Thermal/electrical properties and texture of carbon black pc polymer composites near the electrical percolation threshold
Articolo
Data di Pubblicazione:
2021
Abstract:
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.
Tipologia CRIS:
03A-Articolo su Rivista
Keywords:
Carbon black; Differential scanning calorimetry; Electrical conductivity; Polycarbonate; Polymer composites; Scanning electron microscopy; Thermal and electrical properties; Thermogravimetric analysis
Elenco autori:
Brunella V.; Rossatto B.G.; Mastropasqua C.; Cesano F.; Scarano D.
Link alla scheda completa:
Link al Full Text:
Pubblicato in: