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Development of poly (vinylidene fluoride)/silver nanoparticle electrospun nanofibre mats for energy harvesting
Polymers and Polymer Composites ( IF 2.1 ) Pub Date : 2021-09-16 , DOI: 10.1177/09673911211042005
Roopa Thotadara Shivalingappa 1 , Hebbale Narayana Rao Narasimha Murthy 1 , Pradeep Purushothaman 1 , Prasanna Badiger 1 , Swapnil Savarn 1 , Utsav Majumdar 1 , Gangadhar Angadi 1
Affiliation  

Energy harvesting using piezoelectric materials finds attention of researchers due to miniaturisation. Polyvinylidene fluoride (PVDF) is one such polymeric material with high piezoelectric and pyroelectric properties and hence is used for sensors, actuators, energy harvesting and biomedical devices. This study reports electrospinning of PVDF/Ag nanoparticles (AgNP) nanofibre mats for energy harvesting. Nanofibre mats were prepared by adopting voltage (20 kV), flow rate (1.5 mL/hour) and tip to collector distance (19 cm). The fibre mats were characterised using Fourier-Transformed Infrared Spectroscopy (FTIR), X-Ray Diffraction (XRD) and Scanning Electron Microscopy (SEM). FTIR and XRD results showed 11.84% and 36.36% increase in β-phase and crystallinity, respectively, due to the addition of 1.5 wt. % AgNP to PVDF. SEM micrographs showed decrease in bead formation and increase in fibre diameter from 40 nm to 355 nm due to the addition of AgNP. Sensitivity and voltage output were studied. The fibre mats were used for development of a miniature burglar alarm system, and its response to the applied pressure was tested.



中文翻译:

用于能量收集的聚(偏二氟乙烯)/银纳米粒子静电纺纳米纤维垫的开发

由于小型化,使用压电材料的能量收集引起了研究人员的关注。聚偏二氟乙烯 (PVDF) 是一种具有高压和热电特性的聚合物材料,因此用于传感器、执行器、能量收集和生物医学设备。该研究报告了用于能量收集的 PVDF/Ag 纳米粒子 (AgNP) 纳米纤维垫的静电纺丝。通过采用电压(20 kV)、流速(1.5 mL/小时)和尖端至收集器距离(19 cm)制备纳米纤维垫。使用傅里叶变换红外光谱 (FTIR)、X 射线衍射 (XRD) 和扫描电子显微镜 (SEM) 对纤维垫进行表征。FTIR 和 XRD 结果表明,由于添加了 1.5 wt%,β 相和结晶度分别增加了 11.84% 和 36.36%。% AgNP 到 PVDF。SEM 显微照片显示,由于添加了 AgNP,珠形成减少,纤维直径从 40 nm 增加到 355 nm。研究了灵敏度和电压输出。纤维垫被用于开发微型防盗报警系统,并测试了其对施加压力的响应。

更新日期:2021-09-16
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