Utilization of MHSH as Synergistic Agent in Flameâ€retarded PBS Composites

Abstract

Basic magnesium hydroxide sulfate whisker (MHSH) was used as flameâ€retarded synergistic agent of intumescent flame retardant (IFR) system, and to prepare flameâ€retarded PBS composites. Furthermore, the mechanics performance, the limiting oxygen index (LOI) analysis and the flame retardant properties of the composites were investigated. Experimental data show that with the incorporation of MHSH, the LOI values and the ULâ€94 levels of composites improved in comparison with those of the composites without MHSH addition, indicating the synergistic effect of MHSH in composites. Furthermore, when the IFR and MHSH loading were 23% and 2 wt%, respectively, the ULâ€94 level achieved V0 rate. Simultaneously, as indicated by mechanical properties, illustrating that MHSH played a reinforcement effect in composites.