With the development of electronic devices, human beings are always disturbed by the widespread electromagnetic radiation. Meanwhile, the impact kinetic energy from external object will also cause injuries to precision electronic instrument itself and human body. Herein, a lightweight and flexible Melamine Sponge/MXene/Polyborosiloxane (MSMP) hybrid structure with both anti-impacting and electromagnetic shielding performance is proposed by incorporating conductive Ti₃C₂T_X and polyborosiloxane (PBS) into porous melamine sponge (MS). The nanocomposite shows outstanding energy dissipation ability which can efficaciously degrade the external impact force due to the shear stiffening characteristic. Meanwhile, the nanocomposite presents an excellent electromagnetic interference (EMI) shielding ability with a maximum SE_T value of 39 dB. Besides, the MSMP displays obvious adhesion property after being cut due to the viscoelastic property and internal supramolecular network of PBS, thus can repeatedly resist the external damage. Finally, a safety sports protective equipment is developed by integrating the MSMP nanocomposite into the common sportswear. Owing to the good integration of safe-guarding performance and EMI shielding properties, the MSMP nanocomposites show high prospective potential in precision electronic instruments and wearable protective equipment.

随着电子设备的发展，人们总是被广泛的电磁辐射所干扰。同时，来自外部物体的冲击动能也会对精密电子仪器本身和人体造成伤害。在此，通过掺入导电性Ti ₃ C ₂ T _X，提出了兼具抗冲击和电磁屏蔽性能的轻巧，灵活的三聚氰胺海绵/二甲苯/聚硼硅氧烷（MSMP）杂化结构。将聚硼硅氧烷（PBS）注入多孔三聚氰胺海绵（MS）中。纳米复合材料显示出优异的能量消散能力，由于剪切硬化特性，其可以有效地降低外部冲击力。同时，纳米复合材料具有出色的电磁干扰（EMI）屏蔽能力，具有最大的SE _T值为39 dB。此外，由于PBS的粘弹性和内部超分子网络，MSMP切割后显示出明显的粘附性，因此可以反复抵抗外部损伤。最后，通过将MSMP纳米复合材料整合到普通运动服中，开发了一种安全运动防护装备。由于安全保护性能和EMI屏蔽性能的良好结合，MSMP纳米复合材料在精密电子仪器和可穿戴防护设备中显示出很高的潜力。