Resumo

ZANIN, Maria  e  GIACOMETTI, José A. Electrical and physical characterization of composites of vulcanized EPDM copolymer and aluminium trihydroxide. Polímeros [online]. 1997, vol.7, n.2, pp.30-39. ISSN 0104-1428.  https://doi.org/10.1590/S0104-14281997000200005.

In this work, electrical and physical properties of vulcanized copolymer EPDM-ENB reinforced with alumina trihydrate, ATH, were investigated. Characteristics of the vulcanizating process, tear resistence, tensile strenght at break are given for different contents of ATH. The dependence of the electric conduction on the applied voltage were measured for the composites. A linear dependence of the logarithm of electric conductivity on the square root of the applied electric field was found. Such results were discussed employing Poole-Frenkel and Schottky theoretical models.

Palavras-chave : Electrical conductivity; composite; ethylene propylene diene; alumina thrihydrate; conduction mechanism; physical properties.

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