乙烯-醋酸乙烯酯共聚物(EVA)为柔性聚合物,多用于电缆,如护套、电缆修复、封装、防水、防腐以及包装等。但EVA很易燃烧,因此,用于电线电缆时改善阻燃性极其重要。改善聚合物阻燃性的含卤阻燃剂有很多,但由于其腐蚀性与毒性,应用受到许多限制。因此,对于聚合物的阻燃需要用无卤添加剂如无机氢氧化物来替代含卤阻燃剂。 Ethylene-vinyl acetate (EVA) is a flexible polymer used in cables such as jacketing, cable repair, encapsulation, waterproofing, corrosion protection and packaging. However, EVA is very flammable, so it is extremely important to improve flame retardancy when used in electric wire and cable. There are many halogen-containing flame retardants that improve the flame retardancy of polymers, but applications are subject to many limitations due to their corrosiveness and toxicity. Therefore, halogen-free additives, such as inorganic hydroxides, need to be substituted for halogen-containing flame retardants for flame retardancy of polymers.