Simultaneous development of well impedance matching and strong loss capability has become a mainstream method for achieving outstanding electromagnetic microwave absorption (EMWA) performances over wide temperature range. However, it is difficult to pursue both due to the mutual restraint of relationship between impedance matching and loss capability about temperature. Here, we propose a flexible regulation engineering of titanium nitride (TiN) nanofibrous membranes (NMs, TNMs), which could be distributed uniformly in the polydimethylsiloxane (PDMS) matrix and contributed to the formation of abundant local conductive networks, generating the local conductive loss and enhancing the loss ability of EMWs. Moreover, when the TNMs are used as functional units and dispersed in the matrix, the corresponding composites exhibit an outstanding anti-reflection effect on microwaves. As hoped, under the precondition of good impedance matching, local conductive loss and polarization loss together improve the loss capacity at room temperature, and polarization loss can compensate the local conductive loss to acquire effective dielectric response at elevated temperature. Benefiting from the reasonably synergistic loss ability caused by flexible regulation engineering, the corresponding composites exhibit the perfect EMWA performances in a wide temperature range from 298 to 573 K. This work not only elaborates the ponderable insights of independent membrane in the composition-structure-function connection, but also provides a feasible tactic for resolving coexistence of well impedance matching and strong loss capability issues in wide temperature spectrum.

同时开发良好的阻抗匹配和强损耗能力已成为在宽温度范围内实现出色的电磁微波吸收（EMWA）性能的主流方法。但由于阻抗匹配与温度损耗能力之间的关系相互制约，两者难以兼顾。在这里，我们提出了一种氮化钛（TiN）纳米纤维膜（NMs，TNMs）的灵活调控工程，它可以均匀分布在聚二甲基硅氧烷（PDMS）基质中，并有助于形成丰富的局部导电网络，产生局部导电损耗并增强电磁波的损失能力。此外，当TNMs作为功能单元分散在基体中时，相应的复合材料表现出优异的微波减反射效果。正如所希望的，在良好阻抗匹配的前提下，局部传导损耗和极化损耗共同提高了室温下的损耗能力，而极化损耗可以补偿局部传导损耗，从而在高温下获得有效的介电响应。得益于灵活调节工程带来的合理协同损失能力，相应的复合材料在298至573 K的宽温度范围内表现出完美的EMWA性能。这项工作不仅阐述了独立膜在组成-结构-功能方面的重要见解。连接，而且还为解决宽温度范围内阻抗匹配和强损耗能力共存的问题提供了可行的策略。