Polímeros: Ciência e Tecnologia
https://revistapolimeros.org.br/article/doi/10.1590/S0104-14282009000100013
Polímeros: Ciência e Tecnologia
Scientific & Technical Article

Synthesis and Characterization of Conducting Composites of Polyaniline and Carbon Black with High Thermal Stability

Pereira, Ernesto C.; Bulhões, Luís O. S.; Simões, Fabio R.

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Abstract

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.

Keywords

Composite materials, electrical properties, conducting polymers, thermal properties

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