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Author(s): |
Xu-huang Chen, School of Chemical and Environmental Engineering, Hubei University of Technology, Wuhan, China
Peng Yu, School of Chemical and Environmental Engineering, Hubei University of Technology, Wuhan, China
Bi-wei Huang, School of Chemical and Environmental Engineering, Hubei University of Technology, Wuhan, China
Chun-qing Li, School of Chemical and Environmental Engineering, Hubei University of Technology, Wuhan, China
Rong Zhang, School of Chemical and Environmental Engineering, Hubei University of Technology, Wuhan, China |
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Abstract: |
Metallocene ethylene-propylene elastomer/conductive carbon black (mEP/CB) composites were prepared by conventional melting and mixing method. The influence of the content of titanate coupling agent and CB on the conductivity and mechanical properties were studied. Results reveal that the best dosage of titanate which was used to deal with the surface of carbon black was 3% of quality of CB, and it could improve the dispersion of CB in the composite effectively and stable conductive network, when the amount of CB was more then 4%, the resistivity increased instead; Both tensile strength and maximum elongation with the CB content was first increased and then decreased; The conductive percolation threshold of the composites was about 8%, when the content of CB was lower, the electronic conductivity was the tunnel effect, and resistivity is very high; when it was higher, resistivity becames very small for the ohmic conductivity and tends to moderate resistance.
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