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Flame Retardant Synergism of Hydroxy Silicone Oil and Al(OH) 3 in EVA Composites

2009; Marcel Dekker; Volume: 48; Issue: 6 Linguagem: Inglês

10.1080/03602550902824531

1525-6111

Chuanmei Jiao, Xilei Chen,

Fire dynamics and safety research

A synergistic effect on flame retardancy was found when hydroxy silicone oil (HSO) was incorporated into ethylene vinyl acetate/aluminum hydroxide (EVA/ATH) composite. The fire performance of EVA and EVA composites was studied by using limiting oxygen index (LOI), UL 94, and cone calorimeter test (CCT). Compared with the EVA/ATH binary composite, the LOI values of the EVA/ATH/HSO ternary composites at the same additive loading are all decreased. The CCT data indicated that the addition of HSO in EVA/ATH system not only reduces the heat release rate, but also prolonged the ignition time of the composite. Thermogravimetric analysis revealed that ATH accelerated the loss of acetic acid, but hydroxy silicone oil assisted to reduce ATH's accelerating effect.