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Investigation of surface modifications in ethylene propylene diene monomer (EPDM) rubber due to tracking under a.c. and d.c. voltages

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Abstract

In the present work, tracking phenomena has been studied with the ethylene propylene diene monomer (EPDM) material under the a.c. and d.c. voltages, with ammonium chloride/acid rain solution as the contaminant. It is noticed that the tracking time depends on the conductivity and flow rate of the contaminant. The physico-chemical analyses viz. wide angle X-ray diffraction (WAXD), thermo-gravimetric differential thermal analysis (TG-DTA) and the differential scanning calorimetry (DSC) studies, were carried out and it was concluded that the tracking process is a surface degradation process. The tracking time is different for a.c. and d.c. voltages.

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Authors and Affiliations

  1. Department of Electrical Engineering, Indian Institute of Technology, 600 036, Chennai, India

    R. Sarathi & Uma Maheswar Rao

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  1. R. Sarathi
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  2. Uma Maheswar Rao
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Sarathi, R., Rao, U.M. Investigation of surface modifications in ethylene propylene diene monomer (EPDM) rubber due to tracking under a.c. and d.c. voltages. Bull Mater Sci 24, 587–593 (2001). https://doi.org/10.1007/BF02704006

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  • DOI: https://doi.org/10.1007/BF02704006

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