Rapid preparation of size-tunable nano-TATB by microfluidics  

作　　者：Song Zhang Le-wu Zhan Guang-kai Zhu Yi-yi Teng Yu Shan Jing Hou Li Bin-dong 

机构地区：[1]School of Chemical Engineering,Nanjing University of Science and Technology,Nanjing 210094,China

出　　处：《Defence Technology（防务技术）》2022年第7期1139-1147,共9页Defence Technology

基　　金：National Natural Science Foundation of China(No.21875109)to provide fund for conducting experiments.

摘　　要：Nano-TATB was developed in microchannels by physical method and chemical method,respectively.The effects of total flow rate,number of microreactor plates,solvent/non-solvent ratio and temperature on the particle size of TATB in the physical method were studied.Prepared TATB were characterized by Nano Sizer,Scanning Electron Microscopy,Specific surface aperture analyzer,X-ray diffraction,Fourier transform infrared spectroscopy and Differential Scanning Calorimetry.The results show that the TATB obtained by physical method and chemical method are spherical,with average particle size of 130.66 nm and 108.51 nm,respectively.Specific surface areas of TATB obtained by physical and chemical methods are 21.37 m^(2)/g and 21.91 m^(2)/g,respectively.Compared with the specific surface area of micro-TATB(0.0808 m^(2)/g),the specific surface area of nano-TATB is significantly increased.DSC test results show that the smaller the particle size of TATB,the lower the thermal decomposition temperature.In addition,by simulating the mixing state of fluid in microchannels and combining with the classical nucleation theory,the mechanism of preparing nano-TATB by microchannels was proposed.

关 键 词：Nano-TATB MICROFLUIDICS Energetic materials Solvent/non-solvent method AMINATION Simulation 

分 类 号：TQ560.1[化学工程—炸药化工]