Polymer composites are considered to be the most effective materials in mitigating shock waves. Efforts are made in this work to improve shock wave mitigation performance of polymer composites. Epoxy resin (EP) with nano-carbon fillers, including fullerene (FL), graphene (GP), and multi-walled carbon nanotubes (CNT) were prepared through solution casting method. A variety of testing methods, including transmission electron microscope (TEM), X-ray photoelectron spectroscopy (XPS), Fourier transform infrared (FTIR) spectroscopy, differential scanning calorimetry (DSC), scanning electron microscopy (SEM), dynamic mechanical analysis (DMA), shock tube test, have been introduced to investigate the reaction process, dynamic mechanical properties and shock wave mitigation performance of epoxy composites. The results shown that different nano-carbon fillers lead to differences of spatial and reactivity in EP matrix. The addition of nano-carbon materials is conducive to improve the shock wave mitigation ability of EP. EP with GP fillers show the best enhancement for the shock wave mitigation in shock tube test. With same addition amount of nano-carbon fillers, shock wave peak pressure of EP with FL fillers (EP-FL), EP with CNT fillers (EP-CNT), and EP with GP fillers (EP-GP) decreased by 16.5%, 29.6%, and 31.7% in comparison with EP, respectively.

中文翻译：

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纳米碳填料改性环氧复合材料的冲击波缓和性能研究

聚合物复合材料被认为是减轻冲击波的最有效材料。在这项工作中努力提高聚合物复合材料的冲击波缓解性能。采用溶液浇铸法制备了具有纳米碳填料的环氧树脂（EP），包括富勒烯（FL）、石墨烯（GP）和多壁碳纳米管（CNT）。多种测试方法，包括透射电子显微镜（TEM）、X射线光电子能谱（XPS）、傅里叶变换红外（FTIR）光谱、差示扫描量热法（DSC）、扫描电子显微镜（SEM）、动态力学分析（DMA） ), 冲击管试验, 已被引入研究环氧复合材料的反应过程、动态力学性能和冲击波缓解性能。结果表明，不同的纳米碳填料导致EP基体空间和反应性的差异。纳米碳材料的加入有利于提高EP的冲击波缓解能力。EP 与 GP 填料在激波管测试中显示出对冲击波缓解的最佳增强。在纳米碳填料添加量相同的情况下，EP加FL填料（EP-FL）、EP加CNT填料（EP-CNT）和EP加GP填料（EP-GP）的冲击波峰值压力降低了16.5%，与 EP 相比，分别为 29.6% 和 31.7%。