Synthesis of multifunctional Sb2MoO6 nanoflakes for boosting the fire safety and mechanical strength of ABS resin

Synthesis of multifunctional Sb2MoO6 nanoflakes for boosting the fire safety and mechanical strength of ABS resin

To reduce the fire hazard of acrylonitrile butadiene-styrene (ABS), the Sb2MoO6 (AM) nanosheets were successfully prepared by a simple hydrothermal method using SbCl3 and NaMoO4·2H2O as Sb and Mo sources, respectively. At different loading levels (0–10 wt%), the Sb2MoO6 nanoflakes can be uniformly dispersed in the ABS matrix. Compared with pure ABS, the tensile strength of ABS/AM10 composite with 10 wt% of AM increased by 13%, indicative of the reinforcement effect of AM. Moreover, the introduction of AM did not reduce the initial decomposition temperature of ABS composites, but significantly increased the residue at 600 °C, demonstrating the improved carbonization. AM effectively improved the fire safety of ABS, and 5 and 10 wt% of it decreased the peak heat release rate (PHRR) of ABS/AM5 and ABS/AM10 by 19.7% and 32.9%, respectively. The peak smoke production rate (PSPR) of ABS/AM10 was reduced by 32.4% relative to that of ABS. The improved fire safety of ABS/AM composites was mainly attributed to the physical barrier effect of Sb2MoO6 nanosheets. Therefore, this work proposes a feasible approach for the preparation of fire-retardant and strong ABS composites based on metal-oxide nanomaterials.