Thermal/Electrical Properties and Texture of Carbon Black PC Polymer Composites near the Electrical Percolation Threshold
| Autor: | Domenica Scarano, Beatrice Gaia Rossatto, Federico Cesano, Chiara Mastropasqua, Valentina Giovanna Brunella |
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| Rok vydání: | 2021 |
| Předmět: |
Technology
Materials science carbon black polymer composites Science thermal and electrical properties Carbon black Differential scanning calorimetry Electrical conductivity Polycarbonate Polymer composites Scanning electron microscopy Thermal and electrical properties Thermogravimetric analysis Composite material Thermal analysis Engineering (miscellaneous) thermogravimetric analysis chemistry.chemical_classification polycarbonate differential scanning calorimetry scanning electron microscopy electrical conductivity Percolation threshold Polymer Thermogravimetry chemistry visual_art Ceramics and Composites visual_art.visual_art_medium Glass transition |
| Zdroj: | Journal of Composites Science, Vol 5, Iss 212, p 212 (2021) Journal of Composites Science; Volume 5; Issue 8; Pages: 212 |
| ISSN: | 2504-477X |
| DOI: | 10.3390/jcs5080212 |
| Popis: | Polycarbonate (PC), a thermoplastic polymer with excellent properties, is used in many advanced technological applications. When PC is blended with other polymers or additives, new properties, such as electrical properties, can be available. In this study, carbon black (CB) was melt-compounded with PC to produce polymer compounds with compositions (10–16 wt.% of CB), which are close to or above the electrical percolation threshold (13.5–14 wt.% of CB). Effects due to nanofiller dispersion/aggregation in the polymer matrix, together with phase composition, glass transition temperature, morphology and textural properties, were studied by using thermal analysis methods (thermogravimetry and differential scanning calorimetry) and scanning electron microscopy. The DC electrical properties of these materials were also investigated by means of electrical conductivity measurements and correlated with the “structure” of the CB, to better explain the behaviour of the composites close to the percolation threshold. |
| Databáze: | OpenAIRE |
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