作为目前美国能源部唯一批准的单质钝感炸药，微纳米TATB结构调控和贮存稳定性是含能材料领域关注的热点，也是其工程应用推广必须解决的关键问题。受TATB自身分子结构与π-π堆积方式的影响，湿热以及溶剂气氛环境下纳米TATB晶粒自聚长大行为相对单因素刺激诱导晶粒演化更为复杂。由于多种影响因素的复杂性，TATB自聚长大机制尚未被充分认识。为深入理解纳米TATB在湿热以及微溶剂气氛环境条件下的自聚长大机制，掌握纳米TATB物理状态在湿-热-溶剂分子诱导下的变化规律，本项目拟通过设计温度、湿度和气氛多参数加载检测试验装置，借助小角散射等先进表征技术和分子动力学模拟，考察多因素诱导对纳米TATB晶粒在不同晶面上演化规律的影响，分析纳米TATB演化行为与其内在物性之间的关联，阐述湿热环境以及溶剂分子对纳米TATB的自聚诱导长大机制，为纳米TATB炸药的贮存寿命预测提供依据。

As the only elemental insensitive explosives approved by the Department of Energy, microstructure regulation and storage stability of micro/nano TATB are the hotspots in the field of energetic materials, which are also the key issues that must be solved in the promotion of engineering applications. Affected by molecular structure and π-π stacking mode, the self-assembled growth behavior of nano-TATB under temperature-humidity-solvent atmosphere is more complicated than that of single factor. However, due to the complexity of multiple factors, the self-assembled growth mechanism of nano-TATB has not been fully revealed yet. To get insight into the mechanism of nano-TATB self-assembled growth and understand the evolution pattern of nano-TATB physical state under the wet-heat-solvent molecules multi-factor conditions, we will explore the microscopic interface reaction details on different crystal planes by designing a multi-parameter loading and detection device using combined techniques of small angle scattering and molecule dynamics. The implement of the present project will analyze the relationship between the evolution behavior of nano-TATB and its related intrinsic physical properties and elucidate the mechanism of self-assembled growth induced by multi-stimulation, providing theoretical guidance for predicting the storage life of nano-TATB explosives.