三聚氰胺改性聚氨基环三磷腈的制备及性能研究

摘要

Polyaminocyclotriphosphazene modified with melamine was synthesized by the condensation of hexachlorocyclotriphosphazene (TCP) and melamine (MA),then ammoniation with ammonia,final polycondensation.The results showed that the optimum conditions of condensation were as follows:reaction temperature being 80 ℃,reaction time being 18 h.The optimum conditions of polycondensation were as follows:reaction temperature being 180 ℃,reaction time being 15 min.The recovery and thermal stability of the product were improved significantly,and the moisture absorption and water-solubility were reduced by melamine modification.%以三聚氰胺、六氯环三磷腈和氨为原料,通过三聚氰胺和六氯环三磷腈缩合,再氨化,最后缩聚制得了三聚氰胺改性聚氨基环三磷腈.三聚氰胺与六氯环三磷腈缩合的较佳条件:反应温度为80℃,反应时间为18 h;缩聚的较佳条件:聚合温度为180℃,聚合时间为15min;通过三聚氰胺改性,明显提高了产品的磷收率,降低了产品的吸湿性和水溶性,改善了产品的热稳定性.