热塑性聚烯烃弹性体/磷酸二氢铵阻燃复合体系的性能  

Properties of TPO/ADP flame retardant compound

作　　者：李晓燕[1] 冯钠[1] 李红[1] 王旭[1] 刘建辉[1] 

机构地区：[1]大连工业大学化工与材料学院,辽宁大连116034

出　　处：《大连工业大学学报》2010年第2期137-139,共3页Journal of Dalian Polytechnic University

摘　　要：以热塑性聚烯烃弹性体(TPO)为基体,设计了以磷酸二氢铵(ADP)同时为气源、酸源阻燃剂的TPO/ADP阻燃复合体系。重点研究了该体系的阻燃性能和膨胀层结构,并研究了复合阻燃体系的力学性能。结果表明,ADP使体系的LOI数值和垂直燃烧测试等级得到提高。当ADP用量达到70份时,LOI达到25.9%,垂直燃烧测试达到FV-0级,体系成为难燃材料。光学显微镜(OM)分析表明,ADP是良好的气源,能够促进体系生成多孔的膨胀层,并且体系产生了具有一定阻隔作用的炭层结构。力学性能研究表明,ADP的加入使复合阻燃体系的拉伸强度得到一定提高,但断裂伸长率有所降低。当ADP的加入量为80份时,复合体系的断裂伸长率为300%,仍能够满足建筑防水材料要求。According to chemical intumescent flame retardant mechanism, TPO flame retardant composites were designed with TPO as matrix. The properties of TPO chemical intumescent flame retardant and the structure of char layer were studied. ADP improves the LOI and the grade of vertical burning test. When ADP were up to 70 phr, LOI reached 25.9% and vertical burning test was FV-0. OM analysis indicated that ADP accelerated lacunaris intumescent layer and the capability of producing obstruct charry. The toughness of the compounds was reduced with increasing addition of ADP. When ADP was 80 phr, the breaking elongation still reached to 300%.

关 键 词：热塑性聚烯烃弹性体 磷酸二氢铵 化学膨胀阻燃 

分 类 号：TQ325.5[化学工程—合成树脂塑料工业]