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Broadband Dielectric Characterization of Carbon Black-Reinforced Natural Rubber
Huang, Menglong Tunnicliffe, Lewis B. Liao, Shibai Yang, Bin Yan, Haixue Busfield, James J. C.
Huang, Menglong
Tunnicliffe, Lewis B.
Liao, Shibai
Yang, Bin
Yan, Haixue
Busfield, James J. C.
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2023-08-28
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Abstract
Natural rubber compounds reinforced with two different carbon blacks (N134 and N330) at various concentrations were characterized using very broadband dielectric spectroscopy from around 0.1 Hz to 0.3 THz using four different impedance and network analysis technologies. Percolation behavior was observed when the testing electrical frequency was below a certain range, which can be linked to the presence of percolated carbon black networks. When above a critical frequency level, the real part of AC conductivity or the permittivity tended to have a simple exponential relationship with the volume fraction of carbon black rather than a percolation-like behavior with the carbon black volume fraction and was no longer sensitive to carbon black networks. The AC conductivity derived via complex impedance was also strongly influenced by the choice of calculation model when the material was around or below the percolation threshold.
Citation
Huang, M., Tunnicliffe, L. B., Liao, S., Yang, B., Yan, H., & Busfield, J. J. C. (2023). Broadband dielectric characterization of carbon black-reinforced natural rubber. Rubber Chemistry and Technology, 96(4), 656–666. https://doi.org/10.5254/rct.23.76983
Publisher
Rubber Division, ACS
Journal
Rubber Chemistry and Technology
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Article
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This is a pre-copyedited, author-produced version accepted for publication in Rubber Chemistry and Technology following peer review. The version of record is available at https://meridian.allenpress.com/rct/article-abstract/doi/10.5254/rct.23.76983/495427/BROADBAND-DIELECTRIC-CHARACTERIZATION-OF-CARBON?redirectedFrom=fulltext
Series/Report no.
ISSN
0035-9475
EISSN
1943-4804