389204 Flame Retardant Polypropylene Nanocomposites Using a Variety of Nanofillers

Monday, November 17, 2014: 1:58 PM
International 9 (Marriott Marquis Atlanta)
Qingliang He, Integrated Composites Laboratory (ICL), Dan F Smith Department of Chemical Engineering, Lamar University, Beaumont, TX, Suying Wei, Department of Chemistry and Biochemistry, Lamar University, Beaumont, TX and Zhanhu Guo, Integrated Composites Laboratory (ICL), Department of Chemical & Biomolecular Engineering, University of Tennessee Knoxville, Knoxville, TN

Polypropylene (PP) nanocomposites reinforced with a variety of nanofillers such as transitional metal@metal oxide core-shell nanoparticles (NPs),1,2magnetite NPs, carbon nanotubes, graphene nanosheets, magnesium hydroxide, aluminum hydroxide, and silicon dioxide were prepared through in- or ex- situ solution based method for flame retardancy application. In order to improve the filler dispersion quality, polymer-filler interfacial bonding and the flame retardant efficiency, the filler surface functionalization/treatment and the addition of surfactant were integrated into the fabrication of PP nanocomposites. The filler surface modification and dispersion were investigated through transmission electron microscopy (TEM) and scanning electron microscopy (SEM). The physicochemical properties of thus prepared nanocomposites including thermal stability, flammability, melting rheological behaviors were studied using thermogravimetric analysis, micro-scale combustion calorimetry, UL-94 vertical burning, and limiting oxygen index. The flame retardancy mechanism for each composition will be discussed in detail and the advantages as well as the disadvantages will also be compared.


1.    Q. He, T. Yuan, X. Zhang, Z. Luo, N. Haldolaarachchige, L. Sun, D. P. Young, S. Wei, Z. Guo, Magnetically Soft and Hard Polypropylene/Cobalt Nanocomposites: Role of Maleic Anhydride Grafted Polypropylene, Macromolecules 46 (2013): 2357-2368

2.    Q. He, T. Yuan, S. Wei, Z. Guo, Catalytic and Synergistic Effects on Thermal Stability and Combustion Behavior of Polypropylene: Influence of Maleic Anhydride Grafted Polypropylene Stabilized Cobalt Nanoparticles, Journal of Materials Chemistry A, 1 (2013): 13064–13075

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See more of this Session: Multifunctional Composites
See more of this Group/Topical: Materials Engineering and Sciences Division