Synergistic flame retardant effect of fullerene in styrene- butadiene- styrene block copolymer/ aluminium hydroxide composites
writer：Zhou XR, Ran SY, Hu HF, Fang ZP*
keywords：Fullerene; Aluminium hydroxide; Flammability; SBS
source：期刊
specific source：J Therm Anal Calorim, 2016.6,, 125: 199-204
Issue time：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.