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优异的柔性、快速的响应能力和高的灵敏度为应变传感器提供了能够承受和检测拉伸、弯曲和扭曲等多种形变的能力.利用有机-无机复合材料来提高应变传感器的机电性能依然面临着很大的挑战,主要是由于无机材料的脆性以及与有机材料复合时的结构不稳定性.本文利用静电纺丝与水热技术制备了一种基于P(VDF-TrFE)纳米纤维和ZnO纳米线的复合结构的新型应变传感器.所研制的应变器件表现出极高的柔韧性,超快的响应速度和极高的灵敏度(其应变系数高达4.59).特别是它还具备能够检测多种力学形变如拉伸、弯曲的能力.此外本文所研制的传感器还能够轻易地探测肌肉运动,如手指的弯曲与伸直等.
Excellent flexibility, fast response and high sensitivity provide the strain sensor with the ability to withstand and detect a variety of deformations such as tension, flexure and distortion. The use of organic-inorganic composites to improve the electromechanical properties of strain sensors is still faced with The major challenge is mainly due to the brittleness of inorganic materials and the structural instability of composites with organic materials.In this paper, an electrospinning and hydrothermal method based on P (VDF-TrFE) nanofibers and ZnO nanowires Of the composite structure of the new strain sensor.The strain device developed exhibits high flexibility, fast response speed and high sensitivity (strain coefficient of up to 4.59) .In particular it also has the ability to detect a variety of mechanical deformation Such as stretching, bending ability.In addition, the sensor developed in this paper can also easily detect muscle movement, such as finger bending and straightening.