Colección INTI-SNRD


Título: Electrical properties of polymer blend composites based on silicone rubber/EPDM/clay hybrid for high voltage insulators
Fuente: Journal of Composites and Compounds, 3(6)
Autor/es: Bazli, Leila; Eskandarinezhad, Sara; Kakur, Naresh; Ramachandran, Velmurugan; Bacigalupe, Alejandro; Mansilla, Marcela; Escobar, Mariano
Materias: Propiedades eléctricas; Polímeros; Siliconas; Caucho; Arcillas; Aislación eléctrica; Nanocompuestos; Monómeros; Etileno; Propileno
Editor/Edición: 2021
Licencia: https://creativecommons.org/licenses/by-nc-nd/4.0/
Afiliaciones: Bazli, Leila. Nano and Smart Polymers Center of Excellence. Iran Polymer & Petrochemical Institute; Irán
Eskandarinezhad, Sara. Yazd University. Department of Mining and Metallurgy; Irán
Kakur, Naresh. Indian Institute of Technology Madras. Department of Aerospace Engineering; India
Ramachandran, Velmurugan. Indian Institute of Technology Madras. Department of Aerospace Engineering; India
Bacigalupe, Alejandro. Instituto Nacional de Tecnología Industrial. Centro de Materiales Avanzados (INTI); Argentina
Mansilla, Marcela. Instituto Nacional de Tecnología Industrial. Centro de Materiales Avanzados (INTI); Argentina
Escobar, Mariano. Instituto Nacional de Tecnología Industrial. Centro de Materiales Avanzados (INTI); Argentina

Resumen: Silicone rubber (SR) and ethylene-propylene-diene monomer (EPDM) are widely-used polymers as housing for high voltage insulators. In this work, SR/EPDM/clay nanocomposites were obtained by two-roll mill mixing for outdoor polymeric insulators. Morphology, dielectric properties, dielectric breakdown strength (DBS), and surface and volume resistivity of different weight contents of nanoclay (Cloisite 15A) incorporated in SR, EPDM, and SR/EPDM hybrid nanocomposites were characterized. In addition, the distribution of breakdown voltages was fit to the distribution of Weibull and estimated the scale and shape parameters. The polar groups of the clay particles enhanced the polarization capability of the nanocomposites. Moreover, DBS results showed an enhancement of the dielectric strength proportional to clay content. Finally, the surface and volume resistance of all nanocomposites decreases but maintains very high electrical resistance. The experimental data presented in this study will be useful for designing and manufacturing the outdoor insulators.
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