Processability of Polymeric Composites

Ghosh, Anup K.; Dwivedi, Mayank

doi:10.1007/978-81-322-3933-8

Cited by 16 publications

(12 citation statements)

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“…About least 200 papers were surveyed to assess the present state-of-the-art. There are also a number of recent books [5][6][7][8][9] that discuss in detail various aspects of the development and applications of dielectric polymer nanocomposites. Each of the books written in the last ten years treats in detail aspects of polymer nanocomposite technology and its importance in the capacitor industry.…”

Section: A Review Of the Literature On Energy Storage Using Dielectric Materialsmentioning

confidence: 99%

Prospects for the Development of High Energy Density Dielectric Capacitors

Burke

2021

Applied Sciences

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In this paper, the design of high energy density dielectric capacitors for energy storage in vehicle, industrial, and electric utility applications have been considered in detail. The performance of these devices depends primarily on the dielectric constant and breakdown strength characteristics of the dielectric material used. A review of the literature on composite polymer materials to assess their present dielectric constants and the various approaches being pursued to increase energy density found that there are many papers in which materials having dielectric constants of 20–50 were reported, but only a few showing materials with very high dielectric constants of 500 and greater. The very high dielectric constants were usually achieved with nanoscale metallic or carbon particles embedded in a host polymer and the maximum dielectric constant occurred near the percolation threshold particle loading. In this study, an analytical method to calculate the dielectric constant of composite dielectric polymers with various types of nanoparticles embedded is presented. The method was applied using an Excel spreadsheet to calculate the characteristics of spiral wound battery cells using various composite polymers with embedded particles. The calculated energy densities were strong functions of the size of the particles and thickness of the dielectric layer in the cell. For a 1000 V cell, an energy density of 100–200 Wh/kg was calculated for 3–5 nm particles and 3–5 µ thick dielectric layers. The results of this study indicate that dielectric materials with an effective dielectric constant of 500–1000 are needed to develop dielectric capacitor cells with battery-like energy density. The breakdown strength would be 300–400 V/µ in a reverse sandwich multilayer dielectric arrangement. The leakage current of the cell would be determined from appropriate DC testing. These high energy density dielectric capacitors are very different from electrochemical capacitors that utilize conducting polymers and liquid electrolytes and are constructed much like batteries. The dielectric capacitors have a very high cell voltage and are constructed like conventional ceramic capacitors.

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Section: A Review Of the Literature On Energy Storage Using Dielectric Materialsmentioning

confidence: 99%

Prospects for the Development of High Energy Density Dielectric Capacitors

Burke

2021

Applied Sciences

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“…Functional intrinsic polymers and composites have been used with respect to piezoelectric polymer for sensing and energy harvesting or in the area of polymers reinforced with carbon black for antistatic casing goods in the industry. These smart materials have been processed with a large variety of processing methods, including solvent based and from the melt, tailoring them from thin or thick films, to porous membranes, or three dimensional objects [4].…”

Section: Outlook and Future Trendsmentioning

confidence: 99%

Functional, lightweight materials

Costa

Lanceros‐Méndez

2021

Advanced Lightweight Multifunctional Materials

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“…Composites materials are defined as materials formed from at least two different components with distinct properties, whose inherent properties are combined to make a new material 1–3 . Composites have thus distinguished themselves as a viable alternative to conventional or single‐phase materials, because of their wide range of applications such as in automotive industry, aeronautics, electro‐electronics, and biomedicine 4,5 …”

Section: Introductionmentioning

confidence: 99%

“…[1][2][3] Composites have thus distinguished themselves as a viable alternative to conventional or single-phase materials, because of their wide range of applications such as in automotive industry, aeronautics, electro-electronics, and biomedicine. 4,5 There are several types of composites that can be studied, including those formed by a polymer matrix as the first phase and organic or inorganic particles as the second phase, including carbon-based nanoparticles (carbon black (CB), graphene, carbon nanotube (CNT)), natural and synthetic fibers, ferroelectric particles like lead zirconate titanate (PZT), and barium titanate (BaTiO 3 ). [6][7][8][9][10] Due to the advent of the internet of things (IoT) and Industry 4.0, the interconnectivity required to collect and share the most diverse data requires a large number and variety of sensors.…”

Section: Introductionmentioning

confidence: 99%

Dielectric, electric, and piezoelectric properties of three‐phase piezoelectric composite based on castor‐oil polyurethane, lead zirconate titanate particles and multiwall carbon nanotubes

Filho

Santos

Sanches

et al. 2023

J of Applied Polymer Sci

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The effects of multiwall carbon nanotubes (MWCNTs) on the electrical, dielectric, and piezoelectric properties of the ferroelectric ceramic/castor-oil polyurethane (PUR) composite films were evaluated. The three-phase piezoelectric composites were produced by keeping PUR concentration constant while varying lead zirconate titanate (PZT) volume fractions between 10 and 50 vol.%, at two MWCNT concentrations: above and below percolation threshold. The dc electrical conductivity analysis revealed that small amounts of MWCNTs dispersed within PUR/PZT composite films can significantly improve electrical and piezoelectric properties due to their ability to act as conductive bridges between PZT particles in the samples. Using Jonscher's power law, it was possible to determine that the electrical conduction in ac regime occurs through spatial charge hopping between states located within the piezoelectric composite. Analyzing the piezoelectric properties through the d 33 coefficient, it was found that PUR-MWCNT/PZT piezoelectric composite displayed higher d 33 values (20 pC/N) in comparison to the PUR/PZT two-phase composite (9.5 pC/N) for all PZT loadings. According to these results, the dispersion of MWCNT nanoparticles influences the poling effectiveness of the PZT particles and increases the d 33 coefficient of three-phase piezoelectric composites.

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Processability of Polymeric Composites

Cited by 16 publications

References 0 publications

Prospects for the Development of High Energy Density Dielectric Capacitors

Prospects for the Development of High Energy Density Dielectric Capacitors

Functional, lightweight materials

Dielectric, electric, and piezoelectric properties of three‐phase piezoelectric composite based on castor‐oil polyurethane, lead zirconate titanate particles and multiwall carbon nanotubes

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