PVDF@AgNWs复合压电发电机的制备与性能研究  

Preparation and properties of PVDF@AgNWs composite piezoelectric generator

作　　者：陈伟 王燕 胡永达[2] 陈金菊 CHEN Wei;WANG Yan;HU Yongda;CHEN Jinju(School of Materials and Energy,University of Electronic Science and Technology of China,Chengdu610054,China;School of Integrated Circuit Science and Engineering,University of Electronic Science and Technology of China,Chengdu610054,China)

机构地区：[1]电子科技大学材料与能源学院,四川成都610054 [2]电子科技大学集成电路科学与工程学院,四川成都610054

出　　处：《电子元件与材料》2023年第12期1424-1431,共8页Electronic Components And Materials

基　　金：四川省科技计划(2023YFG0215)。

摘　　要：采用静电纺丝法和退火后处理工艺制备高β相含量的聚偏氟乙烯(PVDF)纤维膜,并通过复合银纳米线(AgNWs)形成导电网络来获得高性能PVDF@AgNWs压电发电机。研究了制备工艺(静电纺丝、退火)及AgNWs添加量对器件压电输出性能的影响,结果表明,电纺PVDF纤维膜经退火并控制AgNWs质量分数0.10%条件下,PVDF@AgNWs压电发电机在5 MPa压力下,可输出约114 V压电电压及约1.3×10-7 A电流。该压电发电机具有良好的能量采集性能,可直接为电容器充电,并可驱动LCD显示模组,在自供电柔性可穿戴电子领域具有应用潜力。Polyvinylidene fluoride(PVDF)fiber membranes with highβ-phase content were prepared by electrospinning and post-annealing treatment.A high-performance PVDF@AgNWs piezoelectric generator was then obtained by forming a conductive network with composite silver nanowires(AgNWs).The effect of spinning and annealing strategies on the phase transition of PVDF was analyzed by XRD and FIIR.The effects of preparation process and AgNWs addition on the piezoelectric output performance of the device were studied.The results show that under the condition of annealing and by controlling the mass fraction of AgNWs at 0.10%,the PVDF@AgNWs piezoelectric generator can output 114 V piezoelectric voltage at 1.3×10-7 A current under the pressure of 5 MPa.The piezoelectric generator can directly charge capacitors and drive LCD display modules.It has good energy harvesting performance and shows application potential in the field of self-powered flexible wearable electronics.

关 键 词：聚偏氟乙烯 银纳米线 静电纺丝 退火 压电发电机 

分 类 号：TQ317.3[化学工程—高聚物工业] TQ316.6