Dielectric properties of Epoxy-Al composites for embedded capacitor applications

Samanta, Buddhadev; Kumar, P. R.; Nanda, Dipika; Sahu, Rajesh Kumar

doi:10.1016/j.rinp.2019.102384

Cited by 16 publications

(17 citation statements)

References 26 publications

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“…Correlations between crystal structure and dielectric properties of metal oxides were reported [55]. Metal and carbon-based filler could be acting as charge centers and increasing segmental mobility in the polymer matrix, which would enhance the dielectric constant of composites [56,57]. Oxides are suggested as promising materials in high dielectric materials, as they possess both high dielectric constants and large band gaps [55].…”

Section: Dielectric Propertiesmentioning

confidence: 99%

Green Natural Rubber Composites Reinforced with Black/White Rice Husk Ashes: Effects of Reinforcing Agent on Film’s Mechanical and Dielectric Properties

Sintharm

Phisalaphong

2021

Polymers

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Green natural rubber (NR) composites reinforced with black rice husk ash (BRHA)/white rice husk ash (WRHA), using alginate as a thickening and dispersing agent and crosslinking by CaCl2, was developed to improve mechanical, chemical and dielectric properties of NR-based films by using a latex aqueous microdispersion process. A maximum of 100 per hundred rubbers (phr) of rice husk ashes (RHAs) could be integrated in NR matrix without phase separation. Mechanical properties of the composite films were considerably enhanced, compared to the neat NR film. The composite films reinforced with WRHA demonstrated relatively better mechanical properties than those reinforced with BRHA, whereas the composites filled with BRHA demonstrated higher elongation at break. The crosslinking by CaCl2 improved the film tensile strength but lowered the film elasticity. The reinforcement strongly improved chemical resistance of the composite films in toluene. The films are biodegradable in soil, with weight loss of 7.6–18.3% of the initial dry weight after 3 months. Dielectric constant and dielectric loss factors of the composite films were enhanced with RHAs loading. According to the obtained properties, the composites offer potential for further development as stretchable conductive substrate or semiconducting polymer films for electronic applications.

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Section: Dielectric Propertiesmentioning

confidence: 99%

Green Natural Rubber Composites Reinforced with Black/White Rice Husk Ashes: Effects of Reinforcing Agent on Film’s Mechanical and Dielectric Properties

Sintharm

Phisalaphong

2021

Polymers

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“…Some empirical approaches were used to estimate the effective dielectric constant of the polymer nanocomposites. The models were consolidated in the present study based on an approximation of the mean field of effective permittivity of the nanocomposite materials [27][28][29][30][31].…”

Section: Empirical Modelsmentioning

confidence: 99%

Study on low-frequency dielectric behavior of the carbon black/polymer nanocomposite

Hiremath

Mathias

Sondar

et al. 2021

J Mater Sci: Mater Electron

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Recently, polymer-based dielectric materials have become one of the key materials to play an essential role in clean energy production, energy transformation, and energy storage applications. The end usage is the energy storage capability because it is a trade-off between dielectric permittivity, dielectric loss, and dissipation factor. Hence, it is of prime importance to study the dielectric properties of polymer materials by adding filler material at a low-frequency range. In the present study, polydimethylsiloxane/carbon black nanocomposites are prepared using the solution cast method. The dielectric properties, such as dielectric constant, dielectric loss, and dissipation factors due to the concentration of filler particles and low-frequency effect on the nanocomposites, are examined. Also, different empirical models are used to estimate the dielectric permittivity of polymer nanocomposites. The low-frequency range of 100 Hz to 1 MHz and the effect of varying volume fractions of carbon black show a significant change in the dielectric properties. It is found that the nanocomposites have a higher dielectric permittivity than the base polymer material. It is also observed that an increase in filler concentration increases the dielectric permittivity, which is confirmed with an empirical model.

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“…Dielectric materials with high dielectric coefficient are frequently utilised as capacitor dielectric materials in a ceramic field [62][63][64]; while dielectric materials having relatively low permittivity are utilised as microwave dielectric materials [65][66][67]. The continuous reduction of dielectric constant against the increase in frequency is relatively common for all-dielectric substances [55,[68][69][70]. Fig.…”

Section: Gaseous Dielectricsmentioning

confidence: 99%

“…Dielectric materials are widely used in areas like capacitor and transformer [49]. Samanta et al [69] reported the application of epoxy-Al composite for an embedded capacitor. From their study, it was observed that dielectric constant increased with increase in filler content, which is due to interfacial polarisation increase and filler cluster formation.…”

Section: Gaseous Dielectricsmentioning

confidence: 99%

Application of nanoparticles and composite materials for energy generation and storage

Ibrahim

Jamiru

Sadiku

et al. 2019

IET Nanodielectrics

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Transition to renewable and sustainable energy from fossil fuels (natural gas, coal, and oil) has dominated the research cycle. The shift is as a result of increasing population growth, industrialisation, decreasing oil reserves and hazardous environmental impact of energy generation from fossil fuels. The new methods of energy generation demand functional materials that are smart and strong for generation and storage of energy. Polymeric composite materials have been widely used. With the recent material performance demand, there is a need to improve the properties of the composite. The improvement can be achieved by reinforcing with fibres and/or nanoparticles as the matrix alone does not possess the required properties. The influence of incorporating fibres and/or fillers into the polymeric matrix has been largely reported in many studies. Recent advancement in the development and use of polymeric composites and nanocomposites is discussed for energy applications. The discussion includes material property improvements, processing methods and improving interface adhesion that may arise when compounding the materials. Various areas, in the energy sector where these materials, can be used are equally highlighted.

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Dielectric properties of Epoxy-Al composites for embedded capacitor applications

Cited by 16 publications

References 26 publications

Green Natural Rubber Composites Reinforced with Black/White Rice Husk Ashes: Effects of Reinforcing Agent on Film’s Mechanical and Dielectric Properties

Green Natural Rubber Composites Reinforced with Black/White Rice Husk Ashes: Effects of Reinforcing Agent on Film’s Mechanical and Dielectric Properties

Study on low-frequency dielectric behavior of the carbon black/polymer nanocomposite

Application of nanoparticles and composite materials for energy generation and storage

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