高分子材料阻燃剂的研究一直备受关注。近年来,金属有机框架(MOFs)材料在高分子材料的阻燃应用中吸引了广泛关注。综述了当前常用的阻燃MOFs材料,主要包括UIO-66、ZIF-8以及ZIF-67系列,认真总结了各个体系的阻燃性能。这些MOF材料既具有阻燃金属元素,还具有阻燃能力的有机配体。通过最大热释放速率(PHRR)以及总热释放量(THR)变化,可以看出这几种MOF材料对高分子阻燃有着良好的效果,可被应用于大多数高分子材料的阻燃。另外,MOF材料高度的稳定性以及其独特的多孔结构也让它们可与其他小分子阻燃剂具有更好的协同阻燃效果。比较发现在这3种材料中,UIO-66制备较为简单,ZIF-8的阻燃能力最好,ZIF-67则在抑烟方面有着更大潜力。虽然目前MOFs材料的应用也还存在一定的问题,但其发展潜力已经有所展现。
The research on flame retardants of polymer materials has been a topic of consistent interest.In recent years,metal organic frameworks (MOFs) materials have garnered widespread attention for their flame-retardant application of polymers.This review provided an overview of commonly used flame-retardant MOFs materials,mainly including UiO-66,ZIF-8 and ZIF-67 series,and comprehensively summarized the flame-retardant properties of each system.These MOF materials not only had flame-retardant metal elements,but also had flame-retardant organic ligands.Through the changes of maximum heat release rate (PHRR) and total heat release (THR),it could be seen that these MOF materials had good effects on polymer flame-retardant,and could be applied to the flame-retardant of most polymer materials.In addition,the high stability of MOF materials and their unique porous structure also made them have better synergistic flame-retardant effect with other small molecule flame retardants.It was found that among the three materials,UiO-66 was relatively simple to prepare,ZIF-8 had the best flame-retardant ability,and ZIF-67 had greater potential in smoke suppression.Although there were some problems in the application of MOFs materials,their development potential had been shown.
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基金资助
广东省基础与应用基础研究基金会项目(2022A151501198)
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