Fabrication and Characterization of Piezoelectric Composite Nanofibers Based on Poly(vinylidene fluoride-cohexafluoropropylene) and Barium Titanate Nanoparticle 


Vol. 21,  No. 3, pp. 473-479, Mar.  2020
10.1007/s12221-020-9803-1


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  Abstract

Poly(vinylidene fluoride-co-hexafluoropropylene) (PVDF-HFP)-based composite nanofibers containing different barium titanate (BaTiO3) nanoparticle contents of 10-60 wt% were fabricated by an efficient electrospinning. The piezoelectric performance of PVDF-HFP/BaTiO3 composite nanofibers under a periodic compressional pressure of ~20 kPa was investigated by considering the BaTiO3 content and the electric poling. The X-ray diffraction patterns revealed the presence of piezoelectric tetragonal BaTiO3 nanoparticles in the composite nanofibers with PVDF 棺-form crystals. The SEM images demonstrated that the BaTiO3 nanoparticles were dispersed uniformly in the composite nanofibers at relatively low loadings of 10-20 wt%, but they formed aggregates at high loadings of 30-60 wt%. The piezoelectric performance of the composite nanofibers increased with the BaTiO3 content up to 20 wt% and decreased at higher BaTiO3 contents of 30- 60 wt%, which results from the trade-off effect between the piezoelectric performance and the dispersibility of BaTiO3 nanoparticles in the composite nanofibers. Accordingly, the composite nanofibers with 20 wt% BaTiO3 exhibited maximum piezoelectric outputs such as voltage of ~9.63 V, current ~0.52 關A, and electric power of ~7892.2 nW. After the electric poling, the piezoelectric performance was further enhanced to ~11.69 V, ~20.56 關A, and ~1115.2 nW, which was high enough to light up a small LED bulb after rectification.

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  Cite this article

[IEEE Style]

S. H. Lee, Y. C. Choi, M. S. Kim, K. M. Ryu, Y. G. Jeong, "Fabrication and Characterization of Piezoelectric Composite Nanofibers Based on Poly(vinylidene fluoride-cohexafluoropropylene) and Barium Titanate Nanoparticle," Fibers and Polymers, vol. 21, no. 3, pp. 473-479, 2020. DOI: 10.1007/s12221-020-9803-1.

[ACM Style]

Sang Hoon Lee, Young Chul Choi, Min Su Kim, Kyung Moon Ryu, and Young Gyu Jeong. 2020. Fabrication and Characterization of Piezoelectric Composite Nanofibers Based on Poly(vinylidene fluoride-cohexafluoropropylene) and Barium Titanate Nanoparticle. Fibers and Polymers, 21, 3, (2020), 473-479. DOI: 10.1007/s12221-020-9803-1.

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pISSN : 1229 - 9197
eISSN : 1875 - 0052

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