TY - GEN
T1 - Deformation-Induced Structural Changes of Carbon Black Fillers in Rubbers Investigated by Terahertz Polarization Spectroscopy
AU - Mizuta, K.
AU - Okano, M.
AU - Morimoto, T.
AU - Ata, S.
AU - Watanabe, S.
N1 - Funding Information:
ACKNOWLEDGEMENT This work was partially supported by Grants JP18H02040 and JP18H01190.
Publisher Copyright:
© 2021 IEEE
PY - 2021
Y1 - 2021
N2 - 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.
AB - 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.
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U2 - 10.1109/IRMMW-THz50926.2021.9567138
DO - 10.1109/IRMMW-THz50926.2021.9567138
M3 - Conference contribution
AN - SCOPUS:85125336166
T3 - International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz
BT - 2021 46th International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz 2021
PB - IEEE Computer Society
T2 - 46th International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz 2021
Y2 - 30 August 2021 through 3 September 2021
ER -