Novel polymer composites of RuO2@nBaTiO3/PVDF with a high dielectric constant

Silakaew, Kanyapak; Swatsitang, Ekaphan; Thongbai, Prasit

doi:10.1016/j.ceramint.2022.03.173

Cited by 12 publications

(7 citation statements)

References 40 publications

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“…In our study, we demonstrate the advantages of using the conventional mixed oxide method for synthesizing RuO 2 -nBT hybrid particles over methods like hydrothermal synthesis [33], which struggles with scalability for large-scale production. The simplicity of conventional method, use of basic equipment, and reliance on water instead of toxic solvents like DMF [35,36] reduce costs, enhance safety, and improve environmental sustainability, making it ideal for electronics industry applications.…”

Section: Resultsmentioning

confidence: 87%

“…Recognized as a material with substantial dielectric properties, nBT has garnered significant attention for its potential applications in capacitors. RuO 2 , recognized as a metal-like oxide [31,33], is expected to significantly improve the dielectric properties of PVDF composites. This enhancement is primarily due to the increased interfacial polarization at the interfaces between RuO 2 -nBT and RuO 2 -PVDF, which contributes to an elevated dielectric response.…”

Section: Introductionmentioning

confidence: 99%

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Notably enhanced dielectric response with low loss in PVDF composites filled with RuO₂–BaTiO₃ hybrid particles

Silakaew,

Thongbai

2024

Mater. Res. Express

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This study delineates the process of fabricating and the results of investigating the dielectric properties of hybrid particles created through the integration of Poly(vinylidene fluoride) (PVDF) filled with RuO2 coated on BaTiO3 nanoparticles (nBT), designated as RuO2–nBT. These hybrid particles were successfully synthesized employing a simple and cost–effective solid–state reaction method. The inclusion of RuO2–nBT in the PVDF matrix engendered a notable enhancement in its dielectric properties. Notably, a RuO2–nBT fraction of 0.5 manifested a dielectric constant (ε') of 107.4 and a dielectric loss tangent (tanδ) value of 0.062 at 30 C and 1 kHz. These findings signify the effective role of interfacial polarization occurring between the PVDF matrix and the RuO2–nBT hybrid particles, leading to a marked improvement in dielectric attributes. Moreover, the observed low tanδ value indicates the elimination of conductive pathways, an inhibitory effect attributed to the incorporation of RuO2–nBT hybrid particles. This study underscores the promising potential of RuO2–nBT hybrid particles in fine–tuning and augmenting the dielectric properties of polymer composites, particularly in scenarios necessitating low tanδ and high ε' values.

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Section: Resultsmentioning

confidence: 87%

Section: Introductionmentioning

confidence: 99%

Notably enhanced dielectric response with low loss in PVDF composites filled with RuO₂–BaTiO₃ hybrid particles

Silakaew,

Thongbai

2024

Mater. Res. Express

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“…Polymer materials are widely used in electronic fields, such as integrated circuit boards, film capacitors, and display screens, due to their excellent processability and low dielectric loss. Due to the huge demand, a variety of polymer materials have gradually emerged, including polystyrene, polyethylene, polycarbonate, polyvinylidene fluoride, and other materials [ 59 , 60 , 61 , 62 ].…”

Section: Influence Of Polymer Matrix On Dielectric Properties Of Comp...mentioning

confidence: 99%

Contributing Factors of Dielectric Properties for Polymer Matrix Composites

Wang

Che

et al. 2023

Polymers

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Due to the trend of multi-function, integration, and miniaturization of electronics, traditional dielectric materials are difficult to satisfy new requirements, such as balanced dielectric properties and good designability. Therefore, high dielectric polymer composites have attracted wide attention due to their outstanding processibility, good designability, and dielectric properties. A number of polymer composites are employed in capacitors and sensors. All these applications are directly affected by the composite’s dielectric properties, which are highly depended on the compositions and internal structure design, including the polymer matrix, fillers, structural design, etc. In this review, the influences of matrix, fillers, and filler arrangement on dielectric properties are systematically and comprehensively summarized and the regulation strategies of dielectric loss are introduced as well. Finally, the challenges and prospects of high dielectric polymer composites are proposed.

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“…Dielectric polymers are suitable for the aforementioned applications, in particular in addressing flexible and printable electronics applications. [ 1 ] In fact, dielectric ceramics typically show enhanced dielectric properties, [ 2 ] but polymers are characterized by flexibility, easy processing, and low cost compared to dielectric ceramics. [ 3 ] Therefore, the combination of high‐dielectric polymers and ceramics is a suitable approach to take advantage of the main characteristics of each constituent, [2a,4] leading to a new generation of materials for sensors, [1b,1c] capacitors, and electronic components [1a,5] or medical devices, [ 3,5 ] among others.…”

Section: Introductionmentioning

confidence: 99%

Tailoring the Electrical Response of Polyvinylidene Fluoride Nanocomposites with Electrically Conductive and Dielectric Fillers

Rodrigues-Marinho,

Tubio,

Lanceros-Mendez

et al. 2023

Adv Eng Mater

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Polymer‐based composites combining the flexibility, low‐density and processability of the matrix with the tailored functional performance provided by the fillers are also particularly suitable for large area, flexible, and printable applications. In this work, polyvinylidene fluoride (PVDF) composites with conductive graphene nanoplatelets (G‐NPL) and high‐dielectric constant ceramics, including barium and strontium titanate (BT and SrT) have been developed to achieve electrically conductive and high‐dielectric response materials, respectively. Flexible composites reinforced with 45 wt.% ceramic content lead to a dielectric constant of ε´= 33 and 25 for BT and SrT, respectively, 6 and 4 times higher than for pristine PVDF. Further, the inclusion of G‐NPL allows for the development of highly conductive composites with a maximum conductivity of 5.5×10‐2 (Ω.m)‐1 for a 5 wt.% filler content, 10 orders of magnitude larger than PVDF. The G‐NPL and ceramic in optimized contents in PVDF tricomposites do not enhance the dielectric properties compared to PVDF‐ceramic composites. Theoretical analysis has been used to determine the critical percolation threshold of the PVDF/G‐NPL, which occurs at ϕc= 0.6 wt.% G‐NPL content with a critical exponent of t= 2.49, and to describe the dielectric properties of the composites, allowing to further tailor materials responses for specific application needs.This article is protected by copyright. All rights reserved.

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Novel polymer composites of RuO2@nBaTiO3/PVDF with a high dielectric constant

Cited by 12 publications

References 40 publications

Notably enhanced dielectric response with low loss in PVDF composites filled with RuO₂–BaTiO₃ hybrid particles

Notably enhanced dielectric response with low loss in PVDF composites filled with RuO₂–BaTiO₃ hybrid particles

Contributing Factors of Dielectric Properties for Polymer Matrix Composites

Tailoring the Electrical Response of Polyvinylidene Fluoride Nanocomposites with Electrically Conductive and Dielectric Fillers

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Novel polymer composites of RuO2@nBaTiO3/PVDF with a high dielectric constant

Cited by 12 publications

References 40 publications

Notably enhanced dielectric response with low loss in PVDF composites filled with RuO2–BaTiO3 hybrid particles

Notably enhanced dielectric response with low loss in PVDF composites filled with RuO2–BaTiO3 hybrid particles

Contributing Factors of Dielectric Properties for Polymer Matrix Composites

Tailoring the Electrical Response of Polyvinylidene Fluoride Nanocomposites with Electrically Conductive and Dielectric Fillers

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Product

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Notably enhanced dielectric response with low loss in PVDF composites filled with RuO₂–BaTiO₃ hybrid particles

Notably enhanced dielectric response with low loss in PVDF composites filled with RuO₂–BaTiO₃ hybrid particles