A polyurea-chlorocyclophosphazene microcapsule flame retardant was prepared by interfacial polymerization with 2,4-toluene diisocyanate(TDI) and hexanediamine as the raw materials.

• 以甲苯2,4-二异氰酸酯和己二胺为原料,采用界面聚合法,制备了囊心为环状氯化磷腈、囊壁为聚脲的微胶囊阻燃剂。