Breathable and Flexible Polymer Membranes with Mechanoresponsive Electric Resistance
Breathable and Flexible Polymer Membranes with Mechanoresponsive Electric Resistance
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DOI：
10.1002/adfm.201907555
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发表时间：
2020-01-09
影响因子：
19
通讯作者：
Greiner, Andreas
中科院分区：
文献类型：
--
作者：
Gao, Qiang;Kopera, Bernd A. F.;Greiner, Andreas
柔性低阻膜在软电子学中扮演着重要的角色，如机器人传感器、身体运动监测、从身体运动中收集动能的纳米发电机和柔性电池。尽管付出了很大的努力，但仍在寻找低阻力、机械稳定的大尺寸薄膜，这种薄膜可以容忍非常高的变形能力，而不会牺牲阻力，产生低焦耳加热，并允许气体通过，以满足人类的舒适性。在这里，其中一个解决方案是将银纳米线(AgNW)网络夹在两个高度多孔的电纺热塑性聚氨酯(TPU)膜之间。膜的机械强度很高(包括弯曲和拉伸)，界面牢固，破裂前的应变较大(超过700%)。方块电阻低至
Flexible low-resistance membranes play an important role in soft electronics as sensors for robotics, body movement monitoring, nanogenerators to collect kinetic energy from body movements, and flexible batteries. Despite great efforts, low-resistance, mechanically stable large-dimensional membranes that tolerate very high deformability without sacrificing resistance produce low joule heating and allow passage of gases for human comfort are still being sought. Here, one of the solutions is provided by sandwiching a network of silver nanowires (AgNWs) between two highly porous electrospun thermoplastic polyurethane (TPU) membranes. The membranes are mechanically robust (both for bending and stretching) with a strong interface and large strain before breakage (more than 700%). The sheet resistance is as low as