Electric Field Assisted Transport of the Crosslinking Byproducts in Low-Density Polyethylene

H. Hamedi, R. C. Walker, R. Rajagopalan, E. Furman, M. Lanagan, W. H.Hunter Woodward

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

Abstract

The intrinsic diffusion of the acetophenone in low density polyethylene (LDPE) is characterized with infrared mapping and it is found to be nearly Fickean with decaying diffusion coefficient over time. The impact of temperature on the diffusion coefficient is examined and an Arrhenius relationship is derived for the temperature dependence. To study the influence of electric field on the acetophenone diffusion, field-test cells were designed and constructed. The infrared mapping revealed presence of a gradient in the acetophenone concentration. Using the COMSOL simulation, we observed the higher acetophenone concentration near high electric field gradient regions. This is attributed to the dielectrophoresis phenomenon that occurs due to higher permittivity of the acetophenone molecules compared to the surrounding medium. The findings of this study help to understand where the byproducts migrate in high voltage power cables.

Original languageEnglish (US)
Title of host publication2019 IEEE Conference on Electrical Insulation and Dielectric Phenomena, CEIDP 2019 - Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages430-433
Number of pages4
ISBN (Electronic)9781728131214
DOIs
StatePublished - Oct 2019
Event2019 IEEE Conference on Electrical Insulation and Dielectric Phenomena, CEIDP 2019 - Richland, United States
Duration: Oct 20 2019Oct 23 2019

Publication series

NameAnnual Report - Conference on Electrical Insulation and Dielectric Phenomena, CEIDP
Volume2019-October
ISSN (Print)0084-9162

Conference

Conference2019 IEEE Conference on Electrical Insulation and Dielectric Phenomena, CEIDP 2019
CountryUnited States
CityRichland
Period10/20/1910/23/19

All Science Journal Classification (ASJC) codes

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

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    Hamedi, H., Walker, R. C., Rajagopalan, R., Furman, E., Lanagan, M., & Woodward, W. H. H. (2019). Electric Field Assisted Transport of the Crosslinking Byproducts in Low-Density Polyethylene. In 2019 IEEE Conference on Electrical Insulation and Dielectric Phenomena, CEIDP 2019 - Proceedings (pp. 430-433). [9009729] (Annual Report - Conference on Electrical Insulation and Dielectric Phenomena, CEIDP; Vol. 2019-October). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/CEIDP47102.2019.9009729