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Preparation and Performances of Castable HTPB/CL‐20 Booster Explosives
Author(s) -
Wang Jingyu,
An Chongwei,
Li Gang,
Liang Lei,
Xu Wenzheng,
Wen Kun
Publication year - 2011
Publication title -
propellants, explosives, pyrotechnics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.56
H-Index - 65
eISSN - 1521-4087
pISSN - 0721-3115
DOI - 10.1002/prep.200900110
Subject(s) - explosive material , materials science , detonation velocity , detonation , composite material , scanning electron microscope , thermal stability , thermal decomposition , molding (decorative) , chemical engineering , chemistry , engineering , organic chemistry
HTPB/CL‐20 castable booster explosives were prepared successfully by a cast‐cured process. Scanning electron microscope (SEM) and the charge density test were employed to characterize the molding effect of HTPB/CL‐20 explosives. The propagation reliability, detonation velocity, mechanical sensitivity, thermal decomposition characteristics and thermal stability of the HTPB/CL‐20 explosives were also measured and analyzed. The results show that, when CL‐20 content is less than 91 wt.‐%, the charges with better molding effect were obtained easily. The critical diameter of HTPB/CL‐20 explosives is less than 1 mm, which exhibits good propagation reliability. When the density of HTPB/CL‐20 charge with 91 wt.‐% CL‐20 is 1.73 g cm −3 , its detonation velocity can reach 8273 m s −1 . Moreover, this kind of explosives has low mechanical sensitivity and good thermal stability.