Effect of sulphur on both thermal and dielectric properties of pre-compressed FEF black-loaded SBR vulcanizates |
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Authors: | MM Badawy |
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Institution: | Physics Department, Faculty of Science, Cairo University, Giza, Egypt |
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Abstract: | The thermal properties (thermal conductivity λ, thermal diffusivity a, and specific heat Cp) as well as the dielectric constant ε′ and dielectric loss ε′ of conductive styrene butadiene rubber loaded with different concentrations of sulphur were measured. It was found that both λ and Cp increase gradually at around 1 phr of sulphur content. Meanwhile, the dielectric constant ε′, showed a pronounced peak at 2 phr of sulphur content. Moreover, the effect of hydrostatic pressure on the dielectric constant ε′ and dielectric loss ε′ was found to rise with pre-compression. |
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