Functionalized graphene oxide (FGO) modified by H3BO3 and (C2H5O)3–Si–(CH2)3NH2 was prepared and applied as an intumescent flame retardant (IFR) coating to reduce thermal transmission to a substrate and enhance fire resistance. Its structural features were tested using Fourier transform infrared (FTIR) spectroscopy, transmission electron microscopy (TEM), X-ray diffraction (XRD), and energy-dispersive X-ray spectrometry (EDS). The IFR coating presented here is based on melamine pyrophosphate (MPP), pentaerythritol (PER), and melamine-formaldehyde resin (MF), with waterborne epoxy resin (WEP) used as an adhesive. The flame retardancy of the coatings was tested on a small scale using the “big panel method” and cone calorimeter test (CCT). The coatings structure and thermostability were investigated using thermogravimetric analysis (TGA), and scanning electron microscopy (SEM), respectively. The results show that the addition of 0.083 phr FGO into the IFR system provided effective fire protection. The SEM results show that the char residues have better morphology, height, and structure, making them useful as a protective shield. Significantly, the IFR coating containing 0.05 g of FGO has proved effective in protecting plywood from fire.

中文翻译：

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含功能化氧化石墨烯水性环氧涂料中木材的防火性能

制备了由 H3BO3 和 (C2H5O)3-Si-(CH2)3NH2 改性的功能化氧化石墨烯 (FGO)，并将其用作膨胀型阻燃剂 (IFR) 涂层，以减少向基材的热传递并提高耐火性。使用傅里叶变换红外 (FTIR) 光谱、透射电子显微镜 (TEM)、X 射线衍射 (XRD) 和能量色散 X 射线光谱 (EDS) 测试其结构特征。此处介绍的 IFR 涂层基于焦磷酸三聚氰胺 (MPP)、季戊四醇 (PER) 和三聚氰胺甲醛树脂 (MF)，并使用水性环氧树脂 (WEP) 作为粘合剂。使用“大面板法”和锥形量热仪测试 (CCT) 对涂层的阻燃性进行了小规模测试。使用热重分析 (TGA) 研究涂层结构和热稳定性，和扫描电子显微镜（SEM），分别。结果表明，在 IFR 系统中添加 0.083 phr FGO 提供了有效的防火保护。SEM 结果表明，炭残留物具有更好的形态、高度和结构，使其可用作保护屏障。值得注意的是，含有 0.05 克 FGO 的 IFR 涂层已被证明可有效保护胶合板免受火灾。