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Synergistic flame retardant effect of fullerene in styrene- butadiene- styrene block copolymer/ aluminium hydroxide composites
作者:Zhou XR, Ran SY, Hu HF, Fang ZP*
关键字:Fullerene; Aluminium hydroxide; Flammability; SBS
论文来源:期刊
具体来源:J Therm Anal Calorim, 2016.6,, 125: 199-204
发表时间:2016年
The effects of fullerene (C60) and aluminium hydroxide (ATH)/C60 combination on the thermal stability, flame retardancy and mechanical properties of styrene- butadiene- styrene block copolymer (SBS) were investigated. Adding small amount (0.5 wt.% - 2 wt.%) of C60 into SBS matrix raised the initial decomposition temperature of the composites slightly, while C60 alone had little influence on the flame retardant behavior. In SBS/ATH/C60 system, however, the addition of C60 significantly improved the UL-94 vertical combustion grade and limiting oxygen index (LOI). The total content of the flame retardant in SBS/ATH/C60 system (56 wt.%) was lower than that in SBS/ATH system (60 wt.%) when UL-94 reached V0 level. Consequently, the adverse effects on the mechanical properties due to the high level of flame retardant loading reduced. Meanwhile, the data obtained from cone calorimetric test indicated that C60 can not only reduce the heat release rate, but also raise the char residue of SBS/ATH composites.