Polymer nanocomposites using zinc aluminum and magnesium aluminum oleate layered double hydroxides: Effects of the polymeric compatibilizer and of composition on the thermal and fire properties of PP/LDH nanocomposites

摘要: A series of five oleate-containing layered double hydroxides with varied ratios zinc to magnesium, i.e., the general formula Zn2−yMgyAl(OH)6 [CH3(CH2)7CHCH(CH2)7COO]·nH2O, were synthesized and used prepare nanocomposites polypropylene (PP). The nanomaterials characterized by elemental analysis, attenuated total reflection-infrared spectroscopy (ATR-IR), X-ray diffraction (XRD) thermogravimetric analysis (TGA), while composites XRD, TGA, transmission electron microscopy (TEM) cone calorimetry. zinc-containing LDH showed better dispersion in polymer at micrometer level than did magnesium-containing both are equally well-dispersed nanometer level. led more thermally stable systems TGA experiments, gave greater reductions heat release rate during combustion. Dispersion was also affected amount PP-g-MA which present. More a significantly reduced peak rate, enhanced fire performance.