An intelligent process for developing electromagnetic interference (EMI) shielding composites is imperative to eliminate the escalating pollution of electromagnetic waves (EMWs). Meanwhile, integrating porous and/or layered structures with polymers is demonstrated as an effective approach. Herein, expert knowledge serves as the guidance of the Simulation-First Strategy in designing shielding structures that incorporate MXene bubble wrap-like aerogels (MB_a-bA), characterized by distinct bubble diameters a and densities b. The simulated EMI shielding efficiency (EMI SE) of corresponding MB_a-bA/polyethylene glycol (MB_a-bAP) composites is predicted through the finite element analysis (FEA) simulation. Subsequently, the MB_a-bAP composites are fabricated by template methods and exhibit an outstanding EMI SE of up to 83.1 dB and an ultrahigh SE of absorption (SE_A) of 75.1 dB in X band at a = 10 µm and b = 0.50, perfectly aligning with the simulation outcomes. Combined with macro-scale FEA simulation and experimental evidence, the pronounced EMWs attenuation effect, heat storage/release, and mechanical performances of MB_a-bAP composites are unequivocally substantiated. Based on these, this work proves the feasibility of the intelligent development strategy and provides a research basis for developing advanced EMI shielding materials directed by expert knowledge.

中文翻译：

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以专业知识推动电磁屏蔽聚合物复合材料的智能化发展


开发电磁干扰 （EMI） 屏蔽复合材料的智能工艺对于消除不断升级的电磁波 （EMW） 污染至关重要。同时，将多孔和/或层状结构与聚合物集成已被证明是一种有效的方法。在本文中，专业知识作为仿真优先策略的指导，用于设计包含 MXene 气泡包装状气凝胶 （MB_a-bA） 的屏蔽结构，其特征是不同的气泡直径 a 和密度 b。通过有限元分析 （FEA） 仿真预测相应的 MB_a-bA/聚乙二醇 （MB_a-bAP） 复合材料的模拟 EMI 屏蔽效率 （EMI SE）。随后，通过模板方法制备了 MB_a-bAP 复合材料，在 a = 10 μm 和 b = 0.50 时，在 X 波段表现出高达 83.1 dB 的出色 EMI SE 和 75.1 dB 的超高吸收 SE （SE_A），与仿真结果完全一致。结合宏观尺度有限元分析仿真和实验证据，明确证实了MB_a-bAP复合材料显著的电磁波衰减效应、储热/释放和力学性能。基于这些，这项工作证明了智能化发展战略的可行性，为开发以专业知识为导向的先进 EMI 屏蔽材料提供了研究依据。