The rapid development of aerospace weapons and equipment, wireless base stations and 5G communication technologies has put forward newer and higher requirements for the comprehensive performances of polymer-based electromagnetic interference (EMI) shielding composites. However, most of currently prepared polymer-based EMI shielding composites are still difficult to combine high performance and multi-functionality. In response to this, based on the research works of relevant researchers as well as our research group, three possible directions to break through the above bottlenecks are proposed, including construction of efficient conductive networks, optimization of multi-interfaces for lightweight and multifunction compatibility design. The future development trends in three directions are prospected, and it is hoped to provide certain theoretical basis and technical guidance for the preparation, research and development of polymer-based EMI shielding composites.

航空航天武器装备、无线基站和5G通信技术的快速发展，对聚合物基电磁干扰（EMI）屏蔽复合材料的综合性能提出了更新、更高的要求。然而，目前制备的大多数聚合物基EMI屏蔽复合材料仍然难以兼具高性能和多功能性。针对这一点，基于相关研究人员以及我们课题组的研究工作，提出了突破上述瓶颈的三个可能的方向，包括构建高效的导电网络、优化多接口以实现轻量化和多功能兼容性设计。展望了未来三个方向的发展趋势，希望为聚合物基EMI屏蔽复合材料的制备、研发提供一定的理论基础和技术指导。