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Issue 43, 2012
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Functionalized graphene oxide for fire safety applications of polymers: a combination of condensed phase flame retardant strategies

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Abstract

Graphene is promising for the fire safety applications of polymers, but the ease of burn out limits further developments. A novel strategy based on functionalized graphene oxide (FGO) is developed to overcome this challenge. Graphene oxide is functionalized with char-catalyzing agents and reactive compounds and incorporated into polystyrene. When FGO–polystyrene composites are degraded or burned, FGO catalyzes the char formation from polystyrene (Char A). Char A protects FGO from burning out and then FGO acts as a graphitic char (Char B). Because of the combination of Char A, Char B, the physical barrier effects of FGO, and the strong interfacial interactions of FGO and polymers, the fire safety properties of the FGO–polystyrene composites are improved, including decreased peak CO release rate (66% decrease), decreased peak CO2 release rate (54% decrease), decreased peak heat release rate (53% decrease), decreased thermal degradation rate (30% decrease), decreased total heat release (38% decrease), and increased char formation (7 times), etc. This strategy combines several condensed phase flame retardant strategies such as the nanocomposite technique, intumescent flame retardant systems and phosphorus–nitrogen synergism systems, and hence results in more significant improvements as compared with prior work.

Graphical abstract: Functionalized graphene oxide for fire safety applications of polymers: a combination of condensed phase flame retardant strategies

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Publication details

The article was received on 27 Jul 2012, accepted on 12 Sep 2012 and first published on 12 Sep 2012


Article type: Paper
DOI: 10.1039/C2JM35001G
Citation: J. Mater. Chem., 2012,22, 23057-23063
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    Functionalized graphene oxide for fire safety applications of polymers: a combination of condensed phase flame retardant strategies

    C. Bao, Y. Guo, B. Yuan, Y. Hu and L. Song, J. Mater. Chem., 2012, 22, 23057
    DOI: 10.1039/C2JM35001G

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