材料科学
阻燃剂
复合材料
乙烯-醋酸乙烯酯
氢氧化铝
多孔性
醋酸乙烯酯
氢氧化物
粘度
铝
化学工程
聚合物
共聚物
工程类
作者
Florian Cavodeau,Belkacem Otazaghine,Rodolphe Sonnier,José‐Marie Lopez‐Cuesta,Christelle Delaite
标识
DOI:10.1016/j.polymdegradstab.2016.04.018
摘要
In the present work, diatomite was used as co-filler in aluminium hydroxide/ethylene-vinyl acetate composites (ATH/EVA). This silica-based marine sediment acts as a synergistic agent with ATH, to increase the flame retardant properties of EVA composites. When diatomite was used with ATH the formation of an expanded layer during cone calorimetry tests was observed. This layer presents a complex structure which better insulates the sample and reduces the heat release rate (HRR). Rheological measurements, such as complex viscosity obtained with an ARES apparatus, suggest an influence of the viscosity of the sample melt. We assume that the viscosity of the EVA composites is influenced by the porosity of the diatomite. Better residue cohesion was also obtained in presence of diatomite.
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