Electrical power generator from electrospun hybrid PVDF-BaTiO_(3)nanofiber membranes  

静电纺PVDF和BaTiO_(3)复合纳米纤维发电装置

作　　者：Zhou Lei Zhou Hexiang Ma Jian 周蕾;周鹤翔;马建(上海理工大学出版印刷与艺术设计学院,上海200093;东南大学机械工程学院,南京211189;东南大学教育部新型光源技术与设备工程研究中心,南京211189)

机构地区：[1]College of Communication and Art Design,University of Shanghai for Science and Technology,Shanghai 200093,China [2]School of Mechanical Engineering,Southeast University,Nanjing 211189,China [3]Engineering Research Center of New Light Sources Technology and Equipment of Ministry of Education,Southeast University,Nanjing 211189,China

出　　处：《Journal of Southeast University(English Edition)》2024年第4期403-409,共7页东南大学学报（英文版）

基　　金：The National Natural Science Foundation of China(No.52375563);the Science and Technology on Avionics Integration Laboratory(No.201913069001,20200055069001).

摘　　要：To enhance the piezoelectric performance of piezoelectric polymer thin films in general,hybrid polyvinylidene difluoride(PVDF)and nanosized barium titanate(BaTiO_(3))piezoelectric films were prepared and their piezoelectric performance examined.The hybrid nanofibers were fabricated via electrospinning at an external voltage of 15 kV.The nonwoven fabrics were collected using a roller collection device,and their morphological structures were analyzed via scanning electron microscopy.The crystal structures of these piezoelectric films were characterized via micro-Raman spectroscopy.β-phase of the composite nanofiber membrane almost increased to twice owing to the addition of BaTiO_(3)nanoparticles.Compared with pure,electrospun PVDF piezoelectric film,the piezoelectric characteristics of the hybrid piezoelectric films were considerably enhanced because of the additional BaTiO_(3)nanoparticles.The maximum instantaneous open-circuit voltage of the hybrid PVDF-BaTiO_(3)nanofibers film can be high up to 80 V.The high-performance hybrid piezoelectric films exhibited notable prospects for applications in wearable electronic textiles.为提高压电聚合物薄膜的压电性能,研制了聚偏氟乙烯(PVDF)和钛酸钡(BaTiO_(3))纳米颗粒复合压电薄膜,并对其压电性能进行测试.利用静电纺丝工艺,在15 kV外置电压条件下制备复合纳米纤维,并使用滚筒收集装置收集纳米纤维薄膜.利用扫描电子显微镜表征纳米纤维结构形貌,采用拉曼光谱测量复合压电薄膜的晶体结构.结果表明,BaTiO_(3)纳米颗粒的加入可使复合纳米纤维膜的β相增加近2倍.与纯静电纺丝PVDF压电薄膜相比,添加BaTiO_(3)纳米颗粒的复合压电薄膜压电性显著提高.PVDF和BaTiO_(3)复合纳米纤维薄膜的最大瞬时开路电压可高达80 V.

关 键 词：ELECTROSPINNING polyvinylidene difluoride(PVDF)nanofiber barium titanate(BaTiO_(3)) piezoelectric film 

分 类 号：TH789[机械工程—仪器科学与技术]