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Flexible piezoelectric PVDF/NDs nanocomposite films: improved electroactive properties at low concentration of nanofiller and numerical simulation using finite element method
Journal of Polymer Research ( IF 2.8 ) Pub Date : 2020-07-07 , DOI: 10.1007/s10965-020-02184-4
Shima Sodagar , Babak Jaleh , Parisa Fakhri , Mohammad Kashfi , Bahareh Feizi Mohazzab , Amir Momeni

In the present work, flexible poly (vinylidene fluoride)/Diamond nanoparticles nanocomposite films with improved electroactive properties at low filler concentration were developed. The combination of nanofiller doping and mechanical stretching was employed to obtain the films with significantly improved electroactive phase at low nanodiamond (ND) concentration, making them the interesting materials for several applications in the electronic devices. The nanocomposite films with different nanofiller concentration were prepared and then stretched under different stretch ratios. The polar phase content of all films was calculated and compared. It was found that the polar phase fraction of the films was significantly enhanced by increasing the nanofiller concentration and the stretch ratio. Moreover, a finite element model was constructed to determine the true value of the strain during the tensile process and to calibrate the stretch ratio. Development of such nanocomposite films with improved piezoelectric properties at low nanofiller concentration can extend their applications for practical usage.



中文翻译:

柔性压电PVDF / NDs纳米复合膜:在低浓度的纳米填料中改善了电活性,并使用有限元方法进行了数值模拟

在本工作中,开发了在低填料浓度下具有改善的电活性的柔性聚偏二氟乙烯/金刚石纳米颗粒纳米复合薄膜。纳米填料掺杂和机械拉伸的结合被用来获得在低纳米金刚石(ND)浓度下具有显着改善的电活性相的薄膜,这使它们成为电子设备中多种应用的有趣材料。制备具有不同纳米填料浓度的纳米复合膜,然后以不同的拉伸比拉伸。计算并比较所有薄膜的极性相含量。发现通过增加纳米填料的浓度和拉伸比,膜的极性相分数显着提高。此外,建立了一个有限元模型来确定拉伸过程中应变的真实值并校准拉伸比。在低的纳米填料浓度下开发具有改善的压电性能的这种纳米复合膜可将其应用扩展到实际应用。

更新日期:2020-07-08
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