摘要
柔性压电传感器兼具低成本、柔韧性和多功能等优势,展现出巨大的市场前景。然而,对于压电传感器来说,机电转化能力依旧存在一定的挑战。因此,为了实现柔性压电式传感器更优异的输出性能,选择具有良好压电性能的压电材料尤为重要。文中通过静电纺丝技术制备了用于柔性压电传感器的聚偏氟乙烯(PVDF)/MXene/聚甲基丙烯酸甲酯(PMMA)压电复合薄膜。由于PMMA和MXene的协同作用,PVDF复合纤维薄膜中β相含量达到了94.2%。PMMA和MXene的协同作用还有效提升了材料的力学性能和压电输出。传感器在低压范围内表现出较高的灵敏度(5.63V/N),并分别表现出70ms和71ms的快速响应和恢复时间。该传感器能够识别人体微小运动,同时,该传感器还可用于乒乓球训练的实时监测,其应用有助于稳定、准确地测量运动参数,可应用于运动和健身监测场景。
Flexible piezoelectric sensors combine the advantages of low cost,flexibility and multifunctionality,and show great market prospects.However,achieving efficient electromechanical conversion remains a challenge for piezoelectric sensors.Therefore,selecting piezoelectric materials with superior performance is crucial for enhancing the output characteristics of flexible piezoelectric sensors.In this study,polyvinylidene fluoride(PVDF)/MXene/poly(methyl methacrylate)(PMMA)piezoelectric composite films for flexible piezoelectric sensors were prepared by electrostatic spinning technique.The content ofβ-phase in the PVDF composite fiber film reaches 94.2%due to the synergistic effect of PMMA and MXene.The synergistic effect of PMMA and MXene also effectively enhances the mechanical properties and piezoelectric output of the material.The sensors exhibit high sensitivity in the low voltage range(5.63 V/N),fast response and recovery times of 70 ms and 71 ms,respectively.The sensor is capable of recognizing small human movements,and can also be used for realtime monitoring of table tennis training.Its application contributes to the stable and accurate measurement of movement parameters,which can be applied in a variety of sports and fitness monitoring scenarios.
作者
付俊
张继炎
何诗峰
师奇松
Jun Fu;Jiyan Zhang;Shifeng He;Qisong Shi(Beijing Key Lab of Special Elastomeric Composite Materials,College of New Materials and Chemical Engineering,Beijing Institute of Petrochemical Technology,Beijing 102617,China)
出处
《高分子材料科学与工程》
北大核心
2026年第1期139-150,共12页
Polymer Materials Science & Engineering
基金
北京市教育委员会资金支持人才培养质量建设-实践创新-高质量应用型“人工智能”应用技术实验实训基地建设(22019821001)。
