Along with the rapid development of electronic devices and communication systems, electromagnetic (EM) radiation pollution has become an increasingly serious problem. However, it is greatly challenging to achieve absorption-dominated electromagnetic interference (EMI) shielding and robust multifunctional simultaneously. In this work, we synthesize zeolitic imidazolate framework (ZIF67)-derived CoNC@reduced graphene oxide (rGO) and amine-rich surface rGO (NH₂@rGO), and subsequently fabricate NH₂-CoNC@rGO-fluorinated epoxy (FEP) nanocomposites by the microwave irradiation strategy, and this is the first time to obtain composite combining excellent EMI shielding, mechanical robustness, superamphiphobicity and long-term anticorrosion properties. Wherein, 3-(perfluoro-n-octyl) propenoxide (PFOP) provides the perfluorinated long chains, which improves both mechanical properties via internal antiplasticization effect, and the dispersity and loading of nanofiller via C-F···H-N/π interactions; 4,4'-hexafluoroisopropylidenediphenol diglycidyl ether (FAEP) increases the compatibility and mechanical robustness; NH₂@rGO provides the good interfacial bonding, dielectric attenuation and anode protection; CoNC@rGO endows suitable magnetic and dipolar relaxation loss, micro/nanostructures and cathodic protection. Remarkably, the optimized nanocomposite exhibits satisfied tensile and impact strength (64.4 MPa, 33.7 kJ/m²), EMI shielding properties (56 dB), thermal conductivity (1.13 W·m^-1·K^-1), superhydrophobicity (154°) and superoleophobicity (151°), self-cleaning, good chemical and mechanical robustness, Joule heating capacity and long-term anticorrosion (30 d). Furthermore, the microwave irradiation effect, multiple EMI shielding and anti-corrosion mechanism have been discussed in detail. This study provides an efficient guideline for designing multicomponent and multidimensional epoxy nanocomposite with EMI shielding and robust multifunctional property in aerospace, underwater equipment, electronic devices and precision construction protection.

随着电子设备和通信系统的快速发展，电磁（EM）辐射污染已成为一个日益严重的问题。然而，同时实现以吸收为主的电磁干扰（EMI）屏蔽和稳健的多功能是极具挑战性的。在这项工作中，我们合成了沸石咪唑酯骨架 (ZIF67) 衍生的 CoNC@还原氧化石墨烯 (rGO) 和富含胺的表面 rGO (NH ₂ @rGO)，随后制备了 NH ₂-CoNC@rGO-氟化环氧树脂（FEP）纳米复合材料采用微波辐射策略，这是首次获得兼具优异EMI屏蔽、机械鲁棒性、超双疏性和长期防腐性能的复合材料。其中，3-(全氟正辛基)环氧丙烷(PFOP)提供了全氟化长链，通过内部抗塑化作用提高了力学性能，并通过CF···HN/π相互作用提高了纳米填料的分散性和负载量；4,4'-六氟异亚丙基二酚二缩水甘油醚 (FAEP) 增加相容性和机械强度；氨水₂@rGO提供良好的界面结合、介电衰减和阳极保护；CoNC@rGO 赋予合适的磁和偶极弛豫损耗、微/纳米结构和阴极保护。值得注意的是，优化后的纳米复合材料表现出令人满意的拉伸和冲击强度（64.4 MPa，33.7 kJ/m ²）、EMI 屏蔽性能（56 dB）、热导率（1.13 W·m ^-1 ·K ^-1)、超疏水性(154°)和超疏油性(151°)、自清洁、良好的化学和机械鲁棒性、焦耳热容量和长期防腐(30 d)。此外，还详细讨论了微波辐射效应、多重EMI屏蔽和防腐机制。本研究为设计多组分和多维环氧纳米复合材料提供了有效的指导，该复合材料在航空航天、水下设备、电子设备和精密结构保护中具有 EMI 屏蔽和稳健的多功能特性。