The rapid development of industrialization requires the advancement of multifunctional coatings. In this study, successful self-assembly of iron porphyrin on BP nanosheets resulted in the synthesis of IBP nanosheets with a sandwich structure. Characterization tests including SEM, XPS, SPM, and XRD confirmed the successful preparation of IBP nanosheets with robust structural stability and antioxidation. Subsequently, a water-based epoxy resin (WEP) coating containing IBP nanosheets was prepared. Test results revealed that the composite coating containing 0.4 wt.% IBP nanosheets exhibited outstanding anti-corrosion, wear-resistant, and flame-retardant properties. After 42 days of immersion in a 3.5 wt.% NaCl solution, the R_ct value of the 4-IBP/WEP coating was 1.79 × 10⁹ Ω cm², surpassing the Pure WEP coating by more than 3 orders of magnitude. Additionally, the peak heat release rate (PHRR) and wear rate of the 4-IBP/WEP coating decreased by 19.29% and 90.97% compared to the Pure WEP coating. This research presents a novel idea for the utilization of BP nanosheets in multifunctional coatings.

工业化的快速发展需要多功能涂料的进步。在这项研究中，铁卟啉在 BP 纳米片上成功自组装，合成了具有三明治结构的 IBP 纳米片。 SEM、XPS、SPM 和 XRD 等表征测试证实了 IBP 纳米片的成功制备，具有良好的结构稳定性和抗氧化性。随后，制备了含有IBP纳米片的水性环氧树脂（WEP）涂料。测试结果表明，含有0.4 wt.% IBP纳米片的复合涂层表现出优异的防腐、耐磨和阻燃性能。在3.5 wt.% NaCl溶液中浸泡42天后，4-IBP/WEP涂层的R _ct 值为1.79×10 ⁹ Ω·cm ²