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Journal of Materials Science
Erschienen in: Journal of Materials Science 16/2015

01.08.2015 | Original Paper

Enhanced flame retardancy of polypropylene by melamine-modified graphene oxide

verfasst von: Bihe Yuan, Haibo Sheng, Xiaowei Mu, Lei Song, Qilong Tai, Yongqian Shi, Kim Meow Liew, Yuan Hu

Erschienen in: Journal of Materials Science | Ausgabe 16/2015

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Abstract

Graphene oxide (GO) is modified by melamine (MA) via the strong π–π interactions, hydrogen bonding, and electrostatic attraction. PP composites are prepared by melt compounding method, and GO/functionalized graphene oxide (FGO) is in situ thermally reduced during the processing. The results of scanning electron microscopy and transmission electron microscopy indicate that FGO nanosheets are homogeneously dispersed in polymer matrix with intercalation and exfoliation microstructure. The FGO/PP nanocomposite exhibits higher thermal stability and flame retardant property than those of the GO counterpart. During the thermal decomposition, the intercalated MA is condensed to graphitic carbon nitride (g-C3N4) in the confined micro-zone created by GO nanosheets. This in situ formed g-C3N4 provides a protective layer to graphene and enhances its barrier effect. The heat release rate and the escape of volatile degradation products are reduced in the FGO-based nanocomposites.
Vorheriger Artikel Applicability of silicon micro-finned heat sinks for 500× concentrating photovoltaics systems
Nächster Artikel Silane functionalization of graphene oxide and its use as a reinforcement in bismaleimide composites

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Metadaten
Titel
Enhanced flame retardancy of polypropylene by melamine-modified graphene oxide
verfasst von
Bihe Yuan
Haibo Sheng
Xiaowei Mu
Lei Song
Qilong Tai
Yongqian Shi
Kim Meow Liew
Yuan Hu
Publikationsdatum
01.08.2015
Verlag
Springer US
Erschienen in
Journal of Materials Science / Ausgabe 16/2015
Print ISSN: 0022-2461
Elektronische ISSN: 1573-4803
DOI
https://doi.org/10.1007/s10853-015-9083-0

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