preparation of hexanitrohexaazaisowurtzitane (hniw) nano particle by normal microemulsion based nonionic surfactant

the behavior of nanoscale energetic materials is quite different from micronsized energetic materials inmany ways. recently, some techniques such as sol-gel method, high speed air impaction and vacuum codeposition have been employed to obtain nanoscale energetic materials. however, only few attentionswere paid to nanoscale energetic materials because of the fabrication difficulty. in this paper, the simplepreparation of a nitramine 2,4,6,8,10,12 hexanitro 2,4,6,8,10,12 hexaazaiso wurtzitane (hniw) withnanometer size by microemulsion method is presented. the microemulsion systems contained tween80,2-propanol and n-butyl acetate as the oil phase. on the base of dls measurement average particle size is8 nm. the prepared nanoparticles are semispherical based on sem picture.