Abstract
The objective of this work was to compare the flame retardancy of intumescent flame retardant ethylene–vinyl acetate (EVA/IFR) composites containing different metal oxides including lanthanide oxide, iron oxide, the mixture of iron oxide and lanthanide oxide, and lanthanum ferrite nanocrystalline (LaFeO3). A novel compound containing iron and lanthanum, LaFeO3 was successfully prepared. The EVA/IFR composites with these different coadditives were then fabricated through a melt blending process. Thermogravimetric analysis data showed that these different coadditives could increase the char residue formation. Cone calorimeter results revealed that these different coadditives and IFR could clearly change the decomposition behavior of EVA and form a char layer on the surface of the composites, consequently resulting in efficient reduction of the flammability parameters, such as heat release rate, total heat release, average mass loss rate, average smoke extinction area, and so on. Moreover, significant improv...
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