无卤阻燃剂的复配对EVA保温材料阻燃性能的影响  

Influences of halogen-free flame retardant to ethylene-vinyl acetate copolymer

作　　者：刘小箐[1,2] 许绿丝[2] 纪炜坤 杨城君 苑媛[1] 

机构地区：[1]华侨大学环境友好功能材料教育部工程中心,福建厦门361021 [2]国家复合改性聚合物材料工程技术研究中心,贵阳550014

出　　处：《功能材料》2016年第5期185-189,共5页Journal of Functional Materials

基　　金：国家自然科学基金资助项目(51178195)

摘　　要：在弹性乙烯醋酸乙烯酯共聚物(EVA)发泡体系中,添加氢氧化镁(MH)、氢氧化铝(ATH)、红磷3种无卤阻燃剂,研究它们对体系阻燃性能的影响。结果表明,MH、ATH和红磷单独添加均可以不同程度改善EVA发泡体系的阻燃性,但仍较差。MH、ATH和红磷3种阻燃剂复配添加可以大大提高EVA发泡体系的阻燃性能。当MH和ATH添加量分别为32.1%和10.7%,红磷的添加量为5%时,阻燃性能最好,制备的无卤阻燃保温材料的导热系数为0.079W/(m·K),极限氧指数值(LOI)为34.5%,垂直燃烧性能为V-0级,水平燃烧性能为HB级,满足防火材料B1级的要求,同时解决了保温发泡材料的脆性问题。The authors studied the influences of Halogen-free flame retardant to elastic ethylene-vinyl acetate（EVA） foaming material, especially its flame retardant properties. Three types of flame retardants were investi-gated： magnesium hydroxide （MH）, aluminum hydroxide （ATH）, and red phosphorus. The results showedthat, individually, each of the flame retardant improved the flame retardant properties of EVA foaming materi-al, to various degrees. However, none of the flame retardant by itself provided adequate improvement. On theother hand, by compounding MH, ATH and red phosphorus together, the flame retardant properties were im-proved significantly. The best improvement was achieved with the following combination： MH 32.1%, ATH10.7% and red phosphorus 5%. The corresponding properties of the resulting EVA foaming material were：coefficient of thermal conductivity： 0.079 W/（m · K） ; the limit oxygen index （LOI） ： 34.5% ; the vertical burn-ing level：V-O; the horizontal burning level： HB. In summary, the resulting EVA foaming material meets theburning level requirements B1 for insulation materials, while at the same time resolved the brittleness issue ofEVA foaming materials.

关 键 词：乙烯醋酸乙烯酯共聚物 无卤阻燃剂 发泡材料 

分 类 号：O631.3[理学—高分子化学]