三嗪衍生物的分子结构及其对聚丙烯阻燃性能的关系  

RELATIONSHIP BETWEEN MOLECULAR STRUCTURES OF TRIAZINE DERIVATIVES AND ITS FLAME RETARDATION ON POLYPROPYLENE

作　　者：刘军[1] 廖凯荣[1] 卢泽俭[1] 

机构地区：[1]中山大学高分子研究所

出　　处：《高分子材料科学与工程》1999年第1期73-75,79,共4页Polymer Materials Science & Engineering

基　　金：广东省自然科学基金

摘　　要：设计并合成了５种不同分子结构的三嗪衍生物，将它们分别与多聚磷酸铵复配组成膨胀型阻燃剂（ＩＦＲ）体系。通过氧指数测定、元素分析和扫描电镜观察研究了不同ＩＦＲ对聚丙烯阻燃性能的影响，初步总结出三嗪衍生物的分子结构与成炭效果间的规律，发现含有单个羟乙基结构的三嗪衍生物具有最佳的成炭效果，根据ＩＦＲ的成炭机理对这一规律作出理论上的解释。Five triazine derivatives were synthesized as charring agent and respectively incorporated with ammonium polyphosphate(APP) to prepare intumescent flame retardants(IFR). The influence of the composition of IFRs on the flame retardation of polypropylene(PP) and the relation between structure of the triazine derivatives and their charring effect were studied by determination of oxygen index, elemental analysis and scanning electron microscopy. The results show that the molecular structure of the triazine derivatives has great influence on the carbonation of IFR PPs and the triazine derivative with one hydroxyethyl has the best charring effect. The results were discussed based on the molecular structure of the triazine derivatives and the charring machenism of IFR。

关 键 词：阻燃剂 三嗪衍生物 聚丙烯 阻燃性 分子结构 

分 类 号：O631.22[理学—高分子化学] TQ325.14[理学—化学]