The Synergistic Effect of Poly(<i>Bisphenol phenyl dichlovophosphate</i>) and Ammonium Polyphosphate in Flame Retardant ABS

The flame retardancy of a thermally stable flame retardant, poly(bisphenol phenyl dichlovophosphate) (PBCL) and its synergistic effect with ammonium polyphosphate were studied in ABS. TG result indicated the good thermal stability and char-forming ability of PBCL. Thermal stability and flammability properties of ABS/APP/PBCL composites were investigated by thermogravimetric analysis (TGA), oxygen index test (LOI) and micro calorimeter calculate test (MCC). The results showed that the synergistic effect of APP and PBCL improved the thermal stability and flame retardancy of ABS, which was favorable to yield more stable layer at higher temperature and enhanced the char residue of ABS resin.