Structural and electrical properties of PVDF-TrFE/ZnO bilayer and filled PVDF-TrFE /ZnO single layer nanocomposite films

Dahan, Rozana Mohd; Razif, Muhammad Hafizuddin Md; Zohdi, Nur Syahirah Mahmud; Mahmood, Mohamad Rusop

doi:10.1080/2374068x.2017.1330630

Cited by 5 publications

(6 citation statements)

References 18 publications

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“…In fact, the electroactive and polar β-phase was identified by the specific vibration modes at ∼510, 840, 1287, and 1400 cm −1 that represent CF 2 bending; CF 2 symmetric stretching; CF 2 and CC symmetric stretching and CCC bending; and CH 2 wagging and CC antisymmetric stretching, respectively. 8,43,44 Regarding the TGA thermograms presented in Figure 4b, both porous and dense scaffolds present the same behavior with a single degradation step between 430 and 500 °C, characteristic of this copolymer, which is explained by the chain-stripping where the carbon−hydrogen scissions occur, leading to the formation of hydrogen fluoride. 45 In turn, the DSC thermograms are characterized by two endothermic peaks that are associated with the ferroelectric−paraelectric transition (T FP ) between 90 and 100 °C and the melting temperature of the paraelectric phase (T M ) between 130 and 150 °C, as presented in Figure 4c.…”

Section: Resultsmentioning

confidence: 77%

“…The FTIR-ATR spectra demonstrate that independently of the experimental conditions all samples feature the same infrared spectra with the main adsorption bands corresponding to the all trans TTT′ polymer conformation (Figure a). In fact, the electroactive and polar β-phase was identified by the specific vibration modes at ∼510, 840, 1287, and 1400 cm –1 that represent CF 2 bending; CF 2 symmetric stretching; CF 2 and CC symmetric stretching and CCC bending; and CH 2 wagging and CC antisymmetric stretching, respectively. ,, …”

Section: Results and Discussionmentioning

confidence: 99%

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Tuning Myoblast and Preosteoblast Cell Adhesion Site, Orientation, and Elongation through Electroactive Micropatterned Scaffolds

Marques‐Almeida¹,

Cardoso

Ribeiro³

et al. 2019

ACS Appl. Bio Mater.

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Electroactive polymers are being increasingly used in tissue engineering applications. Together with the electromechanical clues, morphological ones have been demonstrated to determine cell proliferation and differentiation. This work reports on the micropatterning of poly(vinylidene fluoride-co-trifluoroethylene), P(VDF-TrFE) scaffolds, and their interaction with myoblast and preosteoblasts cell lines, selected based on their different functional morphology. The scaffolds were obtained by soft lithography and obtained in the form of arrays of lines, intermittent lines, hexagons, linear zigzags, and curved zigzags with dimensions of 25, 75, and 150 μm. Moreover, the scaffolds were tested in cell adhesion assays of myoblasts and preosteoblasts cell lines. The results show that more linear surface topographies and dense morphology have a large potential in the regeneration of musculoskeletal tissue, while nonpatterned scaffolds or more anisotropic surface microstructures present largest potential to promote the growth and regeneration of bone tissue. In this way, cell adhesion site, orientation, and elongation can be controlled by choosing properly the topography and morphology of the scaffolds, indicating their suitability and potential for further proliferation and differentiation assays.

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Section: Resultsmentioning

confidence: 77%

Section: Results and Discussionmentioning

confidence: 99%

Tuning Myoblast and Preosteoblast Cell Adhesion Site, Orientation, and Elongation through Electroactive Micropatterned Scaffolds

Marques‐Almeida¹,

Cardoso

Ribeiro³

et al. 2019

ACS Appl. Bio Mater.

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“…Three obvious transmittance bands at 840, 1285, and 1400 cm –1 correspond to the polar β-phase . A transmittance peak is assigned for CH 2 wagging vibration at 1400 cm –1 , for CH 2 rocking at 840 cm –1 , and for CF 2 symmetric stretching vibration at 1279 cm –1 in the β molecular chain . Additionally, the related band at 765 cm –1 is indexed as the CF 2 bending of the α-phase. , …”

Section: Resultsmentioning

confidence: 99%

“…21 A transmittance peak is assigned for CH 2 wagging vibration at 1400 cm −1 , for CH 2 rocking at 840 cm −1 , and for CF 2 symmetric stretching vibration at 1279 cm −1 in the β molecular chain. 22 Additionally, the related band at 765 cm −1 is indexed as the CF 2 bending of the αphase. 23,24 According to the Beer−Lambert law, 25,26 the amount of βphase (F(β)) can be calculated by using the following eq 1:…”

Section: Structure and Morphology Analysis Figure 2amentioning

confidence: 99%

Enhancing the Piezoelectric Sensing of CFO@PDA/P(VDF-TrFE) Composite Films through Magnetic Field Orientation

Zhou

Chen

et al. 2022

ACS Appl. Mater. Interfaces

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Magnetic nanofiller is helpful for improving the piezoelectric properties of P(VDF-TrFE)-based composites, which shows promising potential as a flexible sensor or energy harvester. In this work, we use the interaction between the magnetic nanofiller and magnetic field to modify the structure of CoFe2O4 (CFO)@polydopamine (PDA)/P(VDF-TrFE) composite, in which CFO@PDA works as the nanofiller into the P(VDF-TrFE) matrix. It was found that the magnetic field orientation during polymer curing can significantly increase the content of the β-phase and d 33 of the composite. Regarding a typical composite film with 7 wt % CFO@PDA, the composite exhibits versatile sensing originated from the ball impact, hot-water droplet, bending, and pressing. In a noncontact magnetic field-driven experiment, the magnetic field oriented film produced the highest output voltages of 17.4 mV at 4 Hz and 12 mV at a drive amplitude of 19 Vpp, in contrast to the values of 7.1 mV and 7 mV for the film without magnetic field orientation, respectively. The LED without any charging capacitor can be instantaneously lighted through vertically pressing the oriented films. Thus, this work proposes a strategy of magnetic field orientation to improve the piezoelectric performance of the CFO@PDA/P(VDF-TrFE) multifunctional composite film.

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“…Research on P(VDF-TrFE) composites encompassing this method mainly focus on changing various parameters, including the annealing temperature and speed of spin-coating for better results [79][80][81]. Dahan et al [82] prepared spin-coated single and bilayer 0-3 film of P(VDF-TrFE) dissolved in zinc oxide dispersed methyl ethyl ketone (MEK). The methodology included the dissolution of P(VDF-TrFE) and zinc oxide on MEK individually.…”

Section: Composite Prepared From Spin-coating Methodsmentioning

confidence: 99%

Advances in P(VDF-TrFE) Composites: A Methodical Review on Enhanced Properties and Emerging Electronics Applications

P S,

Swain,

Rajput

et al. 2023

Condensed Matter

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Piezoelectric polymers are a class of material that belong to carbon–hydrogen-based organic materials with a long polymer chain. They fill the void where single crystals and ceramics fail to perform. This characteristic of piezoelectric polymers made them unique. Their piezoelectric stress constant is higher than ceramics and the piezoelectric strain is lower compared to ceramics. This study’s goal is to present the most recent information on poly(vinylidene fluoride) with trifluoroethylene P(VDF-TrFE), a major copolymer of poly(vinylidene fluoride) PVDF with piezoelectric, pyroelectric, and ferroelectric characteristics. The fabrication of P(VDF-TrFE) composites and their usage in a variety of applications, including in actuators, transducers, generators, and energy harvesting, are the primary topics of this work. The report provides an analysis of how the addition of fillers improves some of the features of P(VDF-TrFE). Commonly utilized polymer composite preparation techniques, including spinning, Langmuir–Blodgett (LB), solution casting, melt extrusion, and electrospinning are described, along with their effects on the pertinent characteristics of the polymer composite. A brief discussion on the literature related to different applications (such as bio-electronic devices, sensors and high energy-density piezoelectric generators, low mechanical damping, and easy voltage rectifiers of the polymer composite is also presented.

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Structural and electrical properties of PVDF-TrFE/ZnO bilayer and filled PVDF-TrFE /ZnO single layer nanocomposite films

Cited by 5 publications

References 18 publications

Tuning Myoblast and Preosteoblast Cell Adhesion Site, Orientation, and Elongation through Electroactive Micropatterned Scaffolds

Tuning Myoblast and Preosteoblast Cell Adhesion Site, Orientation, and Elongation through Electroactive Micropatterned Scaffolds

Enhancing the Piezoelectric Sensing of CFO@PDA/P(VDF-TrFE) Composite Films through Magnetic Field Orientation

Advances in P(VDF-TrFE) Composites: A Methodical Review on Enhanced Properties and Emerging Electronics Applications

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