2024-03-29T12:57:19Zhttp://digital.csic.es/dspace-oai/requestoai:digital.csic.es:10261/1637462018-04-19T01:00:37Zcom_10261_101com_10261_5col_10261_354
Effect of Cu-doped graphene on the flammability and thermal properties of epoxy composites
Liu, Yun
Babu, Heeralal Vignesh
Zhao, Jianqing
Goñi-Urtiaga, Asier
Sainz, Raquel
Ferritto, Rafael
Pita, Marcos
Wang, De-Yi
China Scholarship Council
National Natural Science Foundation of China
European Commission
Ministerio de Economía y Competitividad (España)
A. Polymer–matrix composites (PMCs)
A. Hybrid
B. Thermal properties
E. Thermosetting resin
Flammability
Cu-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.
2018-04-18T07:46:23Z
2018-04-18T07:46:23Z
2016-03-15
artículo
Composites Part B: Engineering 89: 108-116 (2016)
1359-8368
http://hdl.handle.net/10261/163746
10.1016/j.compositesb.2015.11.035
http://dx.doi.org/10.13039/501100004543
http://dx.doi.org/10.13039/501100001809
http://dx.doi.org/10.13039/501100000780
http://dx.doi.org/10.13039/501100003329
eng
https://doi.org/10.1016/j.compositesb.2015.11.035
Sí
info:eu-repo/grantAgreement/EC/FP7/607793
closedAccess
Elsevier