In this work, a novel graphene (RGO) hybrid added with Zeolitic Imidazolate Framework/Layered Double Hydroxide (ZIF/LDH) was prepared to obtain a synergistic system (RGO-LDH/ZIF-67). Subsequently, RGO-LDH/ZIF-67 was mixed into epoxy resin (EP) by physical blending for the purpose of improving its fire safety. Based on a series of tests and analyses, it was found that RGO-LDH/ZIF-67 was beneficial to reducing the heat release of EP during its burning process. The peak heat release rate (PHRR) and total heat release (THR) of the composite with 2 wt% RGO-LDH/ZIF-67 were reduced to 464 kW m⁻² and 37.9 MJ m⁻², respectively. Simultaneously, the smoke production in its flame and flameless combustion were also reduced significantly. According to the char analysis of different composites, the main mechanism is discussed. This work provided a new type of modified RGO for improving the fire safety of EP.

在这项工作中，制备了一种新型的石墨烯（RGO）杂化体，并加入了沸石咪唑酸酯骨架/层状双氢氧化物（ZIF / LDH），以获得协同系统（RGO-LDH / ZIF-67）。随后，通过物理掺混将RGO-LDH / ZIF-67混合到环氧树脂（EP）中，以提高其防火安全性。根据一系列测试和分析，发现RGO-LDH / ZIF-67有助于减少EP燃烧过程中的热释放。具有2 wt％RGO-LDH / ZIF-67的复合材料的峰值放热率（PHRR）和总放热（THR）降至464 kW m ^-2和37.9 MJ m ^-2， 分别。同时，火焰和无焰燃烧产生的烟雾也大大减少。通过对不同复合材料的炭化分析，探讨了其主要机理。这项工作为提高EP的防火安全性提供了一种新型的RGO。