Dielectric analysis (DEA) of molded ground waste rubber tire (GRT) and its chlorinated derivatives (Cl‐GRT) was undertaken. Dielectric spectra of Cl‐GRT show formation of a biphasic structure consisting of the rubbery phase and a hard phase whose relaxation occurs in the high‐temperature region. DEA of plasticized poly(vinyl chloride) (PVC) containing GRT and PVC containing Cl‐GRT was also undertaken. It is observed that PVC containing Cl‐GRT exhibits a higher loss factor in the high‐temperature region than does the PVC compound containing GRT, due to enhanced interaction between Cl‐GRT and PVC. While the activation energy for dielectric relaxation of PVC does not change when compounded with GRT, it does decrease when PVC is compounded with Cl‐GRT due to dipolar interaction.
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Naskar et al. (2002) studied this question.
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