LIU Jie;LI Qing;ZENG Jiangbao;WANG Longxiang;YANG Qing;JIANG Wei;LI Fengsheng
Nanoscale particles of hexahydro-1,3,5-trinitro-1,3,5-triazine (RDX) are obtained by means of the bidirectional superfine mill with controlled solid loadings and rotation speeds. 500g of raw RDX is addressed per batch. The size distribution of the nanoRDX is characterized by a laser particle size analyzer. The TEM observation shows that the nanoparticles are semispherical having an average size of about 60 nm. The nanoRDX is free of contamination as detected by XPS. The peak thermal decomposition temperature of nanoRDX shows a decrease of 1.6 ℃, compared with that of raw RDX. Significant decrease happens in the friction, impact and shock sensitivities, especially a decrease of 59.9% in the shock sensitivity. It is expecting to promote largescale manufacture of sensitivityreduced nanoRDX which would work for insensitive munitions.