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The Crystalline Microstructure, Surface Morphology and Ferroelectric Properties of beta-Phase in the Poly(Vinylidene Fluoride)/Carbon Nanotubes (PVDF/CNTs) Composite Thin Film Using the Electrospinning Approach
- Issue Date
- Dec-2018
- Publisher
- AMER SCIENTIFIC PUBLISHERS
- Keywords
- Poly(Vinylidene Fluoride) (PVDF); Carbon Nanotubes (CNTs); Electrospinning; Ferroelectric; Piezoelectric; Nanofiber
- Citation
- MATERIALS FOCUS, v.7, no.6, pp.873 - 878
- Journal Title
- MATERIALS FOCUS
- Volume
- 7
- Number
- 6
- Start Page
- 873
- End Page
- 878
- ISSN
- 2169-429X
- Abstract
- The Poly(Vinylidene Fluoride)/carbon nanotubes (PVDF/CNTs) piezoelectric composite films for electrical rotors have been fabricated using a modified electrospinning device with a rotating collector. beta phase dominant ferroelectric PVDF thin films with a remnant polarization of 3.2 mu C/m(2) were achieved by optimizing the concentration of 0.5 wt% of CNTs. The effect of concentration of CNTs in modifying PVDF crystalline phase structure has been enhancing beta phase transformation in PVDF. This aspect has been confirmed throuhgt X-ray diffraction and infrared spectroscopy data. These structures were morphologically analyzed by scanning electron microscopy (SEM) with 600 divided by 800 nm diameter of CNTs-PVDF. Overall, our results highlight the potential of the conductivity of the solution and the morphology of the mat obtained by electrospinning are related by the influence of the CNTs concentration.
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