Ming Hao, Xiaodong Hu, Zhijun Chen, Bo Yang, Yanan Liu, Qiang Wang, Xinyu Gao, Yanbo Liu, Xiaoxiao Wang, Yong Liu
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引用次数: 0
Abstract
Polyimide-based triboelectric nanogenerators (TENGs) capable of energy harvesting in harsh environments (high temperature and high humidity) have been extensively studied. However, most polyimide-based TENGs have the disadvantages of poor air permeability and poor softness. In this study, a core–shell yarn with good air permeability, softness, and high electric output performance was successfully prepared by conjugate electrospinning. FEP-doped FPI and nickel-plated aramid yarn were employed as the shell and core materials, respectively. Due to the unique hierarchical porous structure and fluorinated functional group modification, the yarns exhibit excellent output performance (maximum open-circuit voltage is 22.7 V per length of 10 cm) compared to traditional polyimide yarns. The textile woven with this yarn has good high-temperature resistance, antifouling, waterproof, and self-cleaning performance, and still maintains an output performance of about 80% under 99% relative humidity. Moreover, this textile-based TENG has no significant attenuation after 10,000 cycles, showing good stability and durability. Finally, the TENG based on the intelligent fire suit is designed, which can be used for the movement and position monitoring of firefighters in high-temperature and high-humidity environments. This fluorinated polyimide yarn prepared in this study provides a promising solution for the development of self-powered sensors capable of monitoring the movement status and position of firefighters in high-temperature and high-humidity environments.
聚酰亚胺基摩擦电纳米发电机(TENGs)能够在恶劣环境下(高温高湿)收集能量,已经得到了广泛的研究。然而,大多数聚酰亚胺基TENGs具有透气性差,柔软性差的缺点。本研究成功制备了一种具有良好透气性、柔软性和高电输出性能的包芯-壳纱线。包壳材料采用掺fep的FPI,包芯材料采用镀镍芳纶纱。由于独特的分层多孔结构和氟化官能团改性,与传统的聚酰亚胺纱线相比,该纱线具有优异的输出性能(最高开路电压为22.7 V / 10 cm)。用该纱织成的纺织品具有良好的耐高温、防污、防水、自洁性能,在99%的相对湿度下仍能保持80%左右的输出性能。此外,这种基于纺织品的TENG在10,000次循环后没有明显的衰减,具有良好的稳定性和耐久性。最后,设计了基于智能消防服的TENG,用于高温高湿环境下消防员的运动和位置监控。本研究中制备的氟化聚酰亚胺纱线为开发能够在高温高湿环境中监测消防员运动状态和位置的自供电传感器提供了一个有希望的解决方案。
期刊介绍:
ACS Applied Materials & Interfaces is a leading interdisciplinary journal that brings together chemists, engineers, physicists, and biologists to explore the development and utilization of newly-discovered materials and interfacial processes for specific applications. Our journal has experienced remarkable growth since its establishment in 2009, both in terms of the number of articles published and the impact of the research showcased. We are proud to foster a truly global community, with the majority of published articles originating from outside the United States, reflecting the rapid growth of applied research worldwide.