Thermal Safety Study on TEGDN/NG/NC Gun Propellant

摘要

The self-accelerating decomposition temperature (T_SADT), critical temperature of thermal explosion (T_b), adiabatic time to explosion (t_TIad), 50% drop height of impact sensitivity (H₅₀), critical temperature of hot spot initiation caused by impact (T_cr,hotspot), safety degree (S_d), critical thermal explosion ambient temperature (T_acr), and thermal explosion probability (P_TE) of the gun propellant composed of triethyleneglycol dinitrate (TEGDN), nitroglycerin (NG), and nitrocellulose (NC) were studied. The results of thermal safety evaluation on the gun propellant were obtained: (1) T₀₀ = 433.4 K, T_SADT = T_e0 = 441.1 K, T_b = T_bp0 = 468.4 K; (2) when E_k = 205.3 × 103 J mol −1 and A_k = 1020.62 s −1, t_TIad = 48.3 s, H₅₀ = 17.93 cm, T_{cr, hotspot} = 634.9 K; for a sphere sample, T_S(T)max  = 369.0K, T_acr = 364.2 K, S_d = 65.03%, P_TE = 34.96%.View full textDownload full textKeywordsgun propellant, nitroglycerin (NG), thermal decomposition, thermal safety, triethyleneglycol dinitrate (TEGDN)Related var addthis_config = { ui_cobrand: "Taylor & Francis Online", services_compact: "citeulike,netvibes,twitter,technorati,delicious,linkedin,facebook,stumbleupon,digg,google,more", pubid: "ra-4dff56cd6bb1830b" }; Add to shortlist Link Permalink http://dx.doi.org/10.1080/07370651003785695