Deformation-Induced Structural Changes of Carbon Black Fillers in Rubbers Investigated by Terahertz Polarization Spectroscopy

K. Mizuta, M. Okano, T. Morimoto, S. Ata, S. Watanabe

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

Abstract

We investigated the polarization-dependent terahertz optical conductivity of rubber compounds with carbon black (CB) fillers under cyclic deformation to detect deformation-induced changes of the internal CB structure in a contactless manner. It is clearly observed that the conductivity during the unloading is reduced from that during the loading at the same draw ratios. To interpret this hysteresis of the conductivity, we perform theoretical calculation based on the effective medium theory. Comparing with the calculation, we attribute the hysteresis of the conductivity to the reduction of the anisotropy of the CB aggregates, which might result from the deformation-induced rupture of them.

Original languageEnglish
Title of host publication2021 46th International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz 2021
PublisherIEEE Computer Society
ISBN (Electronic)9781728194240
DOIs
Publication statusPublished - 2021
Event46th International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz 2021 - Chengdu, China
Duration: 2021 Aug 302021 Sep 3

Publication series

NameInternational Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz
Volume2021-August
ISSN (Print)2162-2027
ISSN (Electronic)2162-2035

Conference

Conference46th International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz 2021
Country/TerritoryChina
CityChengdu
Period21/8/3021/9/3

ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering

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