Zhou Weilong, Du Yu, Chen Yingying, Zhang Congyuan, Ning Xiaowei, Xie Heng, Wu Ting, Hu Jinlian, Qu Jinping
Key Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, Hubei Key Laboratory of Material Chemistry and Service Failure and Hubei Engineering Research Center for Biomaterials and Medical Protective Materials, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan, 430074, People's Republic of China.
School of Materials Science and Engineering, Wuhan Institute of Technology, Wuhan, 430205, People's Republic of China.
Nanomicro Lett. 2024 Nov 22;17(1):68. doi: 10.1007/s40820-024-01575-2.
Liquid leakage of pipeline networks not only results in considerable resource wastage but also leads to environmental pollution and ecological imbalance. In response to this global issue, a bioinspired superhydrophobic thermoplastic polyurethane/carbon nanotubes/graphene nanosheets flexible strain sensor (TCGS) has been developed using a combination of micro-extrusion compression molding and surface modification for real-time wireless detection of liquid leakage. The TCGS utilizes the synergistic effects of Archimedean spiral crack arrays and micropores, which are inspired by the remarkable sensory capabilities of scorpions. This design achieves a sensitivity of 218.13 at a strain of 2%, which is an increase of 4300%. Additionally, it demonstrates exceptional durability by withstanding over 5000 usage cycles. The robust superhydrophobicity of the TCGS significantly enhances sensitivity and stability in detecting small-scale liquid leakage, enabling precise monitoring of liquid leakage across a wide range of sizes, velocities, and compositions while issuing prompt alerts. This provides critical early warnings for both industrial pipelines and potential liquid leakage scenarios in everyday life. The development and utilization of bioinspired ultrasensitive flexible strain sensors offer an innovative and effective solution for the early wireless detection of liquid leakage.
管网的液体泄漏不仅会导致大量资源浪费，还会造成环境污染和生态失衡。针对这一全球性问题，通过微挤出压缩成型和表面改性相结合的方法，开发了一种受生物启发的超疏水热塑性聚氨酯/碳纳米管/石墨烯纳米片柔性应变传感器（TCGS），用于实时无线检测液体泄漏。TCGS利用了阿基米德螺旋裂纹阵列和微孔的协同效应，这是受到蝎子卓越传感能力的启发。这种设计在2%应变下实现了218.13的灵敏度，提高了4300%。此外，它通过承受超过5000次使用循环展示了出色的耐久性。TCGS强大的超疏水性显著提高了检测小规模液体泄漏时的灵敏度和稳定性，能够在广泛的尺寸、速度和成分范围内精确监测液体泄漏，同时发出即时警报。这为工业管道和日常生活中的潜在液体泄漏情况提供了关键的早期预警。受生物启发的超灵敏柔性应变传感器的开发和应用为液体泄漏的早期无线检测提供了一种创新有效的解决方案。
