阻尼材料的应用是降低高端装备振动，提高其运行安全性和精准性的重要途径之一。高端装备复杂的服役环境迫切需要我们提高阻尼材料的阻尼性能和强度、拓宽其阻尼温域范围。本项目首先设计并制备在低温有好的阻尼性能的阻尼胶和在高温有好的阻尼性能的阻尼胶，然后通过我们发明的微纳层状共挤技术将高温和低温阻尼材料构筑成微纳层状复合结构，研究不同层的模量比、界面相互作用和微纳多尺度受限作用对阻尼性能、阻尼温域范围、力学性能及其长期稳定性等性能的影响，研究微纳层状结构在拉伸、剪切、弯曲、扭摆等振动模式下的阻尼行为和在特定振动频率下的阻尼性能，建立高分子阻尼复合材料的耗散振动能与其链段松弛行为、界面摩擦和层界面滑移等结构演变的依赖关系，揭示层状复合结构的界面相对位移增强阻尼性能的机理，为制备高阻尼高强度的高分子阻尼复合材料提供基础数据和理论依据，为高端制造提供重要的减振阻尼复合材料具有重要的科学意义和应用价值。

In order to reduce the vibration of high-end equipment, improve theirs operating security and precision, the damping materials become more and more important and necessary. Due to complex service environment of high-end equipment, the damping materials with high loss factor and wide temperature range are required. In this proposal, the materials with high loss factor at low and high temperature, respectively, will be prepared at first, and multilayered structure will be constructed through layer-multiplying extrusion, whose technology has been developed in our lab. The effects of modulus ratio of different layers, interfacial interaction and micro-/nano-scale confinement on damping properties, temperature range, mechanical properties and long term stability will be investigated. Moreover, the damping properties at different frequency and vibration modes of the materials with multilayered structure will be studied, in order to understand the relationship between dissipative vibration energy of polymer damping materials and relaxation behaviors of polymer chains, interfacial friction and layer interface slip. The mechanism of damping properties enhanced by relative interfacial displacement of multilayered structure will also proposed. The research will offer fundamental data and theoretical basis to prepare polymer damping materials with high performance, provide key damping materials for high end manufacturing. We truly believe that the research will be of great theoretical and practical significance.