ZHS@ Mg‐Al‐LDH and ZHS@α‐ZrP hybrid materials were prepared by electrostatically loading zinc hydroxystannate (ZHS) on the layered compounds (Mg‐Al‐LDH and α‐ZrP) in this work. With the addition of 2 wt% of the two hybrid materials to epoxy resin (EP), respectively, the fire hazard of EP and its composites were investigated. The limiting oxygen index (LOI) of ZHS@ Mg‐Al‐LDH/EP composite increased by 19.0% compared with pure EP, while its peak heat release rate (PHRR), total heat release rate (THR), and peak smoke release rate (SPR) decreased by 48.2%, 20.8%, and 21.6%, respectively, evidenced by the results of the LOI test and cone calorimetry test (CCT). The LOI of ZHS@α‐ZrP/EP composite increased by 20.4%, and its PHRR, THR, and SPR decreased by 47.7%, 21.4%, and 27.1%, respectively. Both hybrid materials showed prominent flame retardant and smoke suppressing properties. In addition, through the analysis of the TG‐IR and Raman spectrum of residual char, the specific mechanism of flame retardance and smoke suppression was explored.

中文翻译：

---

羟基锡酸锌装饰的不同离子层状化合物对环氧树脂阻燃性和烟气性能的影响

ZHS @ Mg-Al-LDH和ZHS @α-ZrP杂化材料是通过将羟基锡酸锌（ZHS）静电加载到层状化合物（Mg-Al-LDH和α-ZrP）上而制备的。通过分别向环氧树脂（EP）中添加2 wt％的两种混合材料，研究了EP及其复合材料的火灾隐患。ZHS @ Mg-Al-LDH / EP复合材料的极限氧指数（LOI）与纯EP相比增加了19.0％，而其峰值放热率（PHRR），总放热率（THR）和峰值烟气释放率LOI测试和锥形量热测试（CCT）的结果分别证明（SPR）下降了48.2％，20.8％和21.6％。ZHS @ α‐ZrP / EP复合材料的LOI分别提高了20.4％，其PHRR，THR和SPR分别降低了47.7％，21.4％和27.1％。两种混合材料均显示出显着的阻燃和抑烟性能。此外，通过分析残留炭的TG-IR和拉曼光谱，探索了阻燃和抑烟的具体机理。