Synthesis and characterization of conducting composites of polyaniline and carbon black with high thermal stability
| Autor: | Fabio R. Simões, Luís O. S. Bulhões, Ernesto C. Pereira |
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| Jazyk: | English<br />Portuguese |
| Rok vydání: | 2009 |
| Předmět: | |
| Zdroj: | Polímeros, Vol 19, Iss 1, Pp 54-57 (2009) |
| Druh dokumentu: | article |
| ISSN: | 0104-1428 1678-5169 |
| DOI: | 10.1590/S0104-14282009000100013 |
| Popis: | 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. |
| Databáze: | Directory of Open Access Journals |
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