Preparation of HNS microspheres by rapid membrane emulsification  

作　　者：Hongbiao Huo Baoyun Ye Yuhuai Shi Chenhe Feng Jiechao Wang Minjie Li Jiake Fan Lianqiang Li Jingyu Wang Chongwei An 

机构地区：[1]School of Environment and Safety Engineering,North University of China,Taiyuan,030051,China [2]Shanxi Engineering Technology Research Center for Ultrafine Powder,North University of China,Taiyuan,030051,China [3]School of Chemistry and Chemical Engineering,Nanjing University of Science and Technology,Nanjing,210094,China [4]Institute of Occupational Health of Ordnance Industry,Xi'an,710065,China

出　　处：《Particuology》2023年第8期35-44,共10页颗粒学报（英文版）

摘　　要：In order to improve the dispersibility and loading efficiency of 2,2',4,4',6,6'-hexanitrostilbene(HNS),HNS microspheres were prepared by rapid membrane emulsification method with nitrocellulose(NC)as binder.The effects of NC solution concentration,stirring speed and polyvinyl alcohol(PVA)solution concentration on microspheres were investigated.It was characterized by scanning electron microscope(SEM),X-ray diffractometer(XRD),differential thermal analysis(DTA)and angle of repose analyzer.The results show that the HNS microspheres prepared with 5 wt%NC solution concentration,stirring speed of 100 rpm and 2 wt%PVA solution concentration have better regular morphology,higher sphericity,unchanged crystalline shape,increased activation energy and significantly improved dispersibility compared with the refined HNS.Rapid membrane emulsification has a series of advantages such as green,low cost and easy scale up,which provides a better way to prepare microspheres of energy materials.

关 键 词：Rapid membrane emulsification HNSmicrospheres DISPERSIBILITY 

分 类 号：R318.08[医药卫生—生物医学工程]