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Bioinspired Ultrasensitive Flexible Strain Sensors for Real‑Time Wireless Detection of liquid leakage

Nano-Micro Letters 2025年第3期17卷 310-327页

作者： Weilong Zhou Yu Du Yingying Chen Congyuan Zhang Xiaowei Ning Heng Xie Ting Wu Jinlian Hu Jinping Qu Key Laboratory of Material Chemistry for Energy Conversion and Storage Ministry of EducationHubei Key Laboratory of Material Chemistry and Service Failure and Hubei Engineering Research Center for Biomaterials and Medical Protective MaterialsSchool of Chemistry and Chemical EngineeringHuazhong University of Science and TechnologyWuhan 430074People’s Republic of China School of Materials Science and Engineering Wuhan Institute of TechnologyWuhan 430205People’s Republic of China Department of Biomedical Engineering City University of Hong KongHong KongSAR 999077People’s Republic of China

liquid leakage of pipeline networks not only results in considerableresource wastage but also leads to environmental pollution and ecological *** response to this global issue, a bioinspired superhydrophobic thermoplastic polyurethane/carbon nanotubes/graphene nanosheets flexible strain sensor (TCGS) hasbeen developed using a combination of micro-extrusion compression molding andsurface modification for real-time wireless detection of liquid leakage. The TCGSutilizes the synergistic effects of Archimedean spiral crack arrays and micropores,which are inspired by the remarkable sensory capabilities of scorpions. This designachieves a sensitivity of 218.13 at a strain of 2%, which is an increase of 4300%. Additionally, it demonstrates exceptional durability bywithstanding over 5000 usage cycles. The robust superhydrophobicity of the TCGS significantly enhances sensitivity and stability indetecting small-scale liquid leakage, enabling precise monitoring of liquid leakage across a wide range of sizes, velocities, and compositionswhile issuing prompt alerts. This provides critical early warnings for both industrial pipelines and potential liquid leakage scenariosin everyday life. The development and utilization of bioinspired ultrasensitive flexible strain sensors offer an innovative and effectivesolution for the early wireless detection of liquid leakage.

关键词： Thermoplastic polyurethane Bioinspired Cracks liquid leakage Flexible strain sensor

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Self-healing Ionic liquid-based Electronics and Beyond

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Chinese Journal of Polymer Science 2021年第10期39卷 1235-1245,I0005页

作者： Shenglong Liao Xiaodong Lian Yapei Wang Department of Chemistry Renmin University of ChinaBeijing 100872China

Owing to the advantages of non-volatility,outstanding fluidity and easy recyclability,ionic liquid-based electronics,such as thermometer,strain sensors and thermoelectric converters,have been growing as attractive alternatives to traditionally solid *** fluidic character endows the ionic liquid-based circuit with self-healing ability,satisfying the needs of longer lifetime and less waste generation for electronics,while at the same time brings the risk of *** the leakage without sacrifice of self-healing ability is one of the major challenges for constructing ionic liquid-based electronic *** this feature article,we summarize our recent progresses in developing two types of self-healing electrical devices based on ionic liquids with little risk of *** type involves the encapsulation of ionic liquids in self-healing polymers,and the other type uses ionic polymers or free-standing ionic liquids which are successfully formulated as intrinsically conductive,self-healing,and recyclable electronic devices without additional *** the end,a comprehensive outlook is prospected for the future development of ionic liquid-based self-healing electronics,which is expected to spur more innovative work in this field.

关键词： Self-healing electronics Self-healing materials Recyclable electronics Ionic liquid liquid leakage

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Study on a Gas Plunger Lift Model for Shale Gas Wells and Its Effective Application

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Fluid Dynamics & Materials Processing 2022年第4期18卷 933-955页

作者： Peng Liu Man Chen Zhiguo He Wei Luo Shiyu Miao Sichuan Changning Gas Development Company PetroChina Southwest Oil&Gas Field CompanyChengdu610051China Petroleum Engineering Institute of Yangtze University Wuhan430100China Key Laboratory of Drilling and Production Engineering for Oil and Gas Yangtze UniversityWuhan430100China

The problem of efficient gas lift for gas well annulus packers that rely on their own energy plungers is *** complex related gas-liquid problem is addressed in the frame of model where the gas inflow dynamics and liquid inflow dynamics of the considered shale gas wells are weakly *** this basis,and with the aiding support of indoor simulation experimental data,a new gas plunger lift design taking into account liquid leakage is ***,a dedicated software relying on this approach is developed and used to verify the reliability of the model by means of field examples.

关键词： Packers their own energy plungers shale gas wells weakly coupled liquid leakage

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