Smart Materials and ‡Materials Characterization Facility, Istituto Italiano di Tecnologia , Via Morego 30, 16163 Genova, Italy.
ACS Appl Mater Interfaces. 2017 Apr 26;9(16):13825-13830. doi: 10.1021/acsami.7b02326. Epub 2017 Apr 13.
Electrically conductive materials based on cotton have important implications for wearable electronics. We have developed flexible and conductive cotton fabrics (∼10 Ω/sq) by impregnation with graphene and thermoplastic polyurethane-based dispersions. Nanocomposite fabrics display remarkable resilience against weight-pressed severe folding as well as laundry cycles. Folding induced microcracks can be healed easily by hot-pressing, restoring initial electrical conductivity. Impregnated cotton fabric conductors demonstrate better mechanical properties compared to pure cotton and thermoplastic polyurethane maintaining breathability. They also resist environmental aging such as solar irradiation and high humidity.
基于棉花的导电材料对可穿戴电子设备具有重要意义。我们通过浸渍石墨烯和基于热塑性聚氨酯的分散体开发了柔性和导电的棉织物（约 10 Ω/sq）。纳米复合织物显示出对重压严重折叠和洗衣循环的出色弹性。通过热压可以轻松修复折叠引起的微裂纹，恢复初始电导率。与纯棉和热塑性聚氨酯相比，浸渍棉织物导体保持透气性的同时，还具有更好的机械性能。它们还能抵抗环境老化，如太阳照射和高湿度。
