Flame retardants are chemical compounds when mixed or incorporated in to polymers provide varying degrees of flammability protection. Flammable polymeric materials are ubiquitous with a wide array of applications. However, recent studies have shown potential environmental and health concerns with certain halogen-containing flame retardants. Thus, it has now become a necessity to explore new and effective materials that are safer and environmentally benign. In this context, halogen-free phosphorus- and nitrogen-containing flame retardants have attracted much attention worldwide. Moreover, s-triazine is the central focus because of its excellent charring effect. General strategies for synthesizing s-triazine compounds mostly via nucleophilic substitution reaction have been highlighted. This review provides a comprehensive description on design and synthesis of flame-retardant materials with significant flammability performance.

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s-三嗪类含磷氮阻燃材料的研究进展

阻燃剂是一种化合物，当与聚合物混合或掺入时，可提供不同程度的可燃性保护。易燃聚合物材料无处不在，具有广泛的应用。然而，最近的研究表明，某些含卤素阻燃剂存在潜在的环境和健康问题。因此，现在有必要探索更安全、更环保的新型有效材料。在此背景下，无卤含磷、含氮阻燃剂在世界范围内备受关注。此外，s-三嗪因其出色的炭化效果而成为中心焦点。已经强调了主要通过亲核取代反应合成 s-三嗪化合物的一般策略。