新型阻燃低密度聚乙烯材料的制备及性能研究

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

摘要: 为了改善传统膨胀阻燃材料耐水性差的问题，将一种新型大分子三嗪系成炭剂（CFA）与包裹聚磷酸铵（MCAPP）复配，通过熔融共混法制备新型无卤膨胀阻燃低密度聚乙烯复合材料(LDPE)，并研究成炭剂CFA与MCAPP组成的膨胀阻燃剂对LDPE的阻燃性能、热性能以及耐水性能的影响，探求CFA与MCAPP之间的最佳复配比例.实验结果表明，当CFA与MCAPP的比例为1∶3时，此种新型无卤膨胀阻燃低密度聚乙烯复合材料具有优良的阻燃性能、热稳定性能以及耐水性能.

Abstract: 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.