Ye Baoyun, An Chongwei, Zhang Yuruo, Song Changkun, Geng Xiaoheng, Wang Jingyu
School of Environment and Safety Engineering, North University of China, Taiyuan, 030051, China.
Shanxi Engineering Technology Research Center for Ultrafine Powder, North University of China, Taiyuan, 030051, China.
Nanoscale Res Lett. 2018 Feb 7;13(1):42. doi: 10.1186/s11671-017-2416-y.
A one-step method which involves exfoliating graphite materials (GIMs) off into graphene materials (GEMs) in aqueous suspension of CL-20 and forming CL-20/graphene materials (CL-20/GEMs) composites by using ball milling is presented. The conversion of mixtures to composite form was monitored by scanning electron microscopy (SEM) and powder X-ray diffraction (XRD). The impact sensitivities of CL-20/GEM composites were contrastively investigated. It turned out that the energetic nanoscale composites based on CL-20 and GEMs comprising few layers were accomplished. The loading capacity of graphene (reduced graphene oxide, rGO) is significantly less than that of graphene oxide (GO) in CL-20/GEM composites. The formation mechanism was proposed. Via this approach, energetic nanoscale composites based on CL-20 and GO comprised few layers were accomplished. The resulted CL-20/GEM composites displayed spherical structure with nanoscale, ε-form, equal thermal stabilities, and lower sensitivities.
提出了一种一步法，该方法包括在CL-20的水悬浮液中将石墨材料（GIMs）剥离成石墨烯材料（GEMs），并通过球磨形成CL-20/石墨烯材料（CL-20/GEMs）复合材料。通过扫描电子显微镜（SEM）和粉末X射线衍射（XRD）监测混合物向复合形式的转化。对比研究了CL-20/GEM复合材料的撞击感度。结果表明，成功制备了基于CL-20和少层GEMs的含能纳米复合材料。在CL-20/GEM复合材料中，石墨烯（还原氧化石墨烯，rGO）的负载量明显低于氧化石墨烯（GO）。提出了形成机理。通过这种方法，成功制备了基于CL-20和少层GO的含能纳米复合材料。所得的CL-20/GEM复合材料呈现出纳米级球形结构、ε晶型、相同的热稳定性和较低的感度。
