Exploration of dielectric spectra of variously synthesized epoxy/ZnO nanocomposites
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Mihir N. Velani
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Ritesh R. Patel
Abstract
Polymeric epoxy-based nanocomposites have rapidly developed in high energy density and power industry components. The composite insulation undergoes harsh extreme temperature conditions and a high electric field with varying frequencies. This paper dissects the components of complex permittivity in epoxy/ZnO nano and micro composites that were synthesized using different methods, utilizing dielectric spectroscopy as per ASTM D150. The performance of the composites was studied by analyzing the spectra over a frequency range spanning from 1 mHz to 1 kHz. We presume interfacial polarization arises in the composites due to particle clustering. Furthermore, we evaluated the effect of varying filler concentration at 25, 50, 70, and 90 °C. The real permittivity positions the α-steps at 70 and 90 °C. The real and imaginary permittivities remain largely unpretentious by the synthesis method over the entire frequency range.
Funding source: Government of Gujarat’s Students Startup and Innovation Policy (SSIP)
Award Identifier / Grant number: SSIP/SOE/092020/003
Acknowledgments
The authors are grateful to Saurashtra University’s Department of Pharmaceutical Sciences for enabling us to work with the ultrasonic probe sonicator. We extend our thanks the High Voltage Laboratory, IITK, and Mr. Amrendra Kumar, Ph.D. scholar, Department of Electrical Engineering, IITK, for helping us to carry out the Broadband Dielectric Spectroscopy facility.
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Author contributions: All the authors have accepted responsibility for the entire content of this submitted manuscript and approved submission.
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Research funding: The authors are grateful to the Government of Gujarat’s Students Startup and Innovation Policy (SSIP), which granted part funding for this project (SSIP/SOE/092020/003).
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Conflict of interest statement: The authors declare no conflicts of interest regarding this article.
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© 2023 Walter de Gruyter GmbH, Berlin/Boston
Artikel in diesem Heft
- Frontmatter
- Material Properties
- The degradation behaviors of optical cellulose triacetate films in alkali/acid solutions
- Exploration of dielectric spectra of variously synthesized epoxy/ZnO nanocomposites
- Preparation and Assembly
- Preparation and evaluation of polyvinyl alcohol hydrogels with zinc oxide nanoparticles as a drug controlled release agent for a hydrophilic drug
- PVA-borax/g-C3N4 nanocomposite hydrogel with excellent mechanical property and self-healing efficiency
- Fabrication and characterization of microencapsulated dimethyl adipate phase change material with melamine-formaldehyde shell for cold thermal energy storage in coating
- Preparation and performance of “three-layer sandwich” composite loose nanofiltration membrane based on mussel bionic technology
- Engineering and Processing
- Electrospinning and electrospun based polyvinyl alcohol nanofibers utilized as filters and sensors in the real world
- Synergistic effect of GMA and TMPTA as co-agent to adjust the branching structure of PLLA during UV-induced reactive extrusion
Artikel in diesem Heft
- Frontmatter
- Material Properties
- The degradation behaviors of optical cellulose triacetate films in alkali/acid solutions
- Exploration of dielectric spectra of variously synthesized epoxy/ZnO nanocomposites
- Preparation and Assembly
- Preparation and evaluation of polyvinyl alcohol hydrogels with zinc oxide nanoparticles as a drug controlled release agent for a hydrophilic drug
- PVA-borax/g-C3N4 nanocomposite hydrogel with excellent mechanical property and self-healing efficiency
- Fabrication and characterization of microencapsulated dimethyl adipate phase change material with melamine-formaldehyde shell for cold thermal energy storage in coating
- Preparation and performance of “three-layer sandwich” composite loose nanofiltration membrane based on mussel bionic technology
- Engineering and Processing
- Electrospinning and electrospun based polyvinyl alcohol nanofibers utilized as filters and sensors in the real world
- Synergistic effect of GMA and TMPTA as co-agent to adjust the branching structure of PLLA during UV-induced reactive extrusion
