随着智能化时代的到来,柔性压电传感器作为传感器的主要类型之一,是感知信息、发出信号的关键,柔性压电材料的选择与传感器的性能参数密切相关。与传统的压电材料相比,聚偏氟乙烯(PVDF)在柔性、可拉伸性、化学稳定性、机电转换、易用性和声传播阻抗方面具有显著优势,因此PVDF成为研究的热点。详细介绍PVDF柔性压电式传感器的工作原理,全面介绍了不同类型基于PVDF的柔性压电式传感器,分析了其优缺点及发展前景,为高性能、多功能的柔性PVDF压电传感器提供一些启示。
With the arrival of the intelligent era,flexible piezoelectric sensors,as a main type of sensors,are the key to perceive information and send signals.The selection of flexible piezoelectric materials is closely related to the performance parameters of sensors.Compared with traditional piezoelectric materials,polyvinylidene fluoride (PVDF) has significant advantages in flexibility,stretchability,chemical stability,electromechanical conversion,ease of use and acoustic propagation impedance.Therefore,PVDF has become the focus of research.In this paper,the working principle of PVDF flexible piezoelectric sensors was introduced in detail,and different kinds of PVDF-based flexible piezoelectric sensors were illustrated comprehensively.The advantages,disadvantages and development prospects of PVDF piezoelectric sensors were analyzed,which provided some enlightenment for high-performance and multifunctional flexible PVDF piezoelectric sensors.
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基金资助
国家自然科学基金(51473122);中国博士后科学基金(2016M591390);天津市自然科学基金(18JCYBJC18500)
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