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《工程塑料应用》 2020年第05期
DOI:10.3969/j.issn.1001-3539.2020.05.004
衬底对聚偏氟乙烯-三氟乙烯基纳米能量发生器压电性能的影响
刘茜,李洁,方兆舟,舒落生,李迎春
中北大学材料科学与工程学院,太原 030051 
Effects of Substrate on Piezoelectricity of Poly(vinylidene fluoride-trifluoroethylene) based Nano Energy Generators
Liu Xi, Li Jie, Fang Zhaozhou, Shu Luosheng, Li Yingchun
School of Materials Science and Engineering, North University of China, Taiyuan 030051, China 
摘要:采用旋涂工艺制备了聚偏氟乙烯-三氟乙烯(PVDF-TrFE)薄膜,在此基础上设计并制备了不同衬底的“三明治”式柔性纳米能量发生器。傅里叶变换红外光谱测试结果表明PVDF-TrFE薄膜β相含量为16.14%,准静态压电应变常数d33测试结果显示其d33值为10.1 pC/N。分别采用玻璃、聚萘二甲酸乙二酯(PEN)和聚对苯二甲酸乙二酯(PET)作为衬底材料,研究其对能量发生器压电性能的影响。结果表明,在KDL-02/02L冲击锤作用下具有最低拉伸弹性模量的PET衬底纳米能量发生器显示出最高的电压输出(2.13 V),此外在12 Hz激励下,PET衬底纳米能量发生器产生最高的压电电压(1.01 V)。在多达1000次的不间断机械振动下,PET衬底纳米能量发生器显示出优良的电学稳定性和机械稳定性。 
Abstract:Poly(vinylidene fluoride-trifluoroethylene) (PVDF-TrFE) film were prepared by spin-coating method, on this basis, sandwich-type flexible nano energy generators with various substrates were designed and prepared. Fourier transform infrared spectroscopy testing result shows that the β phase content of the PVDF-TrFE film is 16.14%, and quasi-static piezoelectric strain constant d33 testing result shows that the d33 value of PVDF-TrFE film is 10.1 pC/N. Slide glass, poly(ethylene naphthalate) (PEN) and poly(ethylene terephthalate) (PET) were selected as substrates and their effects on the piezoelectricity of the energy generators were investigated. The results indicates that nano energy generator with PET substrate possessing the lowest tensile elastic modulus shows the highest voltage output (2.13 V) under KDL-02/02L impact hammer. In addition, the nano energy generator with PET substrate produces the highest piezoelectric voltage (1.01 V) at 12 Hz of frequency by means of an Izod exciter. Along with superior electrical properties, the nano energy generator with PET substrate also exhibits excellent electrical stability as well as mechanical stability after 1000 cycles of continuous mechanical vibration testing. 
关键词:聚偏氟乙烯-三氟乙烯;纳米能量发生器;压电;衬底 
Keywords:poly(vinylidene fluoride-trifluoroethylene); nano energy generator; piezoelectric property; substrate 
基金:山西省国际科技合作项目(201703D421007) 
本文引用格式:
刘茜,李洁,方兆舟,等.衬底对聚偏氟乙烯-三氟乙烯基纳米能量发生器压电性能的影响[J].工程塑料应用,2020,48(5):17-22.
Liu Xi,Li Jie,Fang Zhaozhou,et al. Effects of substrate on piezoelectricity of poly(vinylidene fluoride-trifluoroethylene) based nano energy generators[J]. Engineering Plastics Application,2020,48(5):17-22. 

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