中原工学院学报

选择机织蜂巢组织、机织方格组织和“他他米”刺绣工艺3种不同织物，探究了浸渍和丝网印刷2种水凝胶嵌入工艺对纺织电极电阻的影响。测试了展平状态和不同弯曲程度下嵌入水凝胶前后纺织电极电阻的变化，并结合纺织电极微观结构分析了电极电阻变化机理。研究结果表明：浸渍工艺形成双层水凝胶，导致电极电阻比未嵌入水凝胶时增加4～49倍；丝网印刷工艺形成单层水凝胶，导致电极电阻与未嵌入水凝胶时相比显著降低，其中蜂巢组织电极电阻降幅最大，达64.8%,刺绣工艺纺织电极电阻沿经纬纱方向的差异消除，且所有纺织电极在不同弯曲及回复状态下的电阻波动显著降低，导电稳定性提升；通过丝网印刷工艺嵌入水凝胶可有效优化纺织电极的电学性能。研究为可穿戴设备中柔性电极的设计提供理论支持。

To investigate the effects of impregnation and silk-screen printing on hydrogel technology on the electrical conductivity of textile-based electrodes, three different structures including woven honeycomb, woven grid and “Tatami” embroidery techniques were selected to build fabrics in this paper. The variation of resistance in the flattening state and bending degree were tested experimentally, and the mechanism was analyzed in combination with the microstructure. The results show that the double layer of hydrogel is formed by the impregnation process, and the resistance value is increased by 4～49 times. The single layer of hydrogel was formed by the screen-printing process, and the resistance was significantly reduced, among which the honeycomb tissue electrode decreased by up to 64.8%. After the hydrogel treatment, the resistance difference along the warp and weft direction of the embroidery electrode was eliminated, and the resistance fluctuation of all electrodes under different bending and recovery states were significantly reduced, and the conductive stability was improved. The screen-printing process combined with hydrogel can effectively optimize the electrical properties of textile-based electrodes, and provide theoretical support for the design of textile-based electrodes in wearable devices.