SYNERGISTIC EFFECTS OF MELAMINE PHOSPHOMOLYBDATE ON INTUMESCENT FLAME RETARDANT POLYPROPYLENE COMPOUND

摘要

Melamine phosphomolybdate (MAPMA) was prepared from melamine (MA) and phosphomolybdic acid (HPMA) in hot water.Synergistic effects of MAPMA on the flame retardancy of polypropylene (PP)/intumescent retardant (IFR) were studied.With the total addition of 15.5 wt％ IFR and 0.5 wt％ MAPMA,the LOI value of the compound is 28.2 and can pass UL-94 V-0 test without melt-dripping.