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Título

Effect of Cu-doped graphene on the flammability and thermal properties of epoxy composites

AutorLiu, Yun; Babu, Heeralal Vignesh; Zhao, Jianqing; Goñi-Urtiaga, Asier; Sainz, Raquel; Ferritto, Rafael; Pita, Marcos ; Wang, De-Yi
Palabras claveA. Polymer–matrix composites (PMCs)
A. Hybrid
B. Thermal properties
E. Thermosetting resin
Flammability
Fecha de publicación15-mar-2016
EditorElsevier
CitaciónComposites Part B: Engineering 89: 108-116 (2016)
ResumenCu-doped graphene (graphenit-Cu) was successfully prepared through chemical reduction method, and its surface morphology, crystalline structure and Cu content in graphenit-Cu were characterized by scanning electron microscopy (SEM), X-ray diffraction (XRD), inductive couple plasma (ICP) and electrochemical cyclic voltammetry, respectively. Graphenit-ox/epoxy systems and graphenit-Cu/epoxy systems were prepared, and the contents of graphenit-ox and graphenit-Cu were kept as 1 and 3 wt%, respectively. The effect of graphenit-ox or graphenit-Cu on the flame retardancy, combustion properties, thermal degradation and thermomechanical properties of epoxy resin was investigated systematically by limiting oxygen index (LOI), cone calorimeter (Cone), thermogravimetric analysis (TGA) and dynamic mechanical analysis (DMA). Compared to graphenit-ox, the addition of graphenit-Cu reduced the heat release rate (HRR), total smoke production (TSP) and smoke production rate (SPR), and improved LOI values of epoxy composites. Moreover, the addition of graphenit-ox also had little flame retardant effect on epoxy composite. The possible synergistic effect between graphene and Cu was confirmed in the flame retardant epoxy composites. TGA and DMA results also indicated the considerable effect on the thermal degradation and thermomechanical properties of epoxy composites with the addition of graphenit-Cu. The results supplied an effective solution for developing excellent flame retardant epoxy composites.
Versión del editorhttps://doi.org/10.1016/j.compositesb.2015.11.035
URIhttp://hdl.handle.net/10261/163746
DOI10.1016/j.compositesb.2015.11.035
ISSN1359-8368
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