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Copper-Coordinated Cellulose Fibers for Electric Devices with Motion Sensitivity and Flame Retardance
ACS Applied Materials & Interfaces ( IF 8.3 ) Pub Date : 2023-03-31 , DOI: 10.1021/acsami.2c21821 Yide Liu 1 , Kai Li 1 , Jiuyong Yao 1 , Xiankai Li 1 , Yanzhi Xia 1
ACS Applied Materials & Interfaces ( IF 8.3 ) Pub Date : 2023-03-31 , DOI: 10.1021/acsami.2c21821 Yide Liu 1 , Kai Li 1 , Jiuyong Yao 1 , Xiankai Li 1 , Yanzhi Xia 1
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Nanocomposite conductive fibers are of great significance in applications of wearable devices, smart textiles, and flexible electronics. Integration of conductive nanomaterials into flexible bio-based fibers with multifunctionality remains challenging due to interface failure, poor flexibility, and inflammability. Although having broader applications in textiles, regenerated cellulose fibers (RCFs) cannot meet the requirements of wearable electronics owing to their intrinsic insulation. In this study, we constructed conductive RCFs fabricated by coordinating copper ions with cellulose and reducing them into stable Cu nanoparticles coated on their surface. The Cu sheath offered excellent electrical conductivity (4.6 × 105 S m–1), electromagnetic interference shielding, and enhanced flame retardance. Inspired by plant tendrils, the conductive RCF was wrapped around an elastic rod to develop wearable sensors for human health and motion monitoring. The resultant fibers not only form stable conductive nanocomposites on the fiber surface by chemical bonds but also exhibit a huge potential for wearable devices, smart sensors, and flame-retardant circuits.
中文翻译：
具有运动敏感性和阻燃性的用于电子设备的铜配位纤维素纤维
纳米复合导电纤维在可穿戴设备、智能纺织品和柔性电子产品的应用中具有重要意义。由于界面失效、柔韧性差和易燃性，将导电纳米材料集成到具有多功能性的柔性生物基纤维中仍然具有挑战性。尽管再生纤维素纤维（RCF）在纺织品中具有更广泛的应用，但由于其固有的绝缘性，无法满足可穿戴电子产品的要求。在这项研究中，我们构建了导电 RCF，其通过将铜离子与纤维素配位并将其还原成稳定的 Cu 纳米颗粒包覆在其表面而制成。Cu 护套具有出色的导电性（4.6 × 10 5 S m –1)、电磁干扰屏蔽、阻燃性增强。受植物卷须的启发，将导电 RCF 缠绕在弹性杆上，以开发用于人体健康和运动监测的可穿戴传感器。所得纤维不仅通过化学键在纤维表面形成稳定的导电纳米复合材料，而且在可穿戴设备、智能传感器和阻燃电路方面具有巨大潜力。
更新日期：2023-03-31
中文翻译：
具有运动敏感性和阻燃性的用于电子设备的铜配位纤维素纤维
纳米复合导电纤维在可穿戴设备、智能纺织品和柔性电子产品的应用中具有重要意义。由于界面失效、柔韧性差和易燃性，将导电纳米材料集成到具有多功能性的柔性生物基纤维中仍然具有挑战性。尽管再生纤维素纤维（RCF）在纺织品中具有更广泛的应用，但由于其固有的绝缘性，无法满足可穿戴电子产品的要求。在这项研究中，我们构建了导电 RCF，其通过将铜离子与纤维素配位并将其还原成稳定的 Cu 纳米颗粒包覆在其表面而制成。Cu 护套具有出色的导电性（4.6 × 10 5 S m –1)、电磁干扰屏蔽、阻燃性增强。受植物卷须的启发，将导电 RCF 缠绕在弹性杆上，以开发用于人体健康和运动监测的可穿戴传感器。所得纤维不仅通过化学键在纤维表面形成稳定的导电纳米复合材料，而且在可穿戴设备、智能传感器和阻燃电路方面具有巨大潜力。
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