Structural, Electrical and Thermal Properties of Composites Based on Conducting Polymer
| Autor: | Mohamed El Hasnaoui, Najoia Aribou |
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| Rok vydání: | 2020 |
| Předmět: | |
| Zdroj: | Jordan Journal of Physics. 13:157-163 |
| ISSN: | 1994-7615 1994-7607 |
| DOI: | 10.47011/13.2.7 |
| Popis: | In this work, we report the structural, thermal and electrical properties of composites consisting of polypyrrole particles in a polymethylmethacrylate matrix. Electrical resistivity analysis of these percolating composites showed a remarkable change in the conduction mechanisms below and above the percolation threshold. Structural properties were studied using X-ray diffraction, showing increases in the crystallinity index for filler concentrations above the critical percolation. Thermogravimetric analysis was used to study thermal degradation. It shows a transition from a single peak for concentrations below the percolation threshold to a double peak for concentrations above that point. The increase in the degradation temperature with the concentration of polypyrrole indicates the increase of thermal stability. Keywords: Conducting polymer, Percolation threshold, Crystallinity, Thermal degradation, X-Ray diffraction. |
| Databáze: | OpenAIRE |
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