• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of Applied Polymer Science >Effect of polarization switching on piezoelectric and dielectric performance of electrospun nanofabrics of poly(vinylidene fluoride)/Ca-Al LDH nanocomposite
【24h】

Effect of polarization switching on piezoelectric and dielectric performance of electrospun nanofabrics of poly(vinylidene fluoride)/Ca-Al LDH nanocomposite

机译：偏振切换对聚（偏二氟乙烯）/ Ca-Al LDH纳米复合材料电纺纳米制剂的压电和介电性能的影响

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

At present, highly flexible, durable, and lightweight piezoelectric nanogenerators with high-power density and energy conversion efficiency are of great interest. The present study reports a new synthetic route for Ca-Al layered double hydroxide (LDH) nanosheets and incorporation of these two-dimensional nanosheets as filler material into poly(vinylidene fluoride) (PVDF) to produce composite nanofabrics by electrospinning. The polymorphism, crystallinity, and the interaction between PVDF and LDH were studied by Fourier transform infrared spectroscopy, X-ray diffraction, and differential scanning calorimetry techniques. The synergetic effect of PVDF-LDH interaction and in situ stretching due to electrospinning facilitates the nucleation of electroactive beta phase up to 82.79%, which makes it a suitable material for piezoelectric-based nanogenerators. The piezoelectric performance of PVDF/Ca-Al LDH composite nanofabrics was demonstrated by hand slapping and frequency-dependent mechanical vibration mode, which delivered a maximum open circuit output voltage of 4.1 and 5.72 V, respectively. Moreover, the composite nanofabrics exhibited a high dielectric constant and low dielectric loss due to superior interfacial polarization at low-frequency region with LDH loading, promising its potential applications in electronic devices. (c) 2019 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2019, 137, 48697.
机译：目前，具有高功率密度和能量转换效率的高度柔韧，耐用和轻质的压电纳米液具有很大的兴趣。本研究报告了Ca-Al层层双氢氧化物（LDH）纳米片的新型合成途径，并将这些二维纳米片作为填料以聚（偏二氟乙烯）（PVDF）掺入，以通过静电纺丝生产复合纳米制造型。通过傅里叶变换红外光谱，X射线衍射和差示扫描量热法研究了多态性，结晶度和PVDF和LDH之间的相互作用。 PVDF-LDH相互作用和静电纺丝原位拉伸的协同作用促进了电活性β相的成核，高达82.79％，这使其成为压电基纳米晶体的合适材料。通过手动拍打和频率依赖性机械振动模式证明了PVDF / CA-AL LDH复合纳米制造型纳米制造型的压电性能，分别输送了4.1和5.72 V的最大开路输出电压。此外，由于LDH负载的低频区域在低频区域处，复合纳米制造具有高介电常数和低介电损耗，这是电子设备中的潜在应用。 （c）2019 Wiley期刊，Inc.J.Phill。聚合物。 SCI。 2019,137,48697。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号