Structure–Properties Relationship of Electrospun PVDF Fibers

Částková, Klára; Kaštyl, Jaroslav; Sobola, Dinara; Petruš, Josef; Šťastná, Eva; Riha, David S.; Tofel, Pavel

doi:10.3390/nano10061221

Cited by 65 publications

(47 citation statements)

References 39 publications

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“…Even though PVDF requires a specific approach to patterns, for example sputtering, otherwise widely used methods for patterning other polymers cannot be used, and a sufficient and reliable patterning can today be achieved by a number of methods, most commonly spin-coating of PVDF solution in a polar solvent [ 7 , 8 ]. In the case of nanofiber production, electrospinning arose as the method with the best results and most control over the parameters of the resulting fiber, such as the diameter, inclusions and to some extent even crystalline phases [ 9 , 10 ]. For this reason, electrospinning was also used to create the materials described in this paper.…”

Section: Introductionmentioning

confidence: 99%

Case Study of Polyvinylidene Fluoride Doping by Carbon Nanotubes

et al. 2021

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Modern material science often makes use of polyvinylidene fluoride thin films because of various properties, like a high thermal and chemical stability, or a ferroelectric, pyroelectric and piezoelectric activity. Fibers of this polymer material are, on the other hand, much less explored due to various issues presented by the fibrous form. By introducing carbon nanotubes via electrospinning, it is possible to affect the chemical and electrical properties of the resulting composite. In the case of this paper, the focus was on the further improvement of interesting polyvinylidene fluoride properties by incorporating carbon nanotubes, such as changing the concentration of crystalline phases and the resulting increase of the dielectric constant and conductivity. These changes in properties have been explored by several methods that focused on a structural, chemical and electrical point of view. The resulting obtained data have been documented to create a basis for further research and to increase the overall understanding of the properties and usability of polyvinylidene fluoride fiber composites.

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Section: Introductionmentioning

confidence: 99%

Case Study of Polyvinylidene Fluoride Doping by Carbon Nanotubes

et al. 2021

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“…To create a PVDF fiber, methods like spin coating or electrospinning, are used to manufacture fibers with stable and repeatable results. Electrospinning specifically has been used in the case of this paper, as it allows for control over fiber diameter, inclusions, and crystalline phase to a certain extent [5].…”

Section: Introductionmentioning

confidence: 99%

Characterization of Polyvinylidene Fluoride (PVDF) Electrospun Fibers Doped by Carbon Flakes

et al. 2020

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Polyvinylidene fluoride (PVDF) is a modern polymer material used in a wide variety of ways. Thanks to its excellent resistance to chemical or thermal degradation and low reactivity, it finds use in biology, chemistry, and electronics as well. By enriching the polymer with an easily accessible and cheap variant of graphite, it is possible to affect the ratio of crystalline phases. A correlation between the ratios of crystalline phases and different properties, like dielectric constant as well as piezo- and triboelectric properties, has been found, but the relationship between them is highly complex. These changes have been observed by a number of methods from structural, chemical and electrical points of view. Results of these methods have been documented to create a basis for further research and experimentation on the usability of this combined material in more complex structures and devices.

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“…Also, when studying the effect of doped or solvent on the bond lengths of polymer materials, it cannot be studied by X-ray diffraction method or SEM method [ 41 , 42 ].…”

Section: Introductionmentioning

confidence: 99%

Effect of doped H, Br, Cu, Kr, Ge, As and Fe on structural features and bandgap of poly C13H8OS-X: a DFT calculation

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Duong

Van

et al. 2021

Designed Monomers and Polymers

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Structural features such as the shape, the lattice constant, the bond length, the total energy per cell, and the energy bandgap (E g ) of C 13 H 8 OS-X are studied by the calculating Partial Density Of States (PDOS), and DOS package of the Material Studio (MS) software. Calculations show that the bond length and the bond angle between atoms insignificant change as 1.316 Å to 1.514 Å for C-C, 1.211 Å for C-O, 1.077 Å to 1.105 Å for C-H; bond angle of round one changes from 118.883° to 121.107° for C-C-C, from 117.199° to 122.635° for H-C-C, from 119.554° to 123.147° for C-C-O and from 109.956° to 117.537° for C-C-H. When C13H8OS-X doped in the order of -Br, -Cu, -Kr, -Ge, -As, and -Fe then bond lengths, bond angles between atoms have a nearly constant value. Particularly for links C-X, there is a huge change in value, respectively 1.876, 1.909, 10.675, 2.025, 2.016, 2.014 Å; the total energy change from E tot = −121,794 eV to E tot = −202,859 eV, and the energy band gap decreases from E g = 2.001 eV to E g = 0.915 eV. The obtained results are useful and serve as a basis for future experimental research.

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Structure–Properties Relationship of Electrospun PVDF Fibers

Cited by 65 publications

References 39 publications

Case Study of Polyvinylidene Fluoride Doping by Carbon Nanotubes

Case Study of Polyvinylidene Fluoride Doping by Carbon Nanotubes

Characterization of Polyvinylidene Fluoride (PVDF) Electrospun Fibers Doped by Carbon Flakes

Effect of doped H, Br, Cu, Kr, Ge, As and Fe on structural features and bandgap of poly C13H8OS-X: a DFT calculation

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