Electrospun sponges with electrical conductivity are promising materials for electrodes with applications in pressure sensors, flexible wearable sensors, and supercapacitors. However, electrospun sponges display poor electric conductivity, which can be increased by the addition of silver nanowire (AgNW). The resulting electric conductivity may depend strongly on the distribution of the AgNW in and on the sponges. A straightforward assembly method for an elastic conductive sponge, composed of 3D structures and metal nanowires, using a synergistic strategy which involves modified impregnation and deposition processes assisted by polyethyleneimine (PEI) impregnation, is presented. The resulting changes in the material properties are also explored, and it is under specific conditions, that percolation, leading to significantly enhanced electrical conductivity in the sponges, is achieved.

中文翻译：

---

静电纺陶瓷海绵上银纳米线的聚乙烯亚胺控制浸渍

具有导电性的静电纺丝海绵是一种很有前途的电极材料，可用于压力传感器、柔性可穿戴传感器和超级电容器。然而，静电纺丝海绵的导电性较差，可以通过添加银纳米线（AgNW）来提高导电性。由此产生的电导率可能很大程度上取决于海绵内和海绵上的银纳米线的分布。提出了一种由 3D 结构和金属纳米线组成的弹性导电海绵的简单组装方法，该方法采用协同策略，包括在聚乙烯亚胺 (PEI) 浸渍的辅助下改进浸渍和沉积过程。还探讨了由此产生的材料性能变化，并且在特定条件下实现了渗透，从而显着增强了海绵的导电性。