Confinement of thermally conductive fillers is crucial for polymer based composites to achieve highly efficient filler-filler contact and construct conductive pathways. In order to obtain superior thermal conductivity, a novel strategy was proposed to construct separated architectures in energetic composites by selective distribution of graphene nanoplates (GNPs) in confined and continuous spaces. The thermal conductivity of the 1,3,5,7-tetranitro-1,3,5,7-tetrazocane (HMX) @fluoropolymer (PF) @GNPs composites with incorporation of GNPs in separated architectures was markedly improved to 1.145 W/m K at a GNPs loading of 1.74 vol%, which was 197.2% higher than that of raw HMX@PF without GNPs. Theoretical simulation suggested that the enhanced thermal conductivity was mainly ascribed to the evidently reduced interfacial and contact thermal resistance. In addition, the characteristic impact energy (E_BAM) was improved by 43% due to the good capability of heat dissipation, indicating improved safety performance for such energetic composites. This work provides a general and efficient strategy for the fabrication of high-performance energetic materials with high thermal conductivity, low sensitivity, and superior thermal shock resistance.

导热填料的封闭对于聚合物基复合材料实现高效的填料-填料接触并构建导电路径至关重要。为了获得优异的导热性，提出了一种新的策略，即通过在有限和连续的空间中选择性分布石墨烯纳米板（GNP），在高能复合材料中构造分离的结构。1,3,5,7-四硝基-1,3,5,7-四唑烷（HMX）@含氟聚合物（PF）@GNPs复合材料的热导率在分离的结构中显着提高至1.145 W / m GNP的负载量为1.74 vol％时的K，比未使用GNP的原始HMX @ PF高出197.2％。理论仿真表明，提高的导热系数主要归因于明显降低的界面和接触热阻。由于良好的散热能力，E _BAM）提高了43％，这表明此类高能复合材料的安全性能得到了改善。这项工作为制造具有高导热率，低灵敏度和出色的抗热震性的高性能含能材料提供了一种通用而有效的策略。