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Polímeros

versão impressa ISSN 0104-1428versão On-line ISSN 1678-5169

Resumo

SIMOES, Fabio R.; BULHOES, Luís O. S.  e  PEREIRA, Ernesto C.. Synthesis and characterization of conducting composites of polyaniline and carbon black with high thermal stability. Polímeros [online]. 2009, vol.19, n.1, pp.54-57. ISSN 1678-5169.  https://doi.org/10.1590/S0104-14282009000100013.

In this work, a detailed chemical route to prepare thermally stable polyaniline (PANI)/carbon black (CB) composites is described. The syntheses were performed by chemical polymerization of aniline over CB particles, using different PANI/CB mass ratios. The thermal and electrical properties were characterized. Composites with mass ratio up to 65:35 (PANI:CB) showed excellent thermal stability maintaining their conducting properties when thermally treated at 230 °C for two hours, which is adequate to process these materials. Moreover, the results showed an important reduction in the surface area of the composites which have a good relationship with the improvement of the rheological properties in melt processing.

Palavras-chave : Composite materials; electrical properties; conducting polymers; thermal properties.

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