Research on Electrical Properties of Surface-Modified Nano-SiO2/Epoxy Composites

Zongliang Xie, He Li, Siyu Zhang, Ao Gong, Peng Liu, Zongren Peng, Qing Wang

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

In order to improve the compatibility of organic-inorganic phases to obtain enhanced multi-physical properties in the polymer nanocomposites, surface functionalization of inorganic fillers is of great significance and has been widely employed in hybrid composite approaches. This work describes a comparative study on the effect of varied surface chemistries of nano-SiO on the electrical properties of epoxy resin nanocomposites. It is found that the electrical properties, including DC volume resistivity and dielectric breakdown strength of the nanocomposites with epoxy chain-grafted SiO are simultaneously improved in comparison with those of the neat epoxy resin as well as the composites with unmodified SiO and silane coupling agent-modified SiO. The surface-grafted epoxy chain, which has the same chemical structures with resin matrix, not only boosts the filler dispersion but also provides the active groups for the establishment of the robust bonds during the curing processes of thermoset resin composites. These results verify the structural design of organic-inorganic interface with covalent bonds is effective to enhance the electrical properties, and has general applicability and reference value for developing high-performance thermoset resin-based composites.

Original languageEnglish (US)
Title of host publication7th IEEE International Conference on High Voltage Engineering and Application, ICHVE 2020 - Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781728155111
DOIs
StatePublished - Sep 6 2020
Event7th IEEE International Conference on High Voltage Engineering and Application, ICHVE 2020 - Beijing, China
Duration: Sep 6 2020Sep 10 2020

Publication series

Name7th IEEE International Conference on High Voltage Engineering and Application, ICHVE 2020 - Proceedings

Conference

Conference7th IEEE International Conference on High Voltage Engineering and Application, ICHVE 2020
CountryChina
CityBeijing
Period9/6/209/10/20

All Science Journal Classification (ASJC) codes

  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering
  • Mechanics of Materials
  • Safety, Risk, Reliability and Quality
  • Electronic, Optical and Magnetic Materials

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