Explosive performance of HMX/NTO co-crystal

2nd International Conference on New Material and Chemical Industry

材料科学;化学工业

Li, J.C.^1,3 ; Jiao, Q.J.^2 ; Gong, Y.G.^3 ; Wang, Y.Y.^1 ; Liang, T.^1 ; Sun, J.^1

Institute of Chemical Defence, P.O. Box 1048, Beijing

102205, China^1

National Key Laboratory of Explosive Science and Technology, Beijing Institute of Technology, Beijing

100081, China^2

State Key Laboratory of NBC Protection for Civilian, Research Institute of Chemical Defence, Beijing

102205, China^3

关键词: 3 Nitro 1 ,2 ,4 triazol 5 ones (NTO);    Blasting engineering;    Crystal surfaces;    Explosive performance;    Friction sensitivities;    Impact sensitivities;    Low sensitivity;    Mechanical sensitivity;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/292/1/012032/pdf
DOI  :  10.1088/1757-899X/292/1/012032

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

A new co-crystal explosive of 1,3,5,7-tetranitro-1,3,5,7-tetrazocane (HMX) and 3-nitro-1, 2, 4-triazol-5-one (NTO) in a molar ratio of 1:1 has been prepared by solvent/anti-solvent method. The SEM photographs show that HMX/NTO co-crystals are distinctly different from HMX and NTO crystals. The co-crystals are prisms with well formed crystal surfaces. Thermal analysis results indicate the melting point of the co-crystal is 29.3 ° Chigher than that of NTO. Moreover, the co-crystal exhibits a modified mechanical sensitivity. The characteristic height (H50) of impact sensitivity increases 14.8cm, and the explosion percentage (P) of friction sensitivity decreases by 40% compared with HMX. The HMX/NTO co-crystals possess good thermal property and low sensitivity, which mean huge advantages in blasting engineering.