A.C impedance, XRD, DSC, FTIR studies on PbTiO3 dispersoid pristine PVdF-co-HFP and PEMA blended PVdF-co-HFP microcomposite electrolytes

Jayaraman, R.; Vickraman, P.; Subramanian, Neelakrishnan; Justin, A. Simon

doi:10.1016/j.jnoncrysol.2015.12.019

Cited by 16 publications

(8 citation statements)

References 22 publications

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“…The XRD plots obtained for sample 1 (Figure 9(c)) and sample 4 (Figure 9(d)) highlighted the presence of specific crystal structures and bonds reported in previous studies (like C-Ca, C-C, and C = O). 25–27 The peak observed in Figure 9(c) for the C-Ca bond at 27.288° value of 2Theta (2⊖) for sample1 got shifted towards the left at 2⊖ = 26.295° for sample 4. The peak shift with increased sharpness outlined the formation of a strong C-Ca bond in sample 4 for improved crystal structure in PVDF composites.…”

Section: Resultsmentioning

confidence: 94%

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Multi-material printing of PVDF composites: A customized solution for maintenance of heritage structures

Kumar

Singh

Ahuja

2022

Proceedings of the Institution of Mechanical Engineers, Part L:

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In the past three decades, 3D printing technologies have emerged as a convenient tool for the repair and maintenance of heritage structures. But hitherto little has been reported on multi-material 3D printed composites with 4D properties for the repair and maintenance of heritage structures. The present study reports the investigations on multi-material 3D printing of conducting and non-conducting polyvinylidene fluoride (PVDF) composite layers with self-actuating and self-healing properties to repair non-structural cracks in heritage buildings. The non-conducting (PVDF-CaCO3) and conducting (PVDF-graphene-Mn doped ZnO) composites were 3D printed and tested for electrostriction-based strain measurement for 4D analysis. The thermo-mechanical properties of the composite solution were obtained from dynamic mechanical analysis (DMA). The electrical, bonding, and morphological properties were investigated by current-voltage (I-V), x-ray diffraction (XRD), Fourier transformed infrared (FTIR), and scanning electron microscopy (SEM)-energy dispersive spectroscopy (EDS) analysis. Results of the self-elongation and contraction by electrostriction in PVDF composite demonstrate the feasibility of 3D printing technology as a novel tool to fabricate cost-effective smart solutions for the repair and maintenance of heritage structures.

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Section: Resultsmentioning

confidence: 94%

“…The literature review also revealed that significant studies have been reported on the use of 3D technologies for the conservation and restoration of cultural heritage. 24–29 But hitherto little has been explored for the application of 3D printing-based repair of heritage buildings.…”

Section: Introductionmentioning

confidence: 99%

Multi-material printing of PVDF composites: A customized solution for maintenance of heritage structures

Kumar

Singh

Ahuja

2022

Proceedings of the Institution of Mechanical Engineers, Part L:

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“…Many different types of gadgets, from hearing aids to dentures to fossil coating to artificial nails to packaging to medical equipment, all benefit from the PEMA usage as a reliable raw material (Krumenacker, 2019). Few studies based on PVVH were published in the literature (Yassin et al, 2019, Lei et al, 2011, although PEMA was added into other polymers to study their properties, including poly (vinyl chloride) (Mohan et al, 2011), poly (vinylidene fluoride) (Jayaraman et al, 2016), poly (vinyl acetate) (Premila et al, 2017), and graphene oxide (Mohanty and Swain, 2019).…”

Section: Introductionmentioning

confidence: 99%

Characterization of PVVH/PEMA blend polymer with gold nanoparticles as corrosion inhibitors for N80 carbon steel in a 5% sulfamic acid solutions

Yassin¹,

Abdallah²

2022

Delta University Scientific Journal

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In this study, we used the solution casting approach to create a polymer mix of Poly (vinyl chloride-co-vinyl acetate-co-2-hydroxypropyl acrylate) and Poly (ethyl methacrylate) (PEMA), which we subsequently filled with 3 wt % of gold nanoparticles (Au-NPs). By electrochemical procedures such electrochemical impedance spectroscopy (EIS), the present composite was used as corrosion inhibitors for N80 carbon steel in 5 % sulfamic acid solutions. The DFT technique used quantum chemical computations to establish an acceptable theoretical interpretation for the composite's adsorption and inhibition performance on the carbon steel surface. In the case of blend 3% Au-NPs, the inhibition productivity climbs to 89 % when the concentrations are increased to 5 ×10-4 M. It was discussed as it relates to the nanocomposite's adsorption on the steel metal surface, which was confirmed using SEM. The total impedance increased as the studied polymer concentration increased, and the continual addition to the phase angle move was clearly connected with the growing of the investigated polymer concentration adsorbed on carbon steel species, according to Bode plots. The quantum chemical variables (DFT and Mulliken atomic charges) and experimental computations had a significant agreement, confirming the nanocomposite's efficacy as corrosion inhibitors.

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“…Blending polymer electrolytes to increase conductivity and other characteristics is a simple and effective technique. PVDF, PVDF-co-HFP, PMMA, and PVC [8][9][10] have been the focus of recent polymer electrolyte mixing research. The unusual interactions between polymers (primarily van der Waals forces and hydrogen bonds) are the primary cause for the beneficial impact of polymer electrolytes, which boost battery system compatibility and significantly reduce the crystalline area of the battery system.…”

Section: Introductionmentioning

confidence: 99%

Effect of PMMA on PVDF-co-HFP/MgTf3 Polymer Composite with Improved Ionic Conductivity, Thermal and Structural Properties

Kundana¹,

Venkatapathy

Neeraja³

et al. 2022

Orient. J. Chem

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Polymer blend electrolytes composed of poly(vinylidene fluoride-co-hexafluoro-propylene) (PVDF-co-HFP), poly(methyl methacrylate) (PMMA) and 1•0 M magnesium trifluoromethanesulfonate (MgTf3) as salt have been synthesized using solution caste technique by varying the PMMA@PVDF-co-HFP/Mg2+ blend concentration ratio systematically. However, Mg2+ ions interaction with electrode materials and electrolyte molecules results in slow Mg2+ dissociation and diffusion, which in turn leads to inadequate power density and cycle stability. X-ray diffraction (XRD), FTIR, scanning electron microscopy (SEM), Differential scanning calorimetry (DSC), complex impedance spectroscopy, linear sweep voltammetry, AC and DC ionic conductivity studies were used to examine the impact of compositional modification of PMMA in the composite gel polymer electrolyte system. The PVDF-co-HFP/Mg2+ and PMMA@PVDF-co-HFP /Mg2+ mix-based solid polymer electrolyte membrane provides optimal ionic conductivity of 8.014×10-6 and 5.612×10-5 at ambient temperature, and the ionic conductivity of the system rises with increasing PMMA content. Scanning electron microscopy and x-ray diffraction analyses validate the improved ionic conductivity. Electrical conductivity was measured using electrochemical impedance spectroscopy at temperatures ranging from 303 to 363 K. Changes in temperature and PMMA concentration cause an increase in ionic conductivity. Loss tangent and imaginary part of modulus (M"), which relate to dielectric and conductivity relaxation, respectively, demonstrate a quicker relaxation process as PMMA concentration increases up to an optimal value. The modulus (M") demonstrates that the conductivity relaxation is not of the Debye type (broader than the Debye peak).

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A.C impedance, XRD, DSC, FTIR studies on PbTiO3 dispersoid pristine PVdF-co-HFP and PEMA blended PVdF-co-HFP microcomposite electrolytes

Cited by 16 publications

References 22 publications

Multi-material printing of PVDF composites: A customized solution for maintenance of heritage structures

Multi-material printing of PVDF composites: A customized solution for maintenance of heritage structures

Characterization of PVVH/PEMA blend polymer with gold nanoparticles as corrosion inhibitors for N80 carbon steel in a 5% sulfamic acid solutions

Effect of PMMA on PVDF-co-HFP/MgTf3 Polymer Composite with Improved Ionic Conductivity, Thermal and Structural Properties

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