Thermal/Electrical Properties and Texture of Carbon Black PC Polymer Composites near the Electrical Percolation Threshold
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...
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doaj-e198be4afbe04dcb9ae7a99fd04390b52021-08-26T13:56:21ZengMDPI AGJournal of Composites Science2504-477X2021-08-01521221210.3390/jcs5080212Thermal/Electrical Properties and Texture of Carbon Black PC Polymer Composites near the Electrical Percolation ThresholdValentina Brunella0Beatrice Gaia Rossatto1Chiara Mastropasqua2Federico Cesano3Domenica Scarano4Department of Chemistry and NIS (Nanostructured Interfaces and Surfaces) Interdepartmental Centre, University of Torino, Via P. Giuria 7, 10125 Torino, ItalyDepartment of Chemistry and NIS (Nanostructured Interfaces and Surfaces) Interdepartmental Centre, University of Torino, Via P. Giuria 7, 10125 Torino, ItalyDepartment of Chemistry and NIS (Nanostructured Interfaces and Surfaces) Interdepartmental Centre, University of Torino, Via P. Giuria 7, 10125 Torino, ItalyDepartment of Chemistry and NIS (Nanostructured Interfaces and Surfaces) Interdepartmental Centre, University of Torino, Via P. Giuria 7, 10125 Torino, ItalyDepartment of Chemistry and NIS (Nanostructured Interfaces and Surfaces) Interdepartmental Centre, University of Torino, Via P. Giuria 7, 10125 Torino, ItalyPolycarbonate (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 “<i>structure</i>” of the CB, to better explain the behaviour of the composites close to the percolation threshold.https://www.mdpi.com/2504-477X/5/8/212polymer compositespolycarbonatecarbon blackthermal and electrical propertiesthermogravimetric analysisdifferential scanning calorimetry |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Valentina Brunella Beatrice Gaia Rossatto Chiara Mastropasqua Federico Cesano Domenica Scarano |
spellingShingle |
Valentina Brunella Beatrice Gaia Rossatto Chiara Mastropasqua Federico Cesano Domenica Scarano Thermal/Electrical Properties and Texture of Carbon Black PC Polymer Composites near the Electrical Percolation Threshold Journal of Composites Science polymer composites polycarbonate carbon black thermal and electrical properties thermogravimetric analysis differential scanning calorimetry |
author_facet |
Valentina Brunella Beatrice Gaia Rossatto Chiara Mastropasqua Federico Cesano Domenica Scarano |
author_sort |
Valentina Brunella |
title |
Thermal/Electrical Properties and Texture of Carbon Black PC Polymer Composites near the Electrical Percolation Threshold |
title_short |
Thermal/Electrical Properties and Texture of Carbon Black PC Polymer Composites near the Electrical Percolation Threshold |
title_full |
Thermal/Electrical Properties and Texture of Carbon Black PC Polymer Composites near the Electrical Percolation Threshold |
title_fullStr |
Thermal/Electrical Properties and Texture of Carbon Black PC Polymer Composites near the Electrical Percolation Threshold |
title_full_unstemmed |
Thermal/Electrical Properties and Texture of Carbon Black PC Polymer Composites near the Electrical Percolation Threshold |
title_sort |
thermal/electrical properties and texture of carbon black pc polymer composites near the electrical percolation threshold |
publisher |
MDPI AG |
series |
Journal of Composites Science |
issn |
2504-477X |
publishDate |
2021-08-01 |
description |
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 “<i>structure</i>” of the CB, to better explain the behaviour of the composites close to the percolation threshold. |
topic |
polymer composites polycarbonate carbon black thermal and electrical properties thermogravimetric analysis differential scanning calorimetry |
url |
https://www.mdpi.com/2504-477X/5/8/212 |
work_keys_str_mv |
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