Construction of metal-organic framework (MOF) derived hierarchical hybrid (βCD@P-MOF) as intumescent fire retardant is first proposed to enhance the fire retardancy of epoxy resin (EP), which consists of bio-based phytic acid functionalized MOF(P-MOF) and carbon source β-cyclodextrin. With only 3% of the novel hybrid, EP composites exhibited a 41% reduction in peak heat release rate (pHRR) and 62% decrease in smoke production rate (SPR). The intumescent char as the physical barrier with closed cell was obtained when the loading of FRs increased (EP/7βCD@P-MOF) and the internal char structure was studied by X-ray tomography. The P-MOF simultaneously possessed abundant phosphate and amine groups with the capability to act as an acid source and gas source, thus facilitating the formation of intumescent char. The increased storage modulus (25%) for the EP/7βCD@P-MOF sample indicated the development of high performance fire safety EP without deteriorating its mechanical property. In perspective, the construction of MOF derived intumescent systems opens a window for a novel method using MOF as potential fire retardants.

为了提高环氧树脂（EP）的阻燃性，首先提出了由金属-有机骨架（MOF）衍生的分层混合体系（βCD@ P-MOF）的构建，以提高环氧树脂（EP）的阻燃性。 -MOF）和碳源β-环糊精。仅使用3％的新型混合材料，EP复合材料的峰值放热率（pHRR）降低了41％，烟雾产生率（SPR）降低了62％。当FRs的负荷增加（EP /7βCD@ P-MOF）时，获得了膨胀型炭作为闭孔的物理屏障，并通过X射线断层扫描研究了内部炭结构。P-MOF同时具有丰富的磷酸基和胺基，具有充当酸源和气体源的能力，从而促进膨胀型炭的形成。EP /7βCD@ P-MOF样品的储能模量增加（25％），表明在不降低其机械性能的前提下，高性能防火安全EP的发展。从角度看，MOF衍生的膨胀系统的构造为使用MOF作为潜在阻燃剂的新方法打开了一个窗口。