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International Journal of Energetic Materials and Chemical Propulsion
ESCI SJR: 0.149 SNIP: 0.16 CiteScore™: 0.29

ISSN Print: 2150-766X
ISSN Online: 2150-7678

International Journal of Energetic Materials and Chemical Propulsion

DOI: 10.1615/IntJEnergeticMaterialsChemProp.2015014267
pages 437-451

CURING REACTION AND RHEOLOGICAL PROPERTIES OF THE SLURRY OF AN HTPB/CL-20-BASED COMPOSITE EXPLOSIVE

Yanju Wei
Chemical Industry and Ecology Institute, North University of China, Taiyuan Shanxi, 030051, China
Jing-Yu Wang
School of Chemical and Environmental Engineering, North University of China, Taiyuan, Shanxi 030051, P.R. China
Chongwei An
School of Chemical and Environmental Engineering, North University of China, Taiyuan, Shanxi 030051, P.R. China
Hequn Li
School of Chemical and Environmental Engineering, North University of China, Taiyuan, Shanxi 030051, P.R. China

ABSTRACT

The curing and rheological properties of the slurry of an hydroxyl-terminated polybutadiene (HTPB)/2,4,6,8,10,12-hexanitro-2,4,6,8,10,12-hexaazaisowurtzitane (CL-20)-blended explosive were studied using differential scanning calorimetry and viscosity measurements. The curing kinetic parameters of the slurry were calculated using the Kissinger method and the Ozawa method to obtain a dual-Arrhenius model under thermostatic conditions. The activation energy for the curing reaction of the slurry was found to be 150.72 kJ/mol and the optimal cross-linking curing temperature was found to be 142.27°C. The dual-Arrhenius model of the slurry under thermostatic conditions was ηt = 228.12 exp (18.50 / T) exp [0.02 exp (7.98 / T) t]. As predicted by this model, the viscosity of the HTPB/CL-20-based composite explosive slurry under thermo-static conditions was consistent with experimental results.


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