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Fire behavior of polyamide 12 nanocomposites containing POSS and CNT

Articolo
Data di Pubblicazione:
2016
Abstract:
Nanocomposites of polyamide 12 with multiwall carbon nanotubes (CNT) and octaisobutyl polyhedral oligomeric silsesquioxanes (POSS) were studied to assess their flame retardancy properties. The fire behaviour was investigated with a cone calorimeter using 50kW/m2 heat fluxes, by means of the oxygen index and the UL 94 H classification. The fire residue was characterized using FT-IR and SEM. The best overall performance was observed for the composites containing 3.3 wt% of POSS and 4 wt% of CNT. This composite achieved HB in UL 94, an oxygen index of 27 and a 74% reduction in the peak heat release rate. A synergistic effect was evidenced using POSS and CNT together whereas FT-IR and SEM analysis of the residue from fire experiments confirms the formation of SiO2 shield on the surface of the burning sample.
Tipologia CRIS:
03A-Articolo su Rivista
Keywords:
Carbon nanotubes, Polyhedral Oligomeric Silsesquioxanes, Flame retardancy, Cone Calorimeter, Nylon 12
Elenco autori:
Gentiluomo, Silvia; Veca, Antonino Domenico; Monti, Marco; Zaccone, Marta; Zanetti, Marco
Autori di Ateneo:
ZANETTI Marco
Link alla scheda completa:
https://iris.unito.it/handle/2318/1602331
Link al Full Text:
https://iris.unito.it/retrieve/handle/2318/1602331/237895/Postprint%20(AAM)%20-%20Zanetti_PDS_NylonFR.pdf
Pubblicato in:
POLYMER DEGRADATION AND STABILITY
Journal
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URL

http://www.sciencedirect.com/science/article/pii/S0141391016303214
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