Preparation and properties of novel flame retardant low-density polyethylene composites

To improve the poor water resistant property of traditional intumescent flame retardant materials, a novel intumescent flame retardant low-density polyethylene (LDPE) composites were prepared based on a novel char forming agent (CFA) and microencapsulated ammonium polyphosphate (MCAPP). The synergistic effect between CFA and MCAPP on the flame retardant property, the thermal stability, and the water resistance property of flame retardant LDPE composites were investigated to ensure the best CFA/MAPP ratio. The results show that when the ratio of CFA/MAPP is 1∶3, the flame retardant LDPE composites show excellent flame retardant properties, thermal stability and water resistant property.