Doped dielectric polymers with low dielectric constant nanofillers

Tian Zhang, Yash Thakur, Qiming Zhang

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

Abstract

Nanoparticles, through interfacial effects, can markedly influence material properties of the matrix. Here we report the finding of a significantly enhanced dielectric response in dipolar polymers such as polytherimide (PEI) by doping with very low volume content nanoparticles. The presence of nanoparticles reduces the constraints on the dipole response to the applied electric field in the interfacial region, thus enhancing the dielectric constant. The finding eliminates the practical constraint of the traditional dielectric nanocomposites, where in order to raise the dielectric constant, inorganic particles with much higher dielectric constants are added to the polymer matrix, causing high local electric fields in the polymer and resulting in a large reduction of the electric breakdown strength. Our results demonstrate that through nanostructure engineering, the dielectric constant of polymers can be enhanced markedly without using high dielectric constant nanoparticles, thereby not compromising on breakdown strength.

Original languageEnglish (US)
Title of host publicationCEIDP 2017 - IEEE Conference on Electrical Insulation and Dielectric Phenomenon
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages437-440
Number of pages4
Volume2017-October
ISBN (Electronic)9781538611944
DOIs
Publication statusPublished - Jan 12 2018
Event2017 IEEE Conference on Electrical Insulation and Dielectric Phenomenon, CEIDP 2017 - Texas, United States
Duration: Oct 22 2017Oct 25 2017

Other

Other2017 IEEE Conference on Electrical Insulation and Dielectric Phenomenon, CEIDP 2017
CountryUnited States
CityTexas
Period10/22/1710/25/17

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All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Electrical and Electronic Engineering

Cite this

Zhang, T., Thakur, Y., & Zhang, Q. (2018). Doped dielectric polymers with low dielectric constant nanofillers. In CEIDP 2017 - IEEE Conference on Electrical Insulation and Dielectric Phenomenon (Vol. 2017-October, pp. 437-440). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/CEIDP.2017.8257447