Abstract
Epoxy/fumed and precipitated silica and alumina nanocomposites were evaluated on their dielectric properties and partial discharge (PD) resistance. Dielectric properties, i.e., permittivity and dissipation factor tanδ were measured in the frequency range from 20 Hz to 1 MHz. PD resistance was assessed using a rod-to-plane electrode with an air gap 0.2 mm under 4 kV <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">rms</sub> . A new discovery was made for moisture and chemical residue effects for the dielectric properties. Natural moisture would not affect much permanent dielectric properties. It was elucidated that nano filler addition would enhance PD resistance, as expected. Furthermore, it was found that epoxy/silica nanocomposite is better in PD resistance than epoxy/alumina nanocomposite. Filler preparation methods, i.e., fumed and precipitated, might influence both properties.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
