新型无卤无磷改性氢氧化镁阻燃EVA的研制

Preparation and Characterization of New Magnesium Hydroxide Modified with Halogen-free and Non-phosphorus Flame-retarded EVA

通过反应制备了RE30插层接枝的氢氧化镁阻燃剂,用该阻燃剂及适量的EVA-D4085相容剂对乙烯-醋酸乙烯酯共聚物(EVA)进行改性。结果表明:改性后的EVA体系力学性能得到提高,断裂伸长率最高可达59.7%,垂直燃烧性能由改性前的UL V-1提高为UL V-0,热分解温度提高。

Grafted MH flame retardant was prepared by polymerization in which a little compatibilizer（EVA-D4085） was added.Compared to UL V-1 before modification,the vertical combustion performance after that is increased to UL V-0.The elongation at break of the flame retardant composite material is up to 59.7 %.It has good flame retardancy and mechanical properties.