Korea.
Department of Polymer-Nano Science and Technology, Jeonbuk National University, Jeonju 54896, Korea.
Polymers (Basel). 2022 Feb 12;14(4):710. doi: 10.3390/polym14040710.
In this work, we introduce liquid metal patterned stretchable and soft capacitive sensor with enhanced dielectric properties enabled by graphite nanofiber (GNF) fillers dispersed in polydimethylsiloxane (PDMS) substrate. We oxidized gallium-based liquid metal that exhibited excellent wetting behavior on the surface of the composites to enable patterning of the electrodes by a facile stencil printing. The fluidic behavior of the liquid metal electrode and modulated dielectric properties of the composite ( = 6.41 ± 0.092@6 wt % at 1 kHz) was utilized to fabricate stretchable and soft capacitive sensor with ability to distinguish various hand motions.
在这项工作中，我们介绍了一种液态金属图案化的可拉伸柔性电容式传感器，其通过分散在聚二甲基硅氧烷（PDMS）基底中的石墨纳米纤维（GNF）填料实现了增强的介电性能。我们氧化了在复合材料表面表现出优异润湿性的镓基液态金属，以便通过简便的模板印刷对电极进行图案化。利用液态金属电极的流体行为和复合材料调制后的介电性能（在1 kHz下，6 wt%时为6.41±0.092），制造出了能够区分各种手部动作的可拉伸柔性电容式传感器。
