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Thermal and flammability performance of polypropylene composites containing melamine and melamine phosphate-modified α-type zirconium phosphates



In this article, melamine (MA) and melamine phosphate (MP) have been intercalated into α-type zirconium phosphate (α-ZrP) interlayer spaces. The structure and thermal properties of the corresponding powders, MA-ZrP and MP-ZrP, were ascertained by X-ray diffraction, Fourier transform infrared spectra, X-ray photoelectron spectroscopy measurement, and thermogravimetric analyses (TGA). Furthermore, polypropylene (PP) and its intumescent flame retardant (IFR) composites containing the two organically modified α-ZrP powders using maleic anhydride-grafted PP (JPP) as compatibilizer were fabricated by melt blending. The results from TGA and cone calorimetry demonstrated that PP/JPP and PP/JPP/IFR composites containing MA-ZrP and MP-ZrP exhibited better thermal stability and burning behavior in comparison with their corresponding counterparts, PP/JPP and PP/JPP/IFR, respectively. © 2013 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2014, 131, 40254.

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